Nilfisk-Advance 56108110 SC8000 48 LPG Service Manual Download

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Service Manual – SC8000

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eneral rou les ootin

Problem

Cause

Correction

The scrub deck
will not extend
downward, the
scrub brush motors
will not operate and
there is no solution

ÀRZ

Note that a fault
code 01, 13 or 15
will disable the
scrub system.

Scrub brush pressure valve
solenoids over current (fault
code 01 displayed)

Check L5 down and L7 up pressure valve solenoid
coils (on same fault line) for wiring problems, L5
wire colors (+ ORN and - WHT/VIO) and L7 ( +

251DQG2515('

&KHFNFRLOUHVLVWDQFH,IOHVVWKDQRKPV

UHSODFH$OVRVHHPDLQVFUXERQDQGULJKWVFUXE

brushes deck pressure electrical ladder detail and

IXUWKHUVSHFV

Scrub brush motor solenoid
over current (fault code 13
displayed)

Check L4 solenoid coil wiring for problems (+ ORN

DQG251%/8

&KHFNFRLOUHVLVWDQFH,IOHVVWKDQRKPVUHSODFH

$OVRVHHPDLQVFUXERQDQGVLGHVZHHSULJKW
VFUXEHOHFWULFDOODGGHUGHWDLO

Scrub cylinder lock solenoid
over current (fault code 15
displayed)

&KHFN/VROHQRLGFRLOZLULQJIRUSUREOHPV251

DQG<(/%/8

&KHFNFRLOUHVLVWDQFH,IOHVVWKDQRKPVUHSODFH

$OVRVHHPDLQVFUXERQDQGULJKWVFUXEEUXVKHV
GHFNSUHVVXUHHOHFWULFDOODGGHUGHWDLO

Summary of Contents for 56108110 SC8000 48 LPG

Page 1: ...08114 SC8000 60 LPG 56108115 SC8000 60 LPG ECOFLEX 56108116 SC8000 60 D 56108117 SC8000 60 D ECOFLEX 56108118 SC8000 62 LPG 56108119 SC8000 62 LPG ECOFLEX 56108120 SC8000 62 D 56108121 SC8000 62 D ECOFLEX 56108122 SC8000 48 LPG ECOFLEX 56108123 SC8000 62 LPG ECOFLEX 1LO VN 0RGHOV 56108124 SC8000 1300 LPG 56108125 SC8000 1300 D 56108126 SC8000 1600 LPG 56108127 SC8000 1600 D ...

Page 3: ...ŚŽŽƟŶŐ 58 ƉĞĐŝĮĐĂƟŽŶƐ 60 ŽŵƉŽŶĞŶƚ ƉĞĐŝĮĐĂƟŽŶƐ ϲϬ ŽŶŶĞĐƚŽƌ ĂůůŽƵƚ ʹ ZĞůĂǇ W ϲϬ ŶƉƵƚ KƵƚƉƵƚ dĂďůĞ 61 ŚŽƉ DĞĂƐƵƌĞŵĞŶƚƐ Ͳ ƌŝǀĞƌ Žǆ 67 ŚŽƉ DĞĂƐƵƌĞŵĞŶƚƐ Ͳ ZĞůĂǇ W 74 tŝƌŝŶŐ ŝĂŐƌĂŵ Ͳ ϱϲϭϬϴϭϴϱ ZĞǀ ŚĞĞƚ ϭ ƵďŽƚĂ W ŶŐŝŶĞ 75 tŝƌŝŶŐ ŝĂŐƌĂŵ Ͳ ϱϲϭϬϴϭϴϱ ZĞǀ ŚĞĞƚ Ϯ ƵďŽƚĂ ŝĞƐĞů ŶŐŝŶĞ 76 tŝƌŝŶŐ ŝĂŐƌĂŵ ƵďŽƚĂ ϭ ϲ W ŶŐŝŶĞ ϱϲϭϬϳϲϱϵ Z s 77 tŝƌŝŶŐ ĂƌŶĞƐƐ ĐŚĞŵĂƟĐ Ͳ DĂĐŚŝŶĞ 78 tŚŝƌŝŶŐ ĂƌŶĞƐƐ ĐŚĞŵĂƟĐ Ͳ ƵďŽƚĂ ŝĞƐĞů ŶŐŝŶĞ 79 E...

Page 4: ...ů 98 ŶŐŝŶĞ ŽŽůĂŶƚ 98 ŶŐŝŶĞ ŝƌ ŝůƚĞƌ DĂŝŶƚĞŶĂŶĐĞ ϭϬϬ dƌŽƵďůĞƐŚŽŽƟŶŐ 100 ĞŶĞƌĂů dƌŽƵďůĞƐŚŽŽƟŶŐ ϭϬϬ ŶŐŝŶĞ KǀĞƌŚĞĂƟŶŐ WƌŽďůĞŵƐ ϭϬϭ ŚŽƉ DĞĂƐƵƌĞŵĞŶƚƐ ϭϬϯ ƉĞĐŝĂů dŽŽůƐ 104 Hydraulic System 105 ƵŶĐƟŽŶĂů ĞƐĐƌŝƉƟŽŶ 105 KǀĞƌǀŝĞǁ ϭϬϱ ůĞĐƚƌŝĐĂů ĐŚĞŵĂƟĐ ϭϬϲ ůĞĐƚƌŝĐĂů ŝƌĐƵŝƚ ĞƐĐƌŝƉƟŽŶ ϭϬϲ ǇĚƌĂƵůŝĐ ĐŚĞŵĂƟĐ 107 ŽŵƉŽŶĞŶƚ ŽĐĂƟŽŶƐ 108 DĂũŽƌ ŽŵƉŽŶĞŶƚƐ ϭϬϴ ǇĚƌĂƵůŝĐ ǇůŝŶĚĞƌƐ ϭϬϵ ǇĚƌĂƵůŝĐ DŽƚŽƌƐ ϭϬϵ ǇĚƌĂƵůŝĐ WƵŵƉƐ ϭϭϬ ǇĚ...

Page 5: ... ĞŶĞƌĂů dƌŽƵďůĞƐŚŽŽƟŶŐ 141 DĂŝŶ ĐƌƵď ĞĐŬ ĂŶĚ ZŝŐŚƚ ŝĚĞ ĐƌƵď ŽǁŶ 143 DĂŝŶ ĐƌƵď ĞĐŬ ĂŶĚ ZŝŐŚƚ ŝĚĞ ĐƌƵď WƌĞƐƐƵƌĞ 144 DĂŝŶ ĐƌƵď ĂŶĚ ŝĚĞ ǁĞĞƉ ĐƌƵď KŶ 145 ƉĞĐŝĮĐĂƟŽŶƐ 146 ĞŶĞƌĂů ƉĞĐŝĮĐĂƟŽŶƐ 146 ĐƌƵď WƌĞƐƐƵƌĞƐ 146 ƉĞĐŝĂů dŽŽůƐ 147 Scrub System Right Side 148 ƵŶĐƟŽŶĂů ĞƐĐƌŝƉƟŽŶ 148 KǀĞƌǀŝĞǁ 148 ZŝŐŚƚ ŝĚĞ ĐƌƵď ǇƐƚĞŵ tŝƌŝŶŐ ŝĂŐƌĂŵ 148 ŝƌĐƵŝƚ ĞƐĐƌŝƉƟŽŶ 148 ZŝŐŚƚ ŝĚĞ ĐƌƵď ǇƐƚĞŵ ǇĚƌĂƵůŝĐ ŝĂŐƌĂŵƐ 149 ŽŵƉŽŶĞŶƚ Ž...

Page 6: ...ĮĐĂƟŽŶƐ ϭϴϬ ŽůƵƟŽŶ ĂŶĚ ĞƚĞƌŐĞŶƚ ĞůŝǀĞƌǇ ZĂƚĞƐ 181 Squeegee System 182 ƵŶĐƟŽŶĂů ĞƐĐƌŝƉƟŽŶ 182 KǀĞƌǀŝĞǁ ϭϴϮ ƋƵĞĞŐĞĞ ǇƐƚĞŵ tŝƌŝŶŐ ŝĂŐƌĂŵ ϭϴϮ ŝƌĐƵŝƚ ĞƐĐƌŝƉƟŽŶ ϭϴϮ ƋƵĞĞŐĞĞ ǇƐƚĞŵ ǇĚƌĂƵůŝĐ ŝĂŐƌĂŵƐ 183 ŽŵƉŽŶĞŶƚ ŽĐĂƟŽŶƐ 185 dƌŽƵďůĞƐŚŽŽƟŶŐ 186 ĞŶĞƌĂů dƌŽƵďůĞƐŚŽŽƟŶŐ 186 sĂĐƵƵŵ ĂŶ KŶ ĂŶĚ ƋƵĞĞŐĞĞ ŽǁŶ 187 sĂĐƵƵŵ ĂŶ Kī ĂŶĚ ƋƵĞĞŐĞĞ hƉ 188 ƉĞĐŝĮĐĂƟŽŶƐ 189 Steering System 190 ƵŶĐƟŽŶĂů ĞƐĐƌŝƉƟŽŶ 190 KǀĞƌǀŝĞǁ ϭϵϬ ǇĚƌ...

Page 7: ... 208 KǀĞƌǀŝĞǁ ϮϬϴ WŝƐƚŽŶ WƵŵƉ ϮϬϴ ŽŽƚ WĞĚĂů ǇĚƌŽďĂĐŬ ĂŶĚ ZŽƚĂƌǇ ĞŶƐŽƌ ϮϬϴ dƌĂĐƟŽŶ ƌŝǀĞ DŽƚŽƌ ϮϬϵ ůĞĐƚƌŝĐĂů ĐŚĞŵĂƟĐ ϮϬϵ ůĞĐƚƌŝĐĂů ŝƌĐƵŝƚ ĞƐĐƌŝƉƟŽŶ ϮϭϬ ǇĚƌĂƵůŝĐ ŝĂŐƌĂŵƐ ϮϭϬ ŽŵƉŽŶĞŶƚ ŽĐĂƟŽŶƐ 212 WŝƐƚŽŶ WƵŵƉ ǇĚƌŽďĂĐŬ ĂŶĚ ZŽƚĂƌǇ ĞŶƐŽƌ ϮϭϮ dƌĂĐƟŽŶ ƌŝǀĞ DŽƚŽƌ ϮϭϮ DĂŝŶƚĞŶĂŶĐĞ ĂŶĚ ĚũƵƐƚŵĞŶƚƐ 213 ŽŽƚ WĞĚĂů ǇĚƌŽďĂĐŬ EĞƵƚƌĂů ĚũƵƐƚŵĞŶƚ Ϯϭϯ ŽŽƚ WĞĚĂů EĞƵƚƌĂů ĞĂĚďĂŶĚ ĚũƵƐƚŵĞŶƚ Ϯϭϰ dƌŽƵďůĞƐŚŽŽƟŶŐ 215 ZĞŵŽǀĂů ĂŶĚ ...

Page 8: ...formance and long service life Please read it thoroughly before servicing your machine t er e erence Manuals an n or ation Sources 1LO VN GYDQFH 3XEOLFDWLRQV Advance SC8000 Part List PL56042606 Operator s Manuals OM56091075 English Spanish Portuguese Brazilian French 1LOÀVN 6 PL56042607 Operator s Manuals OM56091076 Danish Norwegian Swedish Finnish OM56091077 German French Dutch Russian 20 6SDQLVK...

Page 9: ...lowing items are required in order to successfully DQG TXLFNO SHUIRUP WURXEOHVKRRWLQJ DQG UHSDLU RI 1LOÀVN GYDQFH QGXVWULDO ÁRRU FOHDQLQJ HTXLSPHQW Laptop computer loaded with current version of EzParts Adobe Reader and preferably cellular internet access Digital voltmeter DVM with DC current clamp GURPHWHU DWWHU ORDG WHVWHU IRU FKHFNLQJ 9 DQG 9 EDWWHULHV Automotive fuel pressure test gauge Static...

Page 10: ...05647 Used on other model GM Engines as well as Kubota LPG in the SC8000 Kubota engine requires updated GCP display software GUDXOLF WHVW JDXJH Z FRQQHFWRU SVL UDQJH S Q 56504516 Engine service kit p n 56109084 LPG test kit p n 56504450 ECOM Diagnostic Communication Cable and software p n 56305647 Hydraulic test gauge w connector 3000 psi range p n 56504516 ...

Page 11: ...QDO UHSODFHPHQW SDUWV DQG DFFHVVRULHV DOO WKH 1LOÀVN GYDQFH HDOHU QDPHG EHORZ IRU UHSDLU SDUWV RU VHUYLFH 3OHDVH VSHFLI WKH 0RGHO 1XPEHU same as the Part Number and Serial Number when discussing your machine HDOHU DIÀ VHUYLFH VWLFNHU KHUH a e lates The Model Number and Serial Number of the machine are shown on the Nameplate located on the steering column support and on a second Nameplate beneath t...

Page 12: ...lls Clean only while ascending driving up the ramp HHS VSDUNV ÁDPH DQG VPRNLQJ PDWHULDOV DZD IURP WKH EDWWHU SORVLYH JDVHV DUH YHQWHG during normal operation KDUJLQJ WKH EDWWHU SURGXFHV KLJKO H SORVLYH K GURJHQ JDV KDUJH WKH EDWWHU RQO LQ ZHOO YHQWLODWHG DUHDV DZD IURP RSHQ ÁDPH R QRW VPRNH ZKLOH FKDUJLQJ WKH EDWWHU 5HPRYH DOO MHZHOU ZKHQ ZRUNLQJ QHDU HOHFWULFDO FRPSRQHQWV Turn the Key Switch off ...

Page 13: ... OHDYH WKH PDFKLQH XQDWWHQGHG ZLWKRXW ÀUVW WXUQLQJ WKH H 6ZLWFK RII 2 UHPRYLQJ WKH NH DQG VHFXULQJ WKH PDFKLQH SSO WKH SDUNLQJ EUDNH EHIRUH H LWLQJ WKH 2SHUDWRU V VHDW 7XUQ WKH H 6ZLWFK RII 2 DQG UHPRYH WKH NH EHIRUH FKDQJLQJ WKH EUXVKHV DQG EHIRUH opening any access panels 7DNH SUHFDXWLRQV WR SUHYHQW KDLU MHZHOU RU ORRVH FORWKLQJ IURP EHFRPLQJ FDXJKW LQ PRYLQJ parts Use caution when steering and ...

Page 14: ...ns ortin t e Mac ine DXWLRQ HIRUH WUDQVSRUWLQJ WKH PDFKLQH RQ DQ RSHQ WUXFN RU WUDLOHU PDNH VXUH WKH PDFKLQH LV WLHG GRZQ VHFXUHO DW WKH GHVLJQDWHG 7LH RZQ DFNLQJ RFDWLRQV VKRZQ EHORZ DOO DFFHVV GRRUV DQG FRYHUV DUH VHFXUHG WDSH DQG VWUDS DV QHHGHG DQG WKH SDUNLQJ EUDNH LV HQJDJHG 7KH MDFNLQJ DQG WLH GRZQ ORFDWLRQV DUH LGHQWLÀHG ZLWK D JUDSKLF PROGHG LQWR WKH H WHULRU body panels Tie Down Jacking ...

Page 15: ...H PDFKLQH 1RWH WKDW LI WKH WRZ YDOYH LV OHIW LQ WKH IUHHZKHHOLQJ SRVLWLRQ 7RZ 9DOYH HYHU SXOOHG 287 WKH K GURVWDWLF SXPS FDQ W HI FLHQWO SURSHO WKH PDFKLQH LQ IRUZDUG RU UHYHUVH WWHPSWLQJ WR RSHUDWH WKH PDFKLQH ZLWK WKH 7RZ 9DOYH HYHU SXOOHG 287 FDQ FDXVH RYHUKHDWLQJ RI WKH K GUDXOLF V VWHP DQG RU UHGXFHG RSHUDWLQJ SHUIRUPDQFH 7RZ WKH PDFKLQH QR IDVWHU WKDQ D QRUPDO ZDONLQJ SDFH PLOHV SHU KRXU NLO...

Page 16: ...ng path width dual sweep LQ FP Main brush diameter and length LQ LQ FP FP Side scrub brush right LQ FP Side broom sweep LQ FP Solution tank capacity 3 inches from top JDO Recovery tank shutoff JDO Scrub brush pressure three settings 1 150 lbs 2 250 lbs OEV Main brush RPM 530 HQJLQH 530 Debris hopper volume capacity 1 5 ft3 P3 Debris hopper weight capacity OEV J Weight empty OEV J Weight GVWR OEV J...

Page 17: ...eneral n or ation Service Manual SC8000 verall i ensions ...

Page 18: ... lb 62 in lb M8 22 ft lb 13 ft lb M10 IW OE 25 ft lb M12 IW OE IW OE Maintenance Maintenance Sc e ule Keep the machine in top condition by closely following the maintenance schedule Maintenance intervals given are for average operating conditions Machines used in severe environments may require service more often In general HHS WKH IXHO WDQN ÀOOHG GLHVHO 7KLV KHOSV WR UHGXFH FRQGHQVDWLRQ DQG PRLVW...

Page 19: ...eaks KHFN WKH DLU FOHDQHU VHUYLFH LQGLFDWRU DQG VHUYLFH WKH DLU OWHU when the indictor is shown red Operator control panel KHFN IRU D K GUDXOLF OWHU SOXJJHG LFRQ RQ WKH RSHUDWRU SDQHO display Hydraulic system Check the oil level in the hydraulic oil reservoir level should be to bottom of screen Check for any hydraulic leaks Recovery tank Check that the drain hose cap is sealed UDLQ DQG FOHDQ WKH L...

Page 20: ... VPDOO DPRXQW RI JUHDVH LQWR HDFK JUHDVH WWLQJ RQ WKH machine until grease seeps out around the bearings Steering Rack SSO JUHDVH WR OXEULFDWH QJOH DGMXVWPHQW NQRE WKUHDGV RQ WKH squeegee mount Squeegee tool end wheels SSO OLJKW PDFKLQH RLO WR OXEULFDWH Fuel Tank Cover Latch EcoFlex 3 Cover Latch Recovery tank latch UDNH 3HGDO SDUNLQJ EUDNH OLQNDJH Maintenance ver 0 ours Maintenance Item Procedure...

Page 21: ...XHO SXPS Maintenance ver 800 to 000 ours Maintenance Item Procedure Radiator OXVK DQG UH OO UDGLDWRU ZLWK PL RI ZDWHU DQG DQWLIUHH H Hydraulic oil reservoir KDQJH WKH UHVHUYRLU RLO DQG OWHU Maintenance ver 000 ours Maintenance Item Procedure Engine maintenance LPG and diesel only 5HYLHZ WKH HQJLQH PDQXIDFWXUHU V DGGLWLRQDO PDLQWHQDQFH requirements Note The engine maintenance schedule shown lists t...

Page 22: ...eads on Squeegee 0RXQW JUHDVH Steering 5DFN JUHDVH Squeegee End Tool KHHO RLO Squeegee End Tool KHHO RLO Recovery Tank Latch RLO Fuel Tank Cover DWFK RLO Brake Pedal SDUNLQJ EUDNH LQNDJH RLO Detergent Cover Latch RLO Squeegee Caster Wheel 3LYRW JUHDVH Squeegee Caster Wheel Axle JUHDVH ...

Page 23: ...em performance max Fwd 8 mph Noisy sluggish 8 UDNHV 9 Steering excessive play 10 Right side scrub brush raise lower model option if equipped 11 Right side scrub brush on off must have main scrub turned on 12 Side sweep broom s raise lower model option if equipped 13 Side broom s on off Dust guard sweep dust control On Off model option if equipped 15 Scrub system Raise Lower and auto scrubbing func...

Page 24: ... and main scrub deck 39 DWWHU clean and water C Engine oil level hoses and belts C D L Engine air cleaner element inner and outer check service indicator C L Engine coolant level OO DW UHVHUYRLU C L Radiator and oil cooler core blockage clean C D L Hydraulic oil reservoir level 10W 30 engine oil only to bottom of screen C L GUDXOLF V VWHP KRVHV DQG WWLQJV L Propulsion drive pump dump valve tow val...

Page 25: ... pick up screen EDFN ÀXVK FOHDQ C 63 XVW JXDUG VSUD QR OHV DQG VWUDLQHUV clean C L W Defect Codes A needs adjustment C dirty or contaminated M missing B binding D damaged bent or torn W worn out L OHDNV RUN RPSOHWHG E FNQRZOHGJHG E ____________________________________ __________ ____________________________________ ___________ Service Technician Signature Date Customer Signature Date ...

Page 26: ...lant 2YHUÀRZ Tank Engine Air Filter Engine Cover Latch Recovery Tank Drain Hose Recovery Tank Tilt out Latch Recovery Tank Tilt out Grip Left Side Skirt Double Scrub Skirt Holder Left Side Skirt Latch Fuel Tank LHVHO WDQN VKRZQ Fuel Tank Cover Latch Headlight Fuel Tank Cover Steering Wheel Operator Seat Adjustment Lever Operator Seat Solution Tank Fill Cover ...

Page 27: ...rking Brake Drive Pedal Direction Speed Steering Wheel Tilt Adjust Lever Right Side Skirt Latch Tow Valve Lever Battery Solution Filter Squeegee Assembly Engine Oil Dipstick Engine Oil Filter Solution Tank Drain Hose Squeegee Height Adjust Knob Engine Cover Prop Rod Squeegee Tilt Adjust Knob Engine Oil Drain XQGHU UDGLDWRU Hydraulic OIl Reservoir Filler Cap Oil Cooler Tilt out Latch Squeegee Mount...

Page 28: ...VVXUH WR WKH QH W KLJKHVW VFUXE SUHVVXUH Ő QFUHDVHV WKH VROXWLRQ ÁRZ WR WKH QH W KLJKHVW ÁRZ UDWH DQG Ő QFUHDVHV WKH GHWHUJHQW UDWLR WR WKH QH W KLJKHVW FRQFHQWUDWLRQ 7KH FR OH LQGLFDWRU ZLOO EOLQN DQG WKH VFUXE SUHVVXUH VROXWLRQ ÁRZ DQG GHWHUJHQW FRQFHQWUDWLRQ ZLOO UHPDLQ DW WKHVH KLJKHU OHYHOV IRU VHFRQGV IWHU VHFRQGV WKH VFUXE SUHVVXUH VROXWLRQ ÁRZ DQG GHWHUJHQW FRQFHQWUDWLRQ ZLOO UHWXUQ WR WKH...

Page 29: ...is so equipped Side Broom Up Adjust Switch raises the side broom s Side Broom Scrub On Off Switch enables and disables the side broom s and or right side scrub system Note that when the side broom s scrub brush system is enabled the DustGuard spray system will also switch on automatically Also note that when the side broom s scrub brush system is enabled the broom s brush will return to their last...

Page 30: ...e in idle override the automatic idle feature will be temporarily disabled until the next time the foot pedal is moved from the neutral position This can be useful during troubleshooting or if you want to run the machine at full speed to warm it up Key Switch main power ignition switch Control anel n icators Extended Scrub Indicator indicates that the optional H WHQGHG VFUXE V VWHP LV enabled Dete...

Page 31: ...ndicates that the side broom brush system is enabled Emergency Flasher Indicator indicates that the HPHUJHQF ÁDVKHUV DUH switched on Headlight Indicator indicates that the headlights are switched on DustGuard Indicator indicates that the DustGuard system is enabled Engine Speed Indicator indicates that the engine is at either normal operating speed or Turbo speed The light will be off when the eng...

Page 32: ...H PDLQ FRQWUROOHU ERDUG VKRZV WKH QRQ FULWLFDO FRQWUROOHU fault code icon with a two digit code 08 and wrench symbol This is a non critical fault code that indicates the right side scrub solution solenoid valve is over its current limit The right side scrub system will shut off but the rest of the machine systems will continue to operate Icon Condition Display Icon Solution Level Low 7KH ÀRDW VZLW...

Page 33: ... waste water from the tank If tank is empty and the icon is displayed service clean WKH WDQN ÀRDW LW FRXOG EH VWXFN OVR FKHFN WKH ÀRDW FLUFXLW ZLULQJ IRU DQ RSHQ arnin is la s DPSOH 7KH PDLQ FRQWUROOHU ERDUG VKRZV WKH HQJLQH VHUYLFH LFRQ with a two digit fault code 38 and wrench symbol This is a critical engine fault code that indicates the main control board received a run inhibit signal from the...

Page 34: ...me critical faults will prevent the operation of certain machine functions Hydraulic Temperature The hydraulic oil temperature has exceeded an average operating temperature greater than 220 degrees F for longer than 15 seconds Possible causes include low oil level in the reservoir GHEULV EORFNLQJ DLUÀRZ DW WKH RLO FRROHU RU hydraulic component overloads Low Fuel The fuel sensors read low fuel leve...

Page 35: ...Service Manual SC8000 C assis S ste Ma or C assis Co onents Front Hood Rear Cover Assembly Floor Weldment Cover Support Assembly Chassis Weldment Front Floor Tank Heavy Bumper Assembly ...

Page 36: ...C assis S ste Service Manual SC8000 Rear Cover Rear Grille Cover Support Weldment RH Latch Latch Handle Heavy Bumper Weldment ...

Page 37: ...System controller on the Kubota LPG engine and the APECS 3000 Governor on the Kubota diesel to monitor engine parameters The Driver Box also communicates with the Relay PCB which provides the engine start and run signals Control S ste irin ia ra Circuit escri tion The Key Switch must be on to provide power to the Driver Box and Dashboard Panel The Driver Box and Dashboard Panel communicate over th...

Page 38: ...ste 8 Service Manual SC8000 Co onent ocations Driver Box Dashboard Panel Main Control Board Connector J3 Main Control Board Connector J1 Main Control Board Connector J2 K1 Power Relay Relay PCB Start Run Inhibit ...

Page 39: ...14 Open J1 15 Open J1 16 18 1 RED BLK Input S29 Horn switch J1 17 Open J1 18 16 1 BLK ground Chassis ground X 49 J1 19 18 1 GRN ORN Input Sender hydraulic oil temperature J1 20 18 1 VIO WHT Input S6 Brake switch J1 21 18 1 VIO YEL Input S3 Solution empty switch J1 22 18 1 WHT BRN Output Relay PCB start inhibit pin J7 3 J1 23 Open J1 24 18 2 VIO BRN Input Ignition switch start position J1 25 18 1 G...

Page 40: ... CB4 circuit breaker 20A J2 13 18 1 WHT ORN Output K4 glow plug relay coil J2 14 Open J2 15 Open J2 16 Open J2 17 16 2 BLK Input X49 control box ground J2 18 16 3 BLK Input X49 control box ground J2 19 Open J2 20 Open J2 21 Open J2 22 18 1 YEL GRN Output L10 solenoid valve main solution J2 23 18 3 GRN BRN Input CB5 circuit breaker 10A J2 24 18 1 ORN RED Output S7 scrub pressure proportional soleno...

Page 41: ...taillights J3 9 16 1 GRA RED Input CB1 Circuit Breaker 20A J3 10 Open J3 11 16 4 BLK Input X49 control box ground J3 12 16 5 BLK Input X49 control box ground J3 13 16 6 BLK Input X49 control box ground J3 14 16 3 BLU Input CB2 Circuit Breaker 20A J3 15 16 2 BLU Input CB2 Circuit Breaker 20A J3 16 18 1 VIO Input CB3 Circuit Breaker 15A J3 17 18 1 WHT YEL Output Horn J3 18 16 1 YEL BLK Output M5 mis...

Page 42: ... Deadband 3 Press the green Scrub On switch 7KH ÀUVW OLQH RI WKH will read Neutral Set The second line of the display will show the resistance value in ohms that the control board is reading through the rotary sensor Note that it s normal for this value to drift a little 4 Press the green Scrub On switch to set the nominal deadband resistance value The display will return to the previous menu 5 Pr...

Page 43: ... switch until all the display panel lights turn off approximately three seconds then release the switch 7KH ÀUVW OLQH RI WKH ZLOO UHDG CONFIGURATION DISPLA 3 Press the Side Broom Up and Down switches to scroll through the displayed menu items as shown on the following pages 4 When the arrow is pointing to a menu item Press the green Scrub On switch to display the next level of menu items Press the...

Page 44: ...s Clear Fault Codes Are You Sure Press the Scrub On switch to clear the fault codes The display will show No Stored Codes Engine Type Undefined Propane Gasoline Diesel Undefined Propane Gasoline Diesel Installed Display Format Installed Not Installed Ratio Percentage EcoFlex System Installed Not Installed Side Scrub System Installed Not Installed Side Sweep System Installed Not Installed Extended ...

Page 45: ...options 5 Press the Side Broom Up and Side Broom Down switches to select the desired option 6 When the arrow is pointing to an option Press the green Scrub On switch to select the option The display will then return to the previous menu level Press the red Scrub Off switch to return to the previous menu level without selecting the option 7 To save the new setting s turn the Key Switch to the off p...

Page 46: ...I DVW 6WDWH 6FUXE 0RGH 6FUXE 3UHVVXUH 0LQLPXP 0HGLXP 0D LPXP 6ROXWLRQ ORZ ORZ 5DWH HWHUJHQW 0L DVW 8VHG 1HXWUDO 2II HOD QR GHOD VHFRQGV 6HOHFWV QHXWUDO RII GHOD WLPH WR VHFRQGV LQ VHFRQG LQFUHPHQWV 6ROXWLRQ LQ 5HYHUVH 2Q 2II 6HOHFWV WKH VFUXE PRGH RQ VWDUWXS 6HOHFWV WKH VROXWLRQ IORZ UDWH IRU WKH VHOHFWHG VFUXE PRGH 6HOHFWV WKH VFUXE PRGH DVW 8VHG HSHQGV RQ WKH LVSOD RUPDW VHOHFWHG LQ WKH RQILJXUD...

Page 47: ... seconds in 1 second increments 10 30 seconds Selects the vacuum off delay time 10 to 30 seconds in 1 second increments Normal Neutral Unlocked Control Locks Detergent Detergent Solution Side Scrub System Start Up State Off On Last State Appears only when the Side Scrub system is installed Side Sweep System Appears only when the Side Sweep system is installed Broom Start Up Off On Last State ...

Page 48: ... 250 seconds in 1 second increments Back up Alarm Reverse Only Forward Reverse 10 250 seconds Extended Scrub System Start Up State Appears only when the Extended Scrub system is installed Operating Mode Off On Last State Use Anytime Use Clean First Side Sweep System Appears only when the Side Sweep system is installed Dust Guard Start Up Off On Last State ...

Page 49: ... PHQX LWHPV DV VKRZQ RQ WKH IROORZLQJ SDJHV 5 When the arrow is pointing to the desired menu item press the green Scrub On switch to GLVSOD WKH QH W OHYHO RI FRQÀJXUDWLRQ RSWLRQV 6 Press the Side Broom Up and Side Broom Down switches to select the desired option 7 KHQ WKH DUURZ LV SRLQWLQJ WR WKH FRQÀJXUDWLRQ RSWLRQ Press the green Scrub On switch to select the option The display will then return ...

Page 50: ...cy Flashers and Headlight switches then turn the key switch on Installed Diesel Gas Propane Detergent System Not Installed Not Installed Installed EcoFlex System Side Scrub System Not Installed Installed Side Sweep System Not Installed Installed Display Format Undefined Ratio Percentage Installed ...

Page 51: ...nded Scrub System Not Installed Not Installed Installed Back up Alarm Installed Not Installed Signal Lights Installed US Display Display Screen Global Display Off Operator Presence On Restore Defaults Are You Sure Press the Scrub On switch to restore the default settings ...

Page 52: ...r than one second If the engine is running it is switched Off by inhibiting the ignition and start signals If the Recovery system is On and the Scrub system is Off the Recovery system transitions to the Wand mode Pressing the Scrub Off switch turns the Scrub system Off Pressing the Scrub On switch has no effect Pressing the Wand Vacuum switch with the Scrub system Off transitions the Recovery syst...

Page 53: ...d GRA ORN Check pump motors for short circuits replace as needed 00 C Extend scrub pump over current Check Pump motor M6 wiring for problems GRN BLU and GRA ORN Same fault line used for main solution pump M4 and M6 01 C Scrub brush pressure valve solenoids over current Check L5 down and L7 up pressure valve solenoid coils on same fault line for wiring problems L5 wire colors ORN and WHT VIO and L7...

Page 54: ...side scrub solution valves and pump electrical ladder detail 08 NC Right side scrub solution solenoid valve over current Check L11 solenoid coil wiring for problems ORN and BLU YEL Check coil resistance If less than 10 ohms replace Also see main scrub and right side scrub solution valves and pump electrical ladder detail 09 C Vacuum fan solenoid over current Check L1 solenoid coil wiring for probl...

Page 55: ...s than 6 ohms replace Also see main scrub and right side scrub lift electrical ladder detail 19 NC Horn over current Check H4 horn wiring for problems ORN GRN and WHT YEL Check horn for short circuit spec 4A 12V replace as needed 20 NC Left turn signal lamp over current Check left turn signal wiring for problems YEL and BLK Check lamp for short see the I O table for circuit spec 21 NC Right turn s...

Page 56: ...and BLK RED Check pump motors for short circuit replace as needed 32 NC Detergent pump 2 over current See pump 1 33 C Engine hot fault Coolant temperature high causes engine fault sets on diesel machine only 34 C Hydraulic temperature fault Sets when hydraulic oil temperature exceeds 220 F for 15 seconds 35 C Low voltage fault battery One of the red display panel warning indicator lights See the e...

Page 57: ...M5 over current 05 No speed input 2200 RPM ECM 06 No speed input 2400 RPM ECM 07 Main solution solenoid valve L10 over current 08 Right side scrub solution solenoid L11 over current 09 Vacuum fan solenoid L1 over current 10 Not used 11 Squeegee UP solenoid L3 over current 12 Squeegee DOWN solenoid L2 over current 13 Scrub motor solenoid L4 over current 14 Glow plug relay K4 coil over current 15 Sc...

Page 58: ... over current 27 15A circuit breaker CB3 over current 28 20A circuit breaker CB4 over current 29 10A circuit breaker CB5 over current 30 Side sweep lift M7 actuator over current 31 1 detergent pump M10 over current 32 2 detergent pump M11 over current 33 Engine hot fault diesel 34 Hydraulic oil temperature fault 35 Low voltage fault battery 36 Service engine fault non critical 37 Low oil pressure ...

Page 59: ... CB6 must be closed to provide voltage to the Key Switch S1 The Ignition Key Switch S1 must be on to provide positive battery voltage to the K1 Relay Coil and certain inputs on the Driver Box The circuit breakers CB1 CB2 CB3 CB4 and CB5 must be closed to provide voltage to the side broom actuator lighting systems electric pump motors and solenoid valves S1 POWER RELAY KEY SWITCH PIN J2 1 K1 RELAY ...

Page 60: ... is mounted inside the control board assembly Note that a second identical power relay K4 is installed on diesel models as the glow plug power relay Circuit rea ers The Circuit Breakers are mounted on the control board to the left of the Operator position Circuit Breakers K1 Power Relay ...

Page 61: ...LCD diesel engine only Glow plug relay K4 coil over current fault code 14 displayed Check K4 relay coil wiring for problems ORN GRN and WHT ORN Check coil resistance If less than 36 ohms replace Also see diesel glow plug starting circuit electrical ladder detail Fault code 20 displayed Left turn signal lamp over current Check left turn signal wiring for problems YEL and BLK Check lamp for short se...

Page 62: ...ault for CB2 power for mist pump M5 and M8 wash hose pump Check for BLU wire shorted to ground Fault code 27 displayed 15A Circuit breaker CB3 over current Control board has sensed open circuit fault for CB3 power for side broom actuator motor M7 Check for VIO wire shorted to ground Fault code 28 displayed 20A Circuit breaker CB4 over current Control board has sensed open circuit fault for CB4 pow...

Page 63: ...ibit signal J7 8 ORN GRN Input B Module ignition relay Bat coil signal Note 7KH QRUPDO FRQGLWLRQ IRU WKH VWDUW LQKLELW LV LQ LWV QRQ LQKLELWHG VWDWH ÁRDW YROWDJH RI approximately 8V when referenced to B is measured when the key is in the start position KHQ LQKLELWHG WKH VLJQDO LV SXOOHG WR JURXQG ZLOO UHDG 9 DQG ZLOO SUHYHQW WKH HQJLQH IURP FUDQNLQJ 7KLV SUHYHQWV WKH VWDUWHU UHOD IURP EHLQJ HQHUJL...

Page 64: ...gital voltage 0V B Switch to ground Ground or open closes when Operator in seat J1 6 Not Used J1 7 Input Fuel Level Sensor diesel Variable resistance 0 40 1 66V B Variable resistance to ground 33 240 ohms Nominal voltage provided is subject to change if additional resolution is required Fuel Level Sensor LP Digital voltage 0V B Switch to ground Ground or open closed when tank is empty J1 8 Ground ...

Page 65: ...h Digital voltage 0V B Switch to ground Ground or open closes when tank is empty J1 22 Output Start Inhibit Low side driver 0V B MOSFET gate on relay PCB assy 3 mA 12V URXQG RU ÀRDW J1 23 Ground J1 24 Input Start KEYPOS Switch Digital voltage B B System voltage From key switch J1 25 Input Check Engine Switch Digital voltage 0V B Engine Control Module low side output Switch to ground J1 26 Ground J...

Page 66: ...Output Side Scrub Lift Solenoid Low side driver 0V B Hydraulic coil 1 5A 12V 8 ohms 20 C J2 4 Output Scrub Lock Solenoid Low side driver 0V B Hydraulic coil 1 5A 12V 8 ohms 20 C J2 5 Output Squeegee Down Solenoid Low side driver 0V B Hydraulic coil 1 5A 12V 8 ohms 20 C J2 6 Output Squeegee Up Solenoid Low side driver 0V B Hydraulic coil 1 5A 12V 8 ohms 20 C J2 7 Output Scrub Brush Solenoid Low sid...

Page 67: ...12V 17W J2 23 Power B Circuit Breaker 5 VACC5 Power 12 1 5 VDC B System voltage Power from circuit breaker 5 10A J2 24 Output Scrub Pressure Up Low side PWM driver PWM 0 12V B Hydraulic coil 2 1A 12V 2 2 ohms 20 C J2 25 Ground J2 26 Output Scrub Pressure Down Low side PWM driver PWM 0 12V B Hydraulic coil 2 1A 12V 2 2 ohms 20 C J2 27 Ground J2 28 Ground J2 29 Output ECM Engine 2200 RPM High side d...

Page 68: ...stem voltage Power from circuit breaker 1 20A J3 2 Output Main Solution Pump Low side PWM driver PWM 0 12V B Pump motor 11 5 FLA 12V 46 LRA 5KHz variable duty cycle J3 3 Ground J3 4 Output Side Sweep Actuator HI Red Lead H bridge driver 12V B Actuator motor 20 2 FLA 80 LRA est Bridge switching power ground for Down otherwise open J3 5 Output Side Sweep Actuator LO Black Lead H bridge driver 0V B A...

Page 69: ... VDC B System voltage Power from circuit breaker 3 15A J3 17 Output Horn Low side driver 0V B Electromagnetic horn 4A 12V J3 18 Output Side Sweep Mist Pump Low side driver 0V B Pump motor 3 9 FLA 24V 16 LRA 24V pump operated at 12V J3 19 Output Detergent Pump 2 H bridge driver 0 to B B 0 65A 12V Pulsed on and off at a rate less than 10 Hz J3 20 Output Detergent Pump 2 H bridge driver 0 to B B 0 65...

Page 70: ...cation J1 3 ORN BLK CAN H CAN Bus 0 5V Differential serial data 2 50v key on User interface panel serial communication J1 4 Not Used J1 5 YEL Seat Switch Digital voltage 0V Switch to ground 12 8v off seat 0 008v on seat Ground or open closes when Operator in seat J1 6 Not Used J1 7 BRN WHT Fuel Level Sensor diesel Variable resistance 0 40 1 66V Variable resistance to ground 33 240 ohms Nominal vol...

Page 71: ...ke Pedal Switch Digital voltage 0V Switch to ground 0 04v at rest 11 9v pressed Closes when brake pedal released J1 21 VIO YEL Solution Empty Switch Digital voltage 0V Switch to ground 0 004v empty 12 26v not empty Ground or open closes when tank is empty J1 22 WHT BRN Start Inhibit Low side driver 0V MOSFET gate on relay PCB assy 3 mA 12V 9 2v cranking normal 0 015v inhibited URXQG RU ÀRDW J1 23 ...

Page 72: ...h to ground 11 7v key on Ground or open closed when tank is empty J1 34 YEL WHT Ignition Inhibit Low side driver 0V MOSFET gate on relay PCB assy 3 mA 12V 11 7v key on URXQG RU ÀRDW J1 35 Not Used J2 1 BLU GRN Main Power Relay Low side driver 0V Relay coil 0 29A 12V 0 33v key on 46 5 ohms J2 2 BLK WHT Side Sweep Scrub Solenoid S8 Low side driver 0V Hydraulic coil 1 5A 12V 11 9v Sol off 0 39v Sol o...

Page 73: ...as pulsed on momentarily You may not see the change without a Min Max function on your voltmeter J2 11 BLU BLK Backup Audible Alarm Low side driver 0V Electronic alarm 0 25A 12V 14 4v off J2 12 ORN Circuit Breaker 4 VACC4 Power 12 15 VDC System voltage 14 5v Eng running Power from circuit breaker 4 20A J2 13 WHT ORN Glow Plug Relay Low side driver 0V Relay coil 0 29A 12V Not measured 46 5 ohms J2 ...

Page 74: ...M High side driver 12V Engine Control Module input 2 79v at idle 14 3v Mid 2 81v High 9 IRU 530 ÀRDW RWKHUZLVH J2 30 GRA BLU ECM Engine 2400 RPM High side driver 12V Engine Control Module input 2 79v at idle 2 79v Mid 14 3v high 9 IRU 530 ÀRDW RWKHUZLVH J2 31 YEL Left Front Turn Lamp High side driver 12V Incandescent lamp 0 33A 12V 0 004v off 12 3v on 0 4A 14 5V 4W turn lamp J2 32 GRN Right Front ...

Page 75: ...FLA 80 LRA est Not Measured Bridge switching power ground for Down otherwise open J3 5 WHT RED Side Sweep Actuator LO Black Lead H bridge driver 0V Actuator motor 20 2 FLA 80 LRA est Not Measured Bridge switching power ground for Up otherwise open J3 6 Not Used J3 7 GRA VIO Side Sweep Actuator MID White Common Lead H bridge driver B or 0V Actuator motor 20 2 FLA 80 LRA est Not Measured Bridge swit...

Page 76: ...p Low side driver 0V Pump motor 3 9 FLA 24V 16 LRA Not Measured 24V pump operated at 12V J3 19 BLK RED Detergent Pump 2 H bridge driver 0 to B 0 65A 12V 0 16v to 14 5v Pulsed on and off at a rate less than 10 Hz Normal scrub approx 0 2v Burst of power scrub approx 10 14v J3 20 BLK YEL Detergent Pump 2 H bridge driver 0 to B 0 65A 12V 0 16v to 14 5v Pulsed on and off at a rate less than 10 Hz Burst...

Page 77: ...ith no side sweep Pin ID Wire Color Pin Assignment Real World Shop Measurements J7 1 VIO GRA B 12 3v key on J7 2 BLU PINK Engine Start 0 03v key on 10 7v cranking J7 3 WHT BRN Start Inhibit 0 2v key on 8 8v cranking J7 4 BLK Ground 0 005 key on 0 2v cranking J7 5 PINK Engine Run 12 3v key on 11 2v cranking 14 6v running J7 6 VIO BRN Start Key Pos 0 2v key on 11 2v cranking J7 7 YEL WHT Ignition In...

Page 78: ...NK ORN GRN BRN BLU GRN BRN VIO BLU GRN ORN YEL BLK WHT GRN GRN RED GRN WHT BLK GRN BLK VIO BLU BLK RED PINK WHT ORN RED VIO GRA RED VIO GRA GRA BRN WHT YEL WHT ORN GRN BLK GRA RED GRA BLK BRN BLU BLK GRA VIO YEL RED WHT RED ORN GRA YEL GRA BRN YEL BRN WHT BLU BRN BRN BLK YEL YEL RED GRN ORN BRN ORN BRN BRN BLK BRN BLK BRN BLK BLK GRN BLK BLU PINK PINK ORN GRN ORN GRN VIO BRN ORN BLK BLK YEL BLK VI...

Page 79: ... BLU GRN BRN BLK GRN BRN RED YEL GRN BRN GRA VIO VIO VIO GRA RED BLU PINK RED GRA BRN BLK RED GRA BRN PINK YEL RED GRA BRN YEL BLK RED GRN RED GRN ORN YEL BLK GRN BLU BLK YEL ORN GRN ORN GRN ORN BLK GRA RED GRA ORN GRN PINK PINK ORN BLU RED VIO RED BLK BLU ORN VIO BLU ORN RED YEL BLU ORN ORN ORN BLK WHT GRN VIO ORN ORN RED ORN GRN PINK RED VIO GRN YEL BRN BLU BLK ORN YEL GRN BLU YEL ORN WHT VIO OR...

Page 80: ...irin ia ra u ota n ine 0 lectrical S ste 80 Service Manual SC8000 ...

Page 81: ...BLK 18 5 BLK 6 2 BLK 18 7 BLK 18 11 BLU 12 1 BLU 14 1 RED 1 1 BLK 1 1 GRN BRN 18 8 GRN BLU 16 1 BLK 4 1 BLK 18 14 BLK 18 13 BLK 18 14 BLK 18 15 BLK 16 8 BLK 16 10 BLK 16 9 BLK 16 10 BLK RED 16 1 PINK 16 8 PINK 16 7 PINK 16 6 YEL GRA 18 1 BRN WHT 18 1 ORN GRA 18 1 RED VIO 12 5 BRN 16 6 VIO GRA 16 2 RED 14 2 ORN GRN 16 2 BLK 20 1 ORN GRN 20 1 ORN GRN 20 1 PINK 16 4 VIO BRN 18 1 VIO GRA 16 1 BLK 18 1...

Page 82: ... BLU PINK 16 4 RED YEL 18 7 RED 16 3 RED YEL 18 7 BLK 16 12 GRA BRN 18 2 GRN YEL 18 3 RED 12 2 BLK 16 13 RED 16 2 RED YEL 18 8 RED 16 1 RED 16 2 VIO 18 22 GRA 18 6 VIO 18 21 BLK 16 13 RED YEL 18 9 RED YEL 18 8 RED 6 1 RED YEL 18 9 PINK 16 8 BLK 16 12 RED 6 1 TAN 18 3 BLU PINK 16 4 S28 SWITCH OIL PRESSURE C NO NC SP22 1 2 2 X1 A B C D E F G H J K L M N P R S X1 A B C D E F G H J K L M N P R S X140 ...

Page 83: ...g system A Woodward APECS 3000 Governor controls the fuel quantity to maintain the selected RPM or shut the engine off iesel n ine Starter Circuit ia ra 30 50 L I F S P DRIVE BOX PIN J1 22 PIN J1 34 PIN J1 10 PIN J1 31 PIN J1 11 Battery From F1 Fuse 100A CB6 15A S1 K2 K3 R1 START B1 IGN J7 6 J7 3 J7 7 J7 8 START INHIBIT RUN INHIBIT J7 4 J7 2 J7 5 K2 K3 DRIVE PEDAL SENSOR BAT BAT 3 J7 1 RELAY PCB 1...

Page 84: ...ine to run The Ignition Inhibit relay must not be energized This means that the Driver Box is not providing a ground to the coil through J1 34 The Oil Pressure Switch S28 must be open This switch is a single pole double throw SPDT switch When the oil pressure is too low the switch is in the inactivated state normally closed contact is closed When there is oil pressure the switch activates so that ...

Page 85: ...SC8000 Co onent ocations 1 and 2 Electrical Connectors Engine Ground Connection Oil Pressure Sensor DERYH RLO OWHU Coolant Temperature Sensor DERYH DOWHUQDWRU Governor Engine Speed Magnetic Pickup Woodward Governor and Throttle Actuator ...

Page 86: ...AE 10W or 10W 30 Diesel Lubricating Oil Note LWK WKH HPLVVLRQ FRQWURO QRZ LQ HIIHFW WKH DQG OXEULFDWLQJ RLOV KDYH EHHQ GHYHORSHG IRU XVH with a low sulfur fuel used in on road vehicle engines When an off road vehicle engine runs on a high sulfur fuel it is advisable to employ the CF CD or CE lubricating oil with a high total base number If the RU OXEULFDWLQJ RLO LV XVHG ZLWK D KLJK VXOIXU IXHO FKD...

Page 87: ...ooling System 7RRO RQWR WKH UDGLDWRU ÀOOHU QHFN WKHQ press the Air Switch The compressed air travelling through the Venturi Tube Assembly will pull a vacuum on the cooling system to remove air from the system Once the vacuum reading on the Gauge UHDFKHV DSSUR LPDWHO RQ the green scale release the Air Switch Note that this also a good opportunity to check for cooling system leaks 5 Continue to hold...

Page 88: ...ck into the canister until it is completely dry rou les ootin eneral rou les ootin Problem Cause Correction The yellow attention light and glow plug display icon will not go out Glow plug relay K4 coil over current fault code 14 displayed on the LCD Check K4 relay coil wiring for problems ORN GRN and WHT ORN Check coil resistance If less than 36 ohms replace Also see diesel glow plug starting circ...

Page 89: ... ot Cran Start n i it ctive Drive pedal sensor switch R1 not calibrated follow programming instructions to calibrate foot pedal sensor Drive pedal activated out of neutral out of the calibrated deadband range Remove foot from drive pedal Adjust or repair the Hydroback cable and or main piston propulsion pump linkage The control panel displays the critical fault icon showing code 38 See the eneral ...

Page 90: ...e engine will revert to idle See additional troubleshooting notes for control circuit details Component Current Amps Coil Ohms Actuator 1 1 5 Amps 3 2 ohms Pin Wire Color Function Voltage at 1300 RPM Voltage at 2200 RPM Voltage at 2400 RPM J2 30 on Driver Box VIO Input from Driver Box 0 0 12 VDC J2 29 on Driver Box GRA Input from Driver Box 0 12 VDC 0 SPEED 1 2400 RED B B S1 TO ENGINE FLYWHEEL MAG...

Page 91: ...VWLWXWH D QHZ ULYHU R PDLQ FRQWUROOHU DQG DVKERDUG 3DQHO 3 KHFN WKH VWDWXV ODPS RQ WKH JRYHUQRU IRU IDXOW FRGHV 5HIHUHQFH WKH ÁDVK FRGH WDEOH IRXQG RQ WKH APECS 3000 website 7HVW JRYHUQRU FRQWUROOHU DFWXDWRU RXWSXW YROWDJH DW GLIIHUHQW VSHHG VHOHFWLRQ PRGHV DSSUR LPDWH YDOXH 9 5 Check the continuity of the fuel control actuator wiring 6 Test the Fuel Solenoid Actuator VHH EHORZ IRU DQ RSHQ FLUFXLW...

Page 92: ... Bosch MD type mini pump QJLQH ULQJ RUGHU 1 3 4 2 Injection Timing 19 degrees before TDC Oil Capacity 5 5 qt 5 2L Oil Pan depth 4 9 12 4 cm Cooling Capacity 8 qt 7 5L Horsepower 46 gross 2800 RPM 41 Int 2400 RPM Engine Speeds Idle 1300 RPM Normal Run 2200 RPM High Output Turbo 2400 RPM Actuator Current 1 to 1 5 amps Coil Resistance 3 2 ohms Note Refer to the engine manufacturer s Operator and Serv...

Page 93: ...QGLWLRQ IRU WKH VWDUW LQKLELW LV LQ LWV QRQ LQKLELWHG VWDWH ÁRDW YROWDJH RI approximately 8V when referenced to B is measured when the key is in the start position When inhibited the signal is pulled to ground will read 0V and will prevent the engine from cranking This prevents the starter relay from being energized Note 7KH QRUPDO FRQGLWLRQ IRU WKH UXQ LQKLELW LV LWV QRQ LQKLELWHG VWDWH ÁRDW YROW...

Page 94: ...G HQJLQH UXQ F FOHV 7KH 0 FRQWUROV WKH YROWDJH WR WKH 3 XHO RFN RII GHYLFH 7KH 65 LV D WZR VWDJH UHJXODWRU WKDW LV D FRPELQDWLRQ YDSRUL HU SUHVVXUH UHJXODWLQJ GHYLFH 7KH 65 LV QRUPDOO FORVHG ZKHQ WKH HQJLQH LV QRW UXQQLQJ KHQ WKH HQJLQH LV FUDQNLQJ RU UXQQLQJ D SDUWLDO YDFXXP LV FUHDWHG LQ WKH IXHO OLQH ZKLFK FRQQHFWV WKH UHJXODWRU WR WKH 35 DQG 0L HU VVHPEO 7KLV SDUWLDO YDFXXP RSHQV WKH VHFRQG VW...

Page 95: ...o the IGN SW INPUT Note that if the Driver Box sends a RUN INHIBIT signal from J1 34 to the K2 RELA CONTROL SWITCH to open the switch no ground will be provided to the IGN relay coil K2 the K2 contacts will not close and no positive voltage will be sent to the IGN SW INPUT The K3 RELA CONTROL SWITCH must be closed to provide a ground to the START relay coil K3 This closes the K3 relay contacts to ...

Page 96: ...ow LP Pressure Switch S5 PXVW EH RSHQ WR LQGLFDWH DGHTXDWH 3 IXHO VXSSO 3 HQJLQHV RQO Note LPG engines will continue to run for a few seconds after the key switch is turned off This burns DQ IXHO UHPDLQLQJ LQ WKH HQJLQH WR SUHYHQW EDFNÀUHV WKH QH W WLPH WKH HQJLQH LV VWDUWHG KHQ WKH key switch is turned off the Engine System switches off the fuel supply to the engine but keeps the ignition system ...

Page 97: ...ion Alternator OHFWURQLF 7KURWWOH RG Cam Position Sensor Connector 1 RQQHFWRU UDQN 3RVLWLRQ 6HQVRU 35 LUHFW OHFWURQLF 3UHVVXUH 5HJXODWRU LDJQRVWLF RQQHFWRU Engine Control Module Engine Coolant Sensor XHO RFNRII 6ROHQRLG Ground Ignition Coils QRFN 6HQVRU 3 XDO 6WDJH 3UHVVXUH 5HJXODWRU 0L HU VVHPEO Oil Pressure Switch Post Catalyst O Sensor 3RZHU 5HOD QVLGH QJLQH XVH 5HOD R Pre Catalyst O Sensor Sta...

Page 98: ...n ine S ste 8 Service Manual SC8000 Alternator Oil Filter Oil Pressure Switch Starter i ure i t Si e i ure o Diagnostic Connector TMAP Sensor Engine Fuse Relay Box Ignition Coils ...

Page 99: ...ne Coolant Sensor i ure o ear Cam Position Sensor Direct Electronic Pressure Regulator DEPR Mixer Assembly i ure en Sensors Pre Catalyst O2 Sensor Oil Filter Post Catalyst O2 Sensor Right Rear Wheel Fuel Lockoff Solenoid LP Dual Stage Pressure Regulator i ure o e t ront ...

Page 100: ...f necessary Check LPG tank setting condition if necessary Check LPG fuel connector Change engine oil 5HSODFH RLO OWHU FDUWULGJH Check LPG fuel hose and clamp bands Clean spark plugs KHFN IXHO OWHU Check fan belt tension and for damage Check battery electrolyte level 5HSODFH IXHO OWHU if necessary Check LPG tank setting condition Check radiator hoses and clamp bands Check PCV valve Check coolant ho...

Page 101: ... 3 FODVVLÀFDWLRQ 6 RU KLJKHU DQG EH VXLWHG WR WKH DPELHQW WHPSHUDWXUH DV OLVWHG EHORZ 5HIHU WR WKH HQJLQH PDQXIDFWXUHU V VHUYLFH PDQXDOV IRU RLO FDSDFLWLHV DQG DGGLWLRQDO HQJLQH VSHFLÀFDWLRQV 5HSODFH WKH RLO ÀOWHU ZLWK HYHU RLO FKDQJH Temperature Range Oil Weight Above 77 F 25 C SAE30 SAE10W 30 or SAE15W 40 32 F to 77 F 0 C to 25 C SAE20 or SAE 10W 30 4 F to 32 F 20 C to 0 C SAE10 or SAE 10W 30 n ...

Page 102: ...g System 7RRO RQWR WKH UDGLDWRU ÀOOHU QHFN WKHQ press the Air Switch The compressed air travelling through the Venturi Tube Assembly will pull a vacuum on the cooling system to remove air from the system Once the vacuum reading on the Gauge UHDFKHV DSSUR LPDWHO RQ the green scale release the Air Switch Note that this also a good opportunity WR FKHFN IRU FRROLQJ V VWHP OHDNV 5 Continue to hold the ...

Page 103: ...GYDQFH PDFKLQHV XVLQJ WKH 0 DQG 0 HQJLQHV RX ZLOO QHHG D QHZ YHUVLRQ RI WKH 3 VRIWZDUH WR ZRUN ZLWK WKH XERWD WG1605 engine along with the correlating password The software password and installation instructions FDQ DOO EH GRZQORDGHG IURP XVWRPHU RQHµDW ZZZ DGYDQFH XV FRP 0RVW RU DOO HQJLQH WURXEOHVKRRWLQJ LV FRYHUHG LQ XERWD PDQXDOV 7KHUH DUH VRPH WKLQJV VSHFLÀF WR WKH SW8000 engine application w...

Page 104: ...emperature is too high Refer to the Engine Overheating Problems section below The oil pressure has dropped too low Refer to the Loss of Oil Pressure Protection section below Engine Management System Problem Consult Diagnosis Manual ECM System WG1605 SGI n ine ver eatin ro le s 8VH WKH FKHFNOLVW EHORZ DV D JXLGH WR WKRURXJKO FKHFN WKH HQJLQH FRROLQJ V VWHP KHFN WKH FRRODQW OHYHO LQ WKH RYHUÁRZ WDQN...

Page 105: ...ystem Forced Lubrication by Trochoid Pump Oil Pressure Indication Electrical Type Switch Engine Oil Pressure Hot DFWRU 6SHFL FDWLRQ Allowable Limit At Idle Speed 49 kPa 0 50 kgf cm2 7 1 psi At Rated Speed 196 to 441 kPa 2 00 to 4 49 kgf cm2 28 5 to 63 9 psi 147 kPa 1 50 kgf cm2 21 3 psi Lubricating Filter Full Flow Paper Filter Cartridge Type Cooling System Type Pressurized Radiator Forced Circula...

Page 106: ...corded cannot serve DV WUXH VSHFLÀFDWLRQVµ WKH PD KHOS RX UHFRJQL H ZKDW QRUPDO ORRNV OLNH DQG JLYH RX VRPH VWDQGDUG RI comparison n ine acuu N3D DW ZDUP LGOH 0HDVXUHG DW DSSUR LPDWHO IW HOHYDWLRQ uel ressure 3ULPDU SSUR LPDWHO SVL N3D 6HFRQGDU SSUR LPDWHO SVL N3D nition ut ut 9 ZKLOH FUDQNLQJ Ca Sensor an Cran Sensor scillosco e attern ...

Page 107: ...Diagnostic Communication Cable and software p n 56305647 Note The Ecom cable is used but the software on the CD is for the GM engines New software and a new password must be downloaded from Customer Zone to use on the Kubota engine Cooling System Tool ...

Page 108: ... low speed accessory pump is actually two separate pumps in one unit 1 20 and 0 58 CIR and powers the other machine components A system of electrically controlled solenoid valves directs the hydraulic oil to the various system components to perform the needed scrubbing sweeping and solution recovery functions Note The electrical wiring diagrams schematics use an followed by a number to identify th...

Page 109: ... RSHQ WR LQGLFDWH WKDW WKH K GUDXOLF ÀOWHU LV QRW SOXJJHG Fuse 100A Relay Power Dashboard Panel Driver Box J2 23 VACC5 J2 12 VACC4 J2 8 J2 5 J2 6 J2 22 J2 10 J2 7 J2 24 J2 26 J2 4 J2 3 J2 2 CB4 Circuit Breaker 20A K1 Battery 12 VDC F1 Circuit Breaker 15A CB6 CB5 Circuit Breaker 10A Vacuum Fan S1 Squeegee Down S2 L1 L2 Squeegee Up S3 L3 Valve Main Solution L10 Valve Right Solution L11 Scrub Brush S...

Page 110: ...raulic S ste 0 Service Manual SC8000 raulic Sc e atic ...

Page 111: ... Reservoir Assembly Steering Pump Assembly Squeegee Cylinder Assembly Drive Motor Assembly Pump Assembly Low speed Valve Block Assembly Steer Cylinder Assembly Scrub Lift Cylinder Assembly Oil Cooler Assembly Pump Assembly Hydraulic Motor Assembly Hydraulic Motor Assembly Oil Filter Front ...

Page 112: ...ly are located as shown raulic Motors The Vacuum Fan Motor Assembly Steering Pump Assembly Drive Motor Assembly and Main Brush Motor Assembly are located as shown Scrub Lift Cylinder Assembly Squeegee Cylinder Assembly Steer Cylinder Assembly Steering Pump Assembly Drive Motor Assembly Main Brush Motor Assembly Vacuum Fan Motor Assembly ...

Page 113: ...he engine output shaft and are located as shown The Accessory Pump Assembly includes the two auxiliary hydraulic pumps raulic alve loc Mani ol The Hydraulic Valve Block Manifold is located on the back of the machine as shown Propulsion transport Piston Pump Assembly Accessory Pump Assembly Front Bottom View Hydraulic Valve Block Manifold ...

Page 114: ...raulic S ste Service Manual SC8000 The Solenoid Valves and System Relief Valves are located on the Hydraulic Valve Block Manifold as shown S2 top S3 bottom S1 S4 S7 ...

Page 115: ...ntrols the right side scrub sweep motor s S8 L8 is located above the front end of the Scrub Deck The Right Side Scrub Lift Cylinder Solenoid Valve S9 L9 controls the side scrub lift cylinder S9 L9 is located inboard of the Right Scrub Assembly Scrub Deck S8 L8 S9 L9 Right Scrub Assembly ...

Page 116: ...ms R1 Solenoid coil and valve cartridge pressure relief vacuum fan 2700 psi R2 Solenoid coil and valve cartridge pressure relief scrub brush s 2700 psi L8 S8 Solenoid coil and valve cartridge right scrub sweep system coil 8 ohms L9 S9 Solenoid coil and valve cartridge right scrub lift cylinder coil 8 ohms Note The combined electrical solenoid and hydraulic valve cartridge assembly can be serviced ...

Page 117: ... be higher than 12 7 mm above the bottom of WKH ÀOOHU VFUHHQ 3 KDQJH DQG ÁXVK WKH RLO LI PDMRU contamination from a mechanical failure occurs raulic il lter 1 Release the latches and tip the Hydraulic Oil Cooler out away from the machine 2 Use a pan or other suitable container to catch any oil that may leak out when you remove the Hydraulic Oil Filter 3 Unscrew and remove the Hydraulic Oil Filter ...

Page 118: ...rming poorly Refer to the 6SHFL FDWLRQV WDEOHV WR GHWHUPLQH WKH PRWRU 530 I WKH PRWRU VSHHG LV FRUUHFW WKH SXPS LV SURGXFLQJ WKH FRUUHFW DPRXQW RI RLO ÁRZ RZHYHU WKLV GRHV QRW PHDQ that if a motor is running too slow the problem is in the pump 7KH IROORZLQJ LQIRUPDWLRQ VKRXOG EH XVHG WR FKHFN IRU FRUUHFW PRWRU 530 V VWHP SUHVVXUH DQG UHOLHI YDOYH VHWWLQJV 7KH UHDGLQJV DUH QRPLQDO ÀJXUHV DQG WKHUH ...

Page 119: ...reading is above the bypass psi but is below the operational psi FKHFN WKH EURRP DGMXVWPHQW DQG ZHDU Check the individual system rou les ootin sections of this manual for additional information TP 1 TP 3 TP 2 Upper Test Port TP 5 on the Scrub Lift Cylinder Lower Test Port TP 4 on the Scrub Lift Cylinder Accessory Pump Test Ports TP 5 TP 4 Scrub Lift Cylinder Test Ports TP 4 TP 5 ...

Page 120: ...ting Forward 3500 PSI Reverse 2500 PSI Charge Relief 200 250 PSI Dual Low speed Accessory Hydraulic Pump Ratings Displacement Front 0 58 CID Rear 1 20 CID Speed 3200 RPM max Rated Pressure 3000 PSI Max Pressure 3500 PSI 5HOLHI 3UHVVXUH 36 RQ SULRULW ÀRZ Accessory Pump 1 Circuits Displacement Cu In GPM RPM In RPM Out PSI Relief PSI Accessory pump 1 engine 2200 RPM no systems running test port TP1 5...

Page 121: ...2200 RPM no systems running test port TP3 1 20 3 0 2200 296 1500 Steering unit driving and turning 4 5 500 7KH E SDVV SUHVVXUH LV WKH SUHVVXUH UHDGLQJ ZLWK QR PRWRU RU F OLQGHU RSHUDWLQJ ÁRZ WKURXJK Scrub brush system hydraulic pressure under load setting 3 maximum scrub pressure Test Port Pressure Type Controlled by Pressure Setting PSI Scrub lift cylinder 1 50 x 5 00 engine at 2200 RPM TP4 Lift ...

Page 122: ... X Scrub Brush Pressure Setting 5HJXODU X X X Scrub Brush Pressure Setting HDY X X X Scrub Brush Pressure Setting WUHPH X X X Right Side Scrub Brush Pressure Settings 1 2 and 3 X X X X Scrub Brushes Off Right Scrub On X X Dual Side Broom Sweep On X X SAE JIC 37 Flare Fitting Torque Chart SAE Dash Thread Size Torque in ft lbs FFWR 4 7 16 20 11 2 5 1 2 20 14 2 6 9 16 18 20 1 1 4 8 3 4 16 43 1 10 7 8...

Page 123: ...raulic S ste Service Manual SC8000 S ecial ools Hydraulic test gauge w connector 3000 psi range p n 56504516 ...

Page 124: ...ion Detergent Bottles Back up Alarm Kit The Back up Alarm Kit includes the Back up Alarm Unit Pigtail Wire Assembly and mounting hardware Warning Beacon Kit The Warning Beacon Kit mounts directly on the machine and is designed for machines without an overhead guard ...

Page 125: ... onto the overhead guard Brake Signal Light Kit The Brake Signal Light Kit includes amber front signal lights red rear stop signal lights and wiring harnesses Extended Scrub Kit The Extended Scrub Kit includes the H WHQGHG VFUXE SXPS ÀRDW VZLWFK and strainer and the electrical and solution quick disconnects Fire Extinguisher Kit ...

Page 126: ... Description Illustration Foot Guard Kit Roller Bumper Kit Note that the right side roller bumper is standard on 60 and 67 with right side scrub Wash Hose Kit shown mounted behind Operator seat Overhead Guard Kit warning beacon sold separately ...

Page 127: ...tions an ccessories Service Manual SC8000 Description Illustration Overhead Guard Canopy Kit overhead guard sold separately Rear Bumper Kit Recovery Tank Clean out Kit Recovery Tank Debris Tray Kit ...

Page 128: ...ons an ccessories 8 Service Manual SC8000 Description Illustration Drain Hose Extension Remote Foot actuated Horn Switch Kit 6ROXWLRQ XWR OO LW Right hand Dual Armrest Kit Seat Belt Kit for Standard Seat ...

Page 129: ...nual SC8000 Description Illustration Deluxe Suspension Seat Kit includes right hand armrest and seat belt Under Hood Light Kit includes trouble light with magnetic base on an extendable cable Vacuum Wand Kit shown mounted on machine ...

Page 130: ... PRWLRQ VWRSV 7KH YDFXXP IDQ PRWRU FDQ DOVR EH VZLWFKHG RQ LQGHSHQGHQW RI WKH VFUXE V VWHP E SUHVVLQJ WKH YDFXXP VZLWFK ROG VW OH FRQWURO SDQHO RU WKH YDFXXP ZDQG VZLWFK QHZ VW OH FRQWURO SDQHO 7KLV LV XVHG WR SLFN XS VROXWLRQ DOUHDG RQ WKH ÁRRU RU ZKHQ XVLQJ D ZDQG RQ WKH VTXHHJHH KRVH Refer to the S uee ee S ste VHFWLRQ IRU PRUH LQIRUPDWLRQ RQ WKH VTXHHJHH FRPSRQHQWV DQG RSHUDWLRQ ecover S ste i...

Page 131: ...rive Pedal Sensor R1 WKDW WKH GULYH SHGDO KDV EHHQ PRYHG IURP WKH QHXWUDO SRVLWLRQ The Recovery Full Switch S2 PXVW EH FORVHG UHFRYHU WDQN QRW IXOO ecover S ste raulic ia ra Q HOHFWULF VROHQRLG S1 FRQWUROV WKH K GUDXOLF Vac Fan Control Valve ZKLFK FRQWUROV WKH K GUDXOLF RLO ÁRZ WR WKH YDFXXP IDQ PRWRU acuu an Q WKH QRUPDOO RII FRQGLWLRQ WKH S1 Vacuum Fan Control Valve LV GH HQHUJL HG Solenoid Off ...

Page 132: ...he Vacuum Fan PRWRU WKHQ WR WKH Reservoir The Pressure Relief Valve ZLOO RSHQ WR DOORZ WKH RLO WR ÁRZ EDFN LQWR WKH Propulsion Pump Charge Port LI D KLJK SUHVVXUH FRQGLWLRQ RFFXUV LQ WKH K GUDXOLF OLQHV EHIRUH WKH RLO HQWHUV WKH WDQN VWDOOHG PRWRU SOXJJHG KRVH HWF Vacuum Fan Aux Pump Reservoir Pressure Relief Valve S1 Vac Fan Control Valve Solenoid On Return through Filter to Propulsion Pump Charg...

Page 133: ...OO WKH ZDVWHZDWHU IURP WKH VTXHHJHH DQG Squeegee Hose Assembly WKURXJK the Cuffed Hose Assembly DQG LQWR WKH Recovery Tank The Recovery Tank Cover Assembly RSHQV WR DOORZ DFFHVV WR WKH LQVLGH RI WKH Recovery Tank DQG WR WKH Vacuum Fan Assembly DQG KRVHV 7KH Recovery Tank Cover Assembly VHDOV RQ the Recovery Tank ZKHQ FORVHG WR PDLQWDLQ WKH YDFXXP LQVLGH RI WKH Recovery Tank The Drain Hose DOORZV R...

Page 134: ...an assembly and the recovery tank and tighten replace as necessary Check the gaskets and replace as necessary Check the recovery tank for damage Restrictions due to built up debris in the squeegee tool YDFXXP KRVHV RU ÀRDW FDJH 1 KHFN WKH VTXHHJHH WRRO YDFXXP KRVHV DQG ÀRDW cage for any accumulated dirt or debris and clean as necessary 2 KHFN WKH YDFXXP V VWHP DLUÀRZ SDWKZD ZKHUHYHU WKH DLUÀRZ LV ...

Page 135: ...an UDLQ WKH UHFRYHU WDQN Note If your machine is equipped with an extended scrub system you must disconnect the Float Switch Quick disconnect and Solution Quick disconnect Coupler before you can remove the recovery tank Refer to the Solution S ste unctional escri tion ten e Scru S ste subsection Press the Skirt Latch DQG VZLQJ WKH OHIW KDQG Side Skirt Assembly out of the ZD LIW DQG SURS RSHQ WKH U...

Page 136: ...Tank WKHQ FDUHIXOO VZLQJ WKH Recovery Tank GRZQ DQG OLIW LW RII RI WKH PDFKLQH Note When you reinstall the ecover an set the an onto the two Mountin ins on the frame then tilt the an up and reattach the Ca le sse l Front Mounting Pin Rear Mounting Pin Cable Assembly Recovery Tank ...

Page 137: ...tation Clockwise as viewed from shaft end Pressure Ratings 3000 PSI Continuous 4000 PSI Intermittent Displacement 0 129 CIR Vacuum Water Lift Sealed 33 7 inches H2 O 2200 RPM Vacuum Fan Solenoid Valve L1 Current 1 5 Amps Nominal Coil Resistance 8 ohms S ecial ools Vacuum water lift gauge p n 56205281 ...

Page 138: ...k pressure C lin rical Scru S ste irin ia ra Circuit escri tion For the scrub system to work the key switch must be on the engine must be running and the Driver Box must receive a signal from the Dashboard Panel via the CAN Bus that the Operator has actuated the scrub system Fuse 100A Relay Power Dashboard Panel Driver Box J2 7 J2 24 J2 26 J2 4 CB4 Circuit Breaker 20A K1 Battery 12 VDC F1 Circuit ...

Page 139: ... 24 to the Scrub Pressure Proportional Up valve S7 to provide the down scrub pressure selected by the Operator Note that the Driver Box ground signals to S5 and S7 are pulse width modulated PWM signals which open the valves proportionally to produce the appropriate hydraulic pressures on both the piston and rod ends of the Scrub Lift Cylinder This combination of up and down forces on the lift cyli...

Page 140: ...are on the Accessory Pump 1 20 CID sends oil to the Priority Flow Divider which directs the oil to the energized closed Scrub Brush Valve L4 The oil is directed past the Scrub Brush Valve L4 and through the two Scrub Brush Motors causing them to rotate The oil travels from the Scrub Brush Motors through the Oil Cooler and Filter then to the Charge Circuit for the Main Piston propulsion Pump Priori...

Page 141: ... L6 valve The Brush Proportional Up L7 valve provides adequate oil pressure to the bottom port on the Scrub Lift Cylinder through the Scrub Cylinder Lock L6 valve to raise the scrub deck The de energized Scrub Brush Proportional Down L5 valve FORVHV RII WKH RLO ÁRZ WR WKH WRS port on the Scrub Lift Cylinder Any oil from the top port on the Scrub Lift Cylinder is directed to the Reservoir The de en...

Page 142: ...n the Scrub Lift Cylinder The energized Scrub Brush Proportional Down L5 valve provides oil pressure ranging from approximately 333 to 499 psi depending on the scrub pressure selected to the top port on the Scrub Lift Cylinder The energized Scrub Cylinder Lock L6 valve opens to allow ELGLUHFWLRQDO RLO ÁRZ WKURXJK WKH valve Note The pressure differential between what the Scru rus ro ortional valve ...

Page 143: ...tside of the Brush Housing Weldment The removable Hopper collects any dirt or debris picked up by the scrub brushes The Screen Weldment sits in the Hopper and is connected to a vacuum hose that removes any accumulated water from the Hopper The Screen Weldment can be removed from the Hopper for cleaning Idler Assembly Right Skirt Assembly Hopper Left Skirt Assembly Scrub Lift Cylinder Assembly Driv...

Page 144: ...nd WHT VIO and L7 251 DQG 251 5 KHFN FRLO UHVLVWDQFH I OHVV WKDQ RKPV UHSODFH OVR VHH PDLQ VFUXE RQ DQG ULJKW VFUXE brushes deck pressure electrical ladder detail and IXUWKHU VSHFV Scrub brush motor solenoid over current fault code 13 displayed Check L4 solenoid coil wiring for problems ORN DQG 251 8 KHFN FRLO UHVLVWDQFH I OHVV WKDQ RKPV UHSODFH OVR VHH PDLQ VFUXE RQ DQG VLGH VZHHS ULJKW VFUXE HOH...

Page 145: ...nical damage to the deck lift cylinder and deck lift OLQNDJH Remove the S5 and S7 scrub lift cylinder valve FDUWULGJHV IURP WKH PDQLIROG QVSHFW FOHDQ DQG RSHUDWH WKH FDUWULGJHV RXWVLGH RI WKH PDQLIROG I WKH FDUWULGJHV IXQFWLRQ 2 UHLQVWDOO I QRW UHSODFH DV QHFHVVDU Connect a hydraulic pressure gauge at the test ports TP4 and TP5 and check the system operating pressures See the table below for VSHFL...

Page 146: ...t be on The engine must be running The scrub on mode must be selected on the Dashboard Panel Component Current Amps Coil Resistance Ohms L5 PSV RKPV PSV RKPV L9 PSV RKPV 12 12 L6 B B from K1 Power Relay 12V DC B OUTPUT TOUCH PAD DASHBOARD PANEL CB4 20A ORN B B RED VIO DRIVER BOX PIN J2 26 MAIN SCRUB LIFT CYLINDER DOWN WHT VIO SCRUB CYLINDER LOCK PIN J2 4 YEL BLU B OUTPUT L5 S1 KEY SWITCH 1 L9 ...

Page 147: ...Width Modulated Component Current Amps Coil Resistance Ohms L5 PSV RKPV PSV RKPV L7 PSV RKPV Pressure Setting L5 Coil Amp draw readings 10 1 DPSV varies with scrub setting selected 3 Pressure Setting L7 Coil Amp draw readings 10 1 WR DPSV all three scrub pressure settings 3 L6 B B from K1 Power Relay B OUTPUT PWM TOUCH PAD DASHBOARD PANEL CB4 20A ORN L7 B B RED VIO DRIVER BOX PIN J2 26 SCRUB PRESS...

Page 148: ...be running The scrub on mode must be selected on the Dashboard Panel The drive pedal must be activated moved from the neutral position Component Current Amps Coil Resistance Ohms L4 PSV RKPV PSV RKPV 12 12 PIN J2 7 L4 B B from K1 Power Relay B OUTPUT TOUCH PAD DASHBOARD PANEL CB4 20A BLK WHT ORN PIN J2 2 B OUTPUT L8 SIDE SWEEP RIGHT SCRUB ORN BLU B B DRIVER BOX MAIN SCRUB BRUSH S1 KEY SWITCH 1 ...

Page 149: ...portional Up Solenoid Valve L7 XUUHQW DPSV 1RPLQDO RLO 5HVLVWDQFH RKPV 9ROWDJH 5DQJH 3 0 9 Main Broom Motors LVSODFHPHQW 5 Scru ressures Proportioning Valve Pressure Type Scrub Pressure Setting Hydraulic Pressure at Test Port TP4 Valve Solenoid Coil Current Draw S7 Scrub Pressure Up 1 750 to 774 psi WR DPSV all three scrub pressure settings WR SVL 3 745 to 779 psi Proportioning Valve Pressure Type...

Page 150: ...Scru S ste C lin rical 0 Service Manual SC8000 S ecial ools GUDXOLF WHVW JDXJH Z FRQQHFWRU SVL UDQJH S Q ...

Page 151: ...e Scru S ste irin ia ra Circuit escri tion For the right side scrub system to work the key switch must be on the engine must be running and the Driver Box must receive a signal from the Dashboard Panel via the CAN Bus that the Operator has actuated the main and right side scrub systems Fuse 100A Relay Power Dashboard Panel Driver Box J2 7 J2 24 J2 26 J2 4 CB4 Circuit Breaker 20A K1 Battery 12 VDC ...

Page 152: ...OLIW cylinder The Driver Box must provide the appropriate ground signal from pin J2 26 to the Scrub Pressure Proportional Down valve S5 and the appropriate ground signal from pin J2 24 to the Scrub Pressure Proportional Up valve S7 to extend the right side scrub lift cylinder and lower the right side scrub brush Once the right side scrub brush is retracted upward after scrubbing the Side Scrub Lif...

Page 153: ...Cylinder D to the lower chamber on the Side Scrub Lift Cylinder to raise the right side scrub brush The Side Scrub Lift Valve L9 directs the oil from the upper chamber on the Side Scrub Lift Cylinder E to the oil reservoir When the engine is switched off the de energized Scrub Cylinder Lock L6 Valve holds the oil pressure from the bottom chambers on both the Side Scrub Lift Cylinder and Scrub Lift...

Page 154: ...The Right Side Scrub Lift Cylinder extends and retracts the Right Scrub Assembly in conjunction with the cylindrical scrub deck The Right Side Scrub Motor is plumbed into the hydraulic lines for the cylindrical deck brush motors and switches on and off with the cylindrical deck motors The Right Solution Solenoid Valve L11 controls the VROXWLRQ ÁRZ WR WKH Right Scrub Assembly E C D Side Scrub Lift ...

Page 155: ...8 L8 controls the right side scrub motor S8 L8 is located above the front end of the Scrub Deck The Right Side Scrub Lift Cylinder Solenoid Valve S9 L9 controls the side scrub lift cylinder S9 L9 is located inboard of the Right Scrub Assembly Scrub Deck S8 L8 Right Scrub Assembly S9 L9 ...

Page 156: ...en or shorten the Rod End Assembly as necessary to get the correct brush DQJOH WR WKH ÁRRU Note The nominal factory dimension between the Rod End stud centers is 7 5 06 190 5 mm 1 5 mm 4 Make sure the threaded stud on the Rod End will align with the matching hole in the Mounting Tab then tighten the Jam Nut 5 Reinstall the Rod End into the Mounting Tab 6 Run the brush up and down to check for corr...

Page 157: ...enoid valve over current IDXOW FRGH GLVSOD HG KHFN VROHQRLG FRLO ZLULQJ IRU SUREOHPV 251 DQG 8 KHFN FRLO UHVLVWDQFH I OHVV WKDQ RKPV UHSODFH OVR VHH PDLQ VFUXE DQG ULJKW VLGH VFUXE VROXWLRQ YDOYHV DQG SXPS HOHFWULFDO ODGGHU GHWDLO 5LJKW VLGH VFUXE VZHHS motor solenoid valve over FXUUHQW IDXOW FRGH GLVSOD HG KHFN VROHQRLG FRLO ZLULQJ IRU SUREOHPV 251 DQG 7 KHFN FRLO UHVLVWDQFH I OHVV WKDQ RKPV UHSO...

Page 158: ... The engine must be running The scrub on mode and side broom scrub must be selected on the Dashboard Panel Component Current Amps RLO 5HVLVWDQFH 2KPV L5 PSV RKPV PSV RKPV L9 PSV RKPV 12 12 L6 B B from K1 Power Relay 12V DC B OUTPUT TOUCH PAD DASHBOARD PANEL CB4 20A ORN B B RED VIO DRIVER BOX PIN J2 26 MAIN SCRUB LIFT CYLINDER DOWN WHT VIO SCRUB CYLINDER LOCK PIN J2 4 YEL BLU B OUTPUT L5 S1 KEY SWI...

Page 159: ... The scrub on mode and side broom scrub must be selected on the Dashboard Panel The drive pedal must be activated moved from the neutral position Component Current Amps Coil Resistance Ohms L4 PSV RKPV PSV RKPV 12 12 PIN J2 7 L4 B B from K1 Power Relay B OUTPUT TOUCH PAD DASHBOARD PANEL CB4 20A BLK WHT ORN PIN J2 2 B OUTPUT L8 SIDE SWEEP RIGHT SCRUB ORN BLU B B DRIVER BOX MAIN SCRUB BRUSH S1 KEY S...

Page 160: ...V 1RPLQDO RLO 5HVLVWDQFH RKPV 6LGH 6ZHHS 6FUXE 6ROHQRLG 9DOYH XUUHQW DPSV 1RPLQDO RLO 5HVLVWDQFH RKPV 6LGH 6FUXE LIW 6ROHQRLG 9DOYH XUUHQW DPSV 1RPLQDO RLO 5HVLVWDQFH RKPV Right Side Scrub Motor LVSODFHPHQW 5 5RWDWLRQ ORFNZLVH DV YLHZHG IURP VKDIW HQG 3UHVVXUH 3RUW S ecial ools GUDXOLF WHVW JDXJH Z FRQQHFWRU SVL UDQJH S Q ...

Page 161: ...WKH VFUXE V VWHP LV GLVDEOHG QR VROXWLRQ ZLOO ÁRZ WR WKH Scrub Brushes UHJDUGOHVV RI GULYH SHGDO RU VFUXE GHFN SRVLWLRQ 7KH RSHUDWRU FDQ HQDEOH WKH VROXWLRQ V VWHP LQGHSHQGHQW RI WKH VFUXE V VWHP WR SUH ZHW WKH ÁRRU EHIRUH HQDEOLQJ WKH VFUXE DQG RU UHFRYHU V VWHPV 7KH VROXWLRQ V VWHP DOVR SURYLGHV VROXWLRQ WR WKH IROORZLQJ RSWLRQDO HTXLSPHQW LI WKH PDFKLQH LV VR HTXLSSHG 5LJKW VLGH VFUXE EUXVK Dus...

Page 162: ...Detergent Supply Line IURP WKH Detergent Cartridge is split into two OLQHV RQH IHHGLQJ HDFK Detergent Pump The two OLQHV IURP WKH Detergent Pumps merge into one Detergent Supply Line ZKLFK LV WKHQ FRQQHFWHG WR the Solution Hose upstream RI WKH Main Solution Solenoid Valve The Tee 1 E WKH Main Solution Solenoid Valve SURYLGHV VROXWLRQ WR WKH ULJKW IURQW VFUXE EUXVK LI WKH PDFKLQH LV VR HTXLSSHG The...

Page 163: ...W WKH VROXWLRQ WDQN LV HPSW I WKH H WHQGHG VFUXE V VWHP LV FRQÀJXUHG WR WKH USE AN TIME PRGH WKH VROXWLRQ WDQN HPSW VZLWFK 6 ZLOO KDYH QR HIIHFW 1RWH WKDW ZKHQ WKH PDFKLQH LV LQ WKH H WHQGHG VFUXE PRGH WKH Solution Pump ZLOO VZLWFK RII WKH Extended Scrub Pump ZLOO VZLWFK RQ DQG WKH GHWHUJHQW SXPSV ZLOO FRQWLQXH WR DGG GHWHUJHQW WR WKH UHFRYHUHG ZDWHU The Float Switch uick disconnect and Solution u...

Page 164: ... Pump M8 to pump solution IURP WKH VROXWLRQ WDQN WR the hose and Wash Hose Nozzle ORFDWHG EHKLQG the Operator seat The wash hose kit operates independently and does QRW UHTXLUH WKH 2SHUDWRU WR DFWXDWH WKH VHDW VZLWFK SUHVVXUH VZLWFK RQ WKH Wand Pump ZLOO VZLWFK RQ the Wand Pump when the Wash Hose Nozzle is opened and the solution pressure LQ WKH KRVH GURSV EHORZ psi When the Wash Hose Nozzle LV FO...

Page 165: ... 3 CAN J1 2 CAN J1 27 J1 5 J6 3 CAN J6 1 B J6 2 B J6 4 CAN Twisted Pair Twisted Pair 1 87 30 2 1 2 1 2 Switch Seat Switch Recovery Full opens when the recovery tank is full 1 2 S2 S30 J1 10 J1 31 J1 11 1 3 2 Drive Pedal Sensor 5K Ohm R1 J3 18 J3 23 J3 2 J2 35 J2 22 J2 10 J3 21 J3 22 CB4 Circuit Breaker 20A CB5 Circuit Breaker 10A CB2 Circuit Breaker 20A M5 M Pump Mist optional M8 M Pump Wand optio...

Page 166: ...ator has DFWXDWHG WKH VFUXE RU VROXWLRQ V VWHP The Driver Box PXVW UHFHLYH D VLJQDO IURP WKH Drive Pedal Sensor R1 WKDW WKH GULYH SHGDO KDV EHHQ PRYHG IURP WKH QHXWUDO SRVLWLRQ The Solution Empty Switch S3 PXVW EH RSHQ VROXWLRQ WDQN QRW HPSW Fuse 100A Relay Power Dashboard Panel Driver Box K1 Battery 12 VDC F1 Circuit Breaker 15A CB6 K1 B1 B 3 B Relay Power J2 1 Ignition_KeyPos J1 12 S1 Switch Ign...

Page 167: ...RQG Detergent Pump WXUQLQJ RQ HQFH DQ LQWHUYDO RI LQGLFDWHV WKDW RQH SXPS VKRXOG WXUQ RQ ZLWKRXW GHOD ZKHQ WKH RWKHU SXPS WXUQV RII 7KH QWHUYDO 7LPH LV ZKDW FRQWUROV WKH FRPELQHG GHWHUJHQW ÁRZ UDWH IURP ERWK SXPSV DQG FRPHV IURP D ORRNXS WDEOH EDVHG RQ WKH FXUUHQW VROXWLRQ ÁRZ UDWH DQG detergent ratio 7KH IROORZLQJ FRQGLWLRQV PXVW EH PHW IRU WKH Detergent Pumps WR RSHUDWH 7KH GHWHUJHQW V VWHP PXVW...

Page 168: ...tor has DFWXDWHG WKH VFUXE RU VROXWLRQ V VWHP The Driver Box PXVW UHFHLYH D VLJQDO IURP WKH Drive Pedal Sensor R1 WKDW WKH GULYH SHGDO KDV EHHQ PRYHG IURP WKH QHXWUDO SRVLWLRQ Fuse 100A Relay Power Dashboard Panel Driver Box K1 Battery 12 VDC F1 Circuit Breaker 15A CB6 K1 B1 B 3 B Relay Power J2 1 Ignition_KeyPos J1 12 S1 Switch Ignition J1 3 CAN J1 2 CAN J6 3 CAN J6 1 B J6 2 B J6 4 CAN Twisted Pa...

Page 169: ...FUXE DQG VLGH VFUXE V VWHPV The Driver Box PXVW UHFHLYH D VLJQDO IURP WKH Drive Pedal Sensor R1 WKDW WKH GULYH SHGDO KDV EHHQ PRYHG IURP WKH QHXWUDO SRVLWLRQ Fuse 100A Relay Power Dashboard Panel Driver Box K1 Battery 12 VDC F1 Circuit Breaker 15A CB6 K1 B1 3 B Relay Power J2 1 Ignition_KeyPos J1 12 S1 Switch Ignition J1 3 CAN J1 2 CAN J6 3 CAN J6 1 B J6 2 B J6 4 CAN Twisted Pair Twisted Pair 1 87...

Page 170: ...SV WR SVL KHQ WKH ZDVK KRVH QR OH LV FORVHG DQG WKH SUHVVXUH LQ WKH ZDVK KRVH UHDFKHV SVL WKH SUHVVXUH VZLWFK VKXWV RII WKH Wand 3XPS 7KH NH VZLWFK PXVW EH RQ IRU WKH DQG 3XPS WR RSHUDWH Fuse 100A Relay Power Driver Box K1 Battery 12 VDC F1 Circuit Breaker 15A CB6 B1 3 B Ignition_KeyPos J1 12 S1 Switch Ignition Pressure Switch 1 87 30 2 1 2 J3 23 CB2 Circuit Breaker 20A Bat J1 18 M8 M Pump Wand op...

Page 171: ...G WKH VLGH EURRPV The Driver Box PXVW UHFHLYH D VLJQDO IURP WKH Drive Pedal Sensor R1 WKDW WKH GULYH SHGDO KDV EHHQ PRYHG IURP WKH QHXWUDO SRVLWLRQ Fuse 100A Relay Power Dashboard Panel Driver Box K1 Battery 12 VDC F1 Circuit Breaker 15A CB6 K1 B1 3 B Relay Power J2 1 Ignition_KeyPos J1 12 S1 Switch Ignition J1 3 CAN J1 2 CAN J6 3 CAN J6 1 B J6 2 B J6 4 CAN Twisted Pair Twisted Pair 1 87 30 2 1 2 ...

Page 172: ...Solution S ste Service Manual SC8000 Co onent ocations Extended Scrub Pump M6 Extended Scrub Float Switch S7 Recovery Tank Full Switch S2 ...

Page 173: ...Solution S ste Service Manual SC8000 Mist Pump M5 and Solution Filter Solution Pump M4 top Wand Pump M8 bottom Detergent Pumps M10 and M11 behind cover panel ...

Page 174: ...YH Note 3ODFH D VXLWDEOH FRQWDLQHU XQGHUQHDWK WKH ÀOWHU WR FDWFK DQ VROXWLRQ WKDW PD OHDN IURP WKH hoses 2 8QVFUHZ WKH Filter Cover and remove the Filter Cover DQG VFUHHQ IURP WKH ÀOWHU EDVH OHDQ DQ DFFXPXODWHG GLUW RU GHEULV IURP WKH VFUHHQ 4 5HLQVWDOO WKH VFUHHQ LQWR WKH ÀOWHU EDVH 5 0DNH VXUH WKH UXEEHU ZDVKHU LV LQVWDOOHG FRUUHFWO LQ the Filter Cover then reinstall and hand tighten the Filter ...

Page 175: ...G IURP WKH IURQW RI WKH PDFKLQH WR UHPRYH WKH Nozzle Cap Spray Nozzle and Check Valve Strainer IURP WKH Plastic Nozzle Adapter Rinse the Nozzle Cap Spray Nozzle and Check Valve Strainer LQ FOHDQ ZDWHU WR UHPRYH DQ DFFXPXODWHG GLUW RU VHGLPHQW I QHFHVVDU ULQVH RU VRDN WKH FRPSRQHQWV LQ YLQHJDU RU RWKHU FRPPHUFLDO FOHDQHU WR UHPRYH DQ mineral deposits 4 5HDVVHPEOH WKH XVW XDUG QR OHV E IROORZLQJ WKH...

Page 176: ... GUDLQ EHIRUH SXUJLQJ EHFDXVH D VPDOO DPRXQW RI GHWHUJHQW ZLOO EH GLVSHQVHG LQ WKH SURFHVV o ur e en C an in eter ents t e scru s ste ust e o 1 LVFRQQHFW DQG UHPRYH WKH GHWHUJHQW FDUWULGJH 2 7XUQ WKH NH VZLWFK RQ DQG ZDLW D IHZ VHFRQGV IRU WKH VWDUW XS VHTXHQFH WR ÀQLVK 3UHVV DQG KROG WKH GHWHUJHQW VZLWFK IRU DSSUR LPDWHO WZR VHFRQGV 4 5HOHDVH WKH VZLWFK ZKHQ WKH GHWHUJHQW Purge Icon DSSHDUV RQ WK...

Page 177: ... VZLWFK IRU DSSUR LPDWHO WZR VHFRQGV 5 5HOHDVH WKH VZLWFK ZKHQ WKH GHWHUJHQW Purge Icon DSSHDUV RQ WKH GLVSOD DQG WKH GHWHUJHQW LQGLFDWRU VWDUWV ÁDVKLQJ Note The eter ent o has eter ent evel ie in Slots IRU YLHZLQJ WKH DPRXQW RI GHWHUJHQW UHPDLQLQJ LQ the eter ent Cartri e s When WKH GHWHUJHQW OHYHO LV QHDULQJ WKH ERWWRP RI WKH eter ent evel ie in Slots UHÀOO RU UHSODFH WKH eter ent Cartri e s Det...

Page 178: ...UHVVHG 2Q FR OH V VWHPV WKH GHWHUJHQW PL WXUH ZLOO EH GLVSOD HG ZKHQHYHU WKH GHWHUJHQW V VWHP is on 2QFH VHW WKH GHWHUJHQW ÁRZ UDWH DXWRPDWLFDOO LQFUHDVHV DQG GHFUHDVHV ZLWK WKH VROXWLRQ ÁRZ UDWH EXW WKH GHWHUJHQW PL UDWLR ZLOO UHPDLQ WKH VDPH I DQ 2SHUDWRU ZRXOG SUHIHU WKH ÁH LELOLW RI VHWWLQJ GLIIHUHQW GHWHUJHQW GLOXWLRQV UDWLRV IRU GLIIHUHQW VROXWLRQ ÁRZ UDWHV WKLV VSHFLÀF SURJUDPPLQJ RSWLRQ FD...

Page 179: ...enoid coil wiring for problems ORN and YEL GRN Check coil resistance If less than 6 ohms replace The solution shutoff valve is plugged or inoperative Clean or replace the solution shutoff valve Inadequate solution ÀRZ WR WKH PDLQ brushes 7KH VROXWLRQ OWHU VFUHHQ LV plugged OHDQ WKH VROXWLRQ OWHU VFUHHQ Plugged solution hose Check and clear the solution hoses as necessary No solution to the DustGua...

Page 180: ...K replace the switch No voltage to the extended scrub pump 1 Check pump motors for short circuits and replace as necessary Check the wiring and circuit breakers upstream of the pump 2 Check the J2 35 output from the Driver Box The stainer in the recovery tank is dirty or plugged Remove and clean the strainer Note he olutio um li e ro ides a switched rou d retur for the um he the solutio um is N a ...

Page 181: ...s RED WHT and RED BLU 2 pump wire colors BLK YEL and BLK RED Check the detergent pump motors for short circuit and replace as necessary 1RWH 7KH VLJQDO FRQWUROOLQJ WKH GHWHUJHQW SXPS LV H WUHPHO FRPSOH DQG HOG troubleshooti should a ta e a fu ctio al a roach ubstitute with a ow ood deter e t um to chec o eratio f the ow ood um does ot o erate a d the wiri a d co trol i uts to the deter e t system ...

Page 182: ...H VFUXE RQ PRGH PXVW EH VHOHFWHG RQ WKH Dashboard Panel 7KH GULYH SHGDO PXVW EH DFWLYDWHG PRYHG IURP WKH neutral position L10 B B from K1 Power Relay B OUTPUT TOUCH PAD DASHBOARD PANEL CB4 20A ORN MAIN RIGHT SIDE SCRUB BRUSH SOLUTION VALVES PUMP L11 B CB5 10A GRN BRN B RED VIO RED VIO DRIVER BOX PIN J3 2 M4 MAIN SOLUTION PUMP GRN BLU MAIN SOLUTION VALVE RIGHT SIDE SOLUTION VALVE PIN J2 22 PIN J2 1...

Page 183: ... amps Nominal Coil Resistance 8 ohms Right Side Solution Solenoid Valve L11 Voltage 12 VDC Coil Power 11W Current 1 0 amps Nominal Coil Resistance 12 ohms Wand Pump M8 Voltage 12 VDC Max Current 12 5 amps 60 psi Flow Rate 2 0 GPM 50 psi Pressure Switch On 40 psi Off 60 psi Mist Pump M5 Voltage 24 VDC run at 12 VDC Max Current 3 9 amps DustGuard Spray Nozzles Standard nozzle size 015 dia Flow volum...

Page 184: ...L min Setting 2 1 9 gal min 7 2 L min Setting 3 2 3 gal min 8 7 L min Setting 4 2 7 gal min 10 2 L min Setting 5 3 1 gal min 11 7 L min AXP EDS and EcoFlex detergent systems 5H OODEOH FDUWULGJH quantity 2 2 5 gal 9 5 L Available dilution ratios 03 04 05 07 08 1 0 1 5 2 0 3 0 3 8 300 1 256 1 200 1 150 1 128 1 100 1 64 1 50 1 32 1 26 1 ...

Page 185: ...ircuit escri tion For the squeegee system to work the key switch must be on the engine must be running and the Driver Box must receive a signal from the Dashboard Panel via the CAN Bus that the Operator has actuated the scrub system vacuum switch old style control panel or the vacuum wand switch new style control panel Fuse 100A Relay Power Dashboard Panel Driver Box J2 5 J2 6 K1 F1 Circuit Breake...

Page 186: ... pump charge pressure relief valve and 7KH EDFN SUHVVXUH FUHDWHG E WKH UHWXUQ ÁRZ WKURXJK WKH FRROHU DQG ÀOWHU HQ URXWH WR WKH piston pump charge port S uee ee To retract the squeegee scrub off recovery off machine in reverse the Squeegee Up Solenoid Valve L3 energizes to direct the oil to the bottom port on the Squeegee Lift Cylinder This retracts the Squeegee Lift Cylinder and raises the VTXHHJH...

Page 187: ...ueegee Down Solenoid Valve L2 and the Squeegee Up Solenoid Valve L3 are GH HQHUJL HG WR VKXW RII WKH ÁRZ RI RLO WR the Squeegee Lift Cylinder and lock the squeegee in the up position 250 psi Back Pressure Reservoir Squeegee Down Solenoid Valve L2 Squeegee Up Solenoid Valve L3 Squeegee Lift Cylinder ...

Page 188: ...ed Parallel Arms bushings bearings and fasteners connect the Squeegee Lift Weldment to the machine frame The Squeegee Tilt Adjust Knob and the Squeegee Height Adjust Knobs allow you to adjust the angle and height of the Squeegee Assembly to ensure that the wastewater is being picked up correctly Refer to the Squeegee Adjustment section in the Instructions for Use for adjustment procedures Squeegee...

Page 189: ...e ee electrical ladder detail Squeegee DN solenoid over current fault code 12 is displayed Check L2 solenoid coil wiring for problems GRN BRN and RED GRA Check coil resistance If less than 6 ohms replace Also see acuu an n an S uee ee o n electrical ladder detail Squeegee will not rise Solenoid L3 is not energizing or has failed Check L3 solenoid coil wiring for problems GRN BRN and BRN GRN If the...

Page 190: ...ing The scrub on mode must be selected or the vacuum system switched on at the Dashboard Panel The drive pedal must be activated moved from the neutral position Component Current Amps Coil Resistance Ohms L1 1 5 Amps 8 ohms L2 1 5 Amps 8 ohms PIN J2 5 L2 SQUEEGEE DOWN B B from K1 Power Relay B OUTPUT TOUCH PAD DASHBOARD PANEL BRN YEL PIN J2 8 B OUTPUT L1 VACUUM FAN SOLENOID RED GRA B CB5 10A GRN B...

Page 191: ...to the reverse position squeegee will rise up The Vacuum Fan will shut off after a time delay once the drive pedal is in the neutral position Note that if the seat switch is open the Vacuum Fan will run continuously regardless of the drive pedal being in neutral to allow water pick up with the Wand attachment Component Current Amps Coil Resistance Ohms L3 1 5 Amps 8 ohms L2 B B from K1 Power Relay...

Page 192: ...Service Manual SC8000 6SHFL FDWLRQV Component 6SHFL FDWLRQV Squeegee Down Solenoid Valve L2 Current 1 5 amps Nominal Coil Resistance 8 ohms Squeegee Up Solenoid Valve L3 Current 1 5 amps Nominal Coil Resistance 8 ohms ...

Page 193: ...teering wheel rotates the shaft on the steering pump which FRQWUROV WKH RLO ÁRZ WR WKH Steer Cylinder The Steer Cylinder extends and retracts the attached Rack which then rotates the Spur Gear and attached Drive Wheel Weldment to turn the Front Wheel Rack Hydraulic Connections to Steering Pump Spur Gear Steer Cylinder Front Wheel Drive Wheel Weldment ...

Page 194: ... then directs the oil to the appropriate side of the Steer Cylinder to turn the front wheel in the corresponding direction The oil returns through the Steering Unit and returns to the Reservoir The Check Valve located in the Steering Unit allows manual steering when the engine is off Auxiliary Pump Reservoir Check Valve Steering Unit Metering Valve Steer Cylinder Priority Flow Divider Auxiliary Pu...

Page 195: ...g Unit Metering Valve or Steer Cylinder Co onent ocations Steerin nit The Steering Unit is driven by the steering wheel and is located in the steering column The Steering Unit unit includes the internal metering valve Auxiliary Pump Reservoir Check Valve Steering Unit Metering Valve Steer Cylinder Priority Flow Divider Steering Unit ...

Page 196: ...Steerin S ste Service Manual SC8000 Steer C lin er The Steer Cylinder is mounted horizontally and drives the rack and spur gear connected to the drive wheel assembly Steer Cylinder Steer Cylinder ...

Page 197: ...re ovin or reinstallin an ac ine co onents a e sure t e e s itc is o t e e is re ove ro t e ac ine an t e ar in ra e is en a e Note If the steer cylinder is removed mark the teeth where the rack engages the spur gear so the rack and spur gear engage at the same location when the steer cylinder is reinstalled 6SHFL FDWLRQV Component 6SHFL FDWLRQV Steering URQW ZKHHO K GUDXOLF F OLQGHU DQG URWDU YDO...

Page 198: ...ia ra Circuit escri tion For the side broom system to work the key switch must be on the engine must be running and the Driver Box must receive a signal from the Dashboard Panel via the CAN Bus that the Operator has actuated the main scrub system and has not disabled the side broom system Fuse 100A Relay Power Dashboard Panel Driver Box J2 7 CB4 Circuit Breaker 20A K1 Battery 12 VDC F1 Circuit Bre...

Page 199: ...e side broom actuator to raise or lower the side broom s the Driver Box must provide voltage at the appropriate polarity from J3 4 RED extend or J3 5 BLK retract Pin J3 7 WHT is the common Si e roo S ee S ste raulic ia ra s Si e roo Motor s When the two Side Broom Motors or the Right Side Scrub Motor and left Side Broom Motor are off the Side Sweep Scrub Valve L8 is closed de energized The Side Sw...

Page 200: ... Valve L8 is energized to direct the oil from the discharge side of the Cylindrical Scrub Brush Motors to the Side Scrub Broom Motors The oil then travels from the discharge side of the Side Scrub Broom Motors to the oil Cooler DQG ÀOWHU Right Side Scrub Motor Side Broom Motor w dual sweep Side Broom Motor Side Sweep Scrub Valve L8 From Cylindrical Scrub Brush Motors To Cooler ...

Page 201: ...ds and retracts the pivot arm on the Side Broom Lift Weldment to raise and lower the Side Broom Assembly 7KH XVW XDUG Mist Pump M5 supplies solution to the Nozzle Assembly to reduce the dust generated during sweeping The Side Sweep Scrub Valve L8 controls the hydraulic oil to the Hydraulic Motor on the Side Broom Assembly to switch the Hydraulic Motor on and off Actuator Motor Side Sweep Scrub Val...

Page 202: ...extends and retracts the pivot arm on the Side Broom Lift Weldment to raise and lower the Side Broom Assemblies 7KH XVW XDUG Mist Pump M5 supplies solution to the two Nozzle Assemblies The Side Sweep Scrub Valve L8 controls the hydraulic oil to the Hydraulic Motors on the Side Broom Assemblies to switch the Hydraulic Motors on and off Actuator Motor Side Broom Assembly 2 Hydraulic Motor 2 Nozzle A...

Page 203: ...or 1 Assemble the jumper wire that you ll need to connect machine battery to the three wire connector on the actuator Refer to the adjacent Jumper Wire Assembly Schematic and Bill of Material Important Service Note The power cord adapter p n 56407502 normally used on all other two wire actuator motors should not be used on the side broom lift actuator motor The Jumper Wire Assembly Schematic illus...

Page 204: ... with the OUT dimension shown 9 If the OUT measurement doesn t match the dimension shown it will be necessary to remove the rubber Adjuster Cover and rotate the outside hex adjuster underneath the Adjuster Cover Note Use a 1 2 13mm socket to turn the outside hex adjuster Each click of the adjuster cam will change the rive ut u e travel 1 16 1 6mm To increase the Drive Nut Tube OUT dimension turn t...

Page 205: ... coil resistance If less than 6 ohms replace Also see the Main Scru an Si e S ee Scru n electrical ladder detail Side sweep lift actuator over current fault code 30 displayed Three wires supply power to the M7 side broom lift actuator motor check wiring for problems Wire colors J3 4 BLU RED DN otherwise open J3 5 WHT RED UP otherwise open J3 7 GRA VIO common wire UP and DN Test current draw full l...

Page 206: ... on mode and side broom scrub must be selected on the Dashboard Panel The drive pedal must be activated moved from the neutral position Component Current Amps Coil Resistance Ohms L4 1 5 Amps 8 ohms L8 1 5 Amps 8 ohms 12 12 PIN J2 7 L4 B B from K1 Power Relay B OUTPUT TOUCH PAD DASHBOARD PANEL CB4 20A BLK WHT ORN PIN J2 2 B OUTPUT L8 SIDE SWEEP RIGHT SCRUB ORN BLU B B DRIVER BOX MAIN SCRUB BRUSH S...

Page 207: ...RQV Scrub Brush Solenoid Valve L4 Current 1 5 amps Nominal Coil Resistance 8 ohms Side Sweep Scrub Solenoid Valve L8 Current 1 5 amps Nominal Coil Resistance 8 ohms Side Broom Motor Displacement 17 9 Cu In Per Revolution Rotation Clockwise as viewed from shaft end Pressure Port A ...

Page 208: ...e fastened to the Finished Spindles with four 3 8 16 x 75 Hex Screws The Finished Spindles are fastened to the machine frame with four 1 2 13 x 1 25 Hex Screws The Brake Cable Assembly connects the Brake Pedal Assembly to the Brake Bar Weldment The Brake Bar Weldment actuates the brake levers on the Brake Assemblies 3 8 16 x 75 Hex Screw Rear Wheel Assembly 3 8 16 x 75 Hex Screw 4 1 2 13 x 1 25 He...

Page 209: ... Rod End into the brake pedal DVVHPEO WKHQ UHLQVWDOO DQG WLJKWHQ WKH Nyloc Nut 6 Check the brake tension as follows a Jack up the rear of the machine to get the rear wheels off of the ground Caution Ma e sure to ollo t e instructions in t e eneral n or ation ac in e Mac ine section ac t e ac ine at t e esi nate locations onl b Manually rotate the rear wheels to check the brake tension The tension ...

Page 210: ...indle and replace as required The wheel and or spindle is damaged The brakes are not working correctly The brakes are out of adjustment Adjust the brake tension The brake linings are worn out Replace the brake linings 6SHFL FDWLRQV Component 6SHFL FDWLRQV Brakes service Mechanical drum brakes one on each rear wheel cable actuated Tire rear 2 load bearing Size 16 in x 4 in 406 mm x 101 mm solid ...

Page 211: ... Push Pull Control Cable which is connected to the Hydroback Centering Unit The Hydroback Centering Unit transfers the Push Pull Control Cable motion to the Piston Pump Lever Weldment attached to the Piston Pump to control machine direction and speed The Hydroback Centering Unit also returns the foot pedal and Piston Pump Lever Weldment to the neutral position when the foot pedal is released The R...

Page 212: ... the hydraulic circuit from the piston pump to the Traction Drive Motor to allow the Front Wheel to rotate freely when towing or pushing the machine lectrical Sc e atic Front Wheel Traction Drive Motor Fuse 100A Driver Box F1 Circuit Breaker 15A CB6 K1 B1 3 B Relay Power J2 1 S1 Switch Ignition J1 10 J1 31 J1 11 J1 18 1 3 2 Drive Pedal Sensor 5K Ohm R1 1 2 1 2 Battery 12 VDC ...

Page 213: ...a ra s raction rive Motor in eutral When the foot pedal is in the neutral position with the engine running the Piston Pump is not sending any oil to the Traction Drive Motor o alve n a e When the engine is off the Traction Drive Motor acts like a hydraulic pump and makes LW GLIÀFXOW WR URWDWH WKH IURQW ZKHHO 7KH machine is equipped with a Tow Valve to eliminate this problem when towing or pushing ...

Page 214: ...in the forward direction for any reason front wheel stalled etc the Forward Relief Valve ZLOO RSHQ WR DOORZ RLO WR ÁRZ IURP DQG WR WKH Piston Pump bypassing the Traction Drive Motor to prevent damage to the hydraulic components If the Traction Drive Motor is unable to run in reverse the Reverse Relief Valve will open to bypass the Traction Drive Motor Piston Pump Traction Drive Motor Piston Pump T...

Page 215: ...ntering Unit is mounted on the left side of the Piston Pump The Rotary Sensor called the Drive Pedal Sensor on the electrical ladder diagram is fastened to the piston pump lever weldment raction rive Motor The Traction Drive Motor is mounted to the drive wheel weldment underneath the front of the machine Piston Pump Hydroback Centering Unit Rotary Sensor Traction Drive Motor ...

Page 216: ...f WKH ÁRRU 4 Place supports at the front corners of the machine 5 Start the engine and observe the direction of the drive wheel rotation 6 Loosen the two 5 16 18 Hex Head Screws holding the Hydroback Adjuster Plate to the chassis 7 Loosen the jam nut and turn the Adjustment Screw clockwise or counterclockwise to move the Hydroback Adjuster Plate and Hydroback Centering Unit as required to stop any...

Page 217: ...Sensor or Control Board Driver Box you will have to recalibrate the neutral deadband position and set the sensitivity as follows 1 Depress the foot pedal to the full reverse position then allow the pedal to slowly return to its neutral position Do not move the pedal during the remainder of this procedure 2 Press and hold the Engine Speed switch then turn the ignition Key Switch to the run on posit...

Page 218: ...e value The display will return to the previous menu Press the red Scrub Off switch to return to the previous menu without changing the percentage value 9 Turn the Key Switch to the off position The new settings will be saved and remain in effect until they are changed again rou les ootin Problem Cause Correction The machine creeps forward or backward when the foot pedal is in the neutral position...

Page 219: ... pedal Loosen the jam nuts and remove the Push Pull Control Cable from the mounting fork 6 Disconnect the rod end on the old Push Pull Control Cable from the foot pedal assembly 7 Loosen the locknut then remove the rod end and locknut from the Push Pull Control Cable 8 Remove the two jam nuts and star washer from the old Push Pull Control Cable This will make it easier to remove the old Cable from...

Page 220: ... then tighten the two jam nuts 18 Reinstall one jam nut and a star washer onto the Hydroback end of the new Push Pull Control Cable Only one jam nut is needed to fasten the Cable and Hydroback Centering Unit to the Hydroback Adjuster Plate 19 Remove the red plastic thread protector sleeve from the new Push Pull Control Cable then install the Cable into the Hydroback Centering Unit Note that the sm...

Page 221: ...it and the larger threads on the outside of the Cable will thread directly into the front of the Hydroback Centering Unit 7 Reinstall the locknut and Rod End onto the Push Pull Control Cable 8 Reinstall the Rod End into the Piston Pump Lever Weldment 9 Position the Push Pull Control Cable and attached Hydroback Centering Unit into the Hydroback Adjuster Plate by the Piston Pump Make sure the star ...

Page 222: ...ng wheel all the way toward the left The ÀWWLQJV VKRXOG EH RQ WKH IURQW VLGH RI WKH PRWRU 3 Make sure the Hydraulic Hoses are routed up and inside the channel in the Drive Wheel Weldment as shown on WKH ULJKW DQG OLH ÁDW DJDLQVW WKH Bottom of the Frame as shown below 4 Make sure the Hydraulic Hoses are not twisted then WLJKWHQ WKH ÀWWLQJV RQ ERWK HQGV WR IW OEV 1RWH WKDW WKH ÀWWLQJV PXVW EH WLJKW ...

Page 223: ...steer Size 18 in x 6 in 457 mm x 152 mm P7 solid Traction Drive Motor Displacement 18 3 CIR Shaft Rotation Clockwise as viewed from slot end Wheel Drive Piston Pump Displacement 1 44 CIR Speed 3600 RPM Max Continuous Pressure 3000 psi Maximum Case Pressure 25 psi Relief Setting 2500 psi 3500 psi KDUJH 5HOLHI SVL KLJK ÀRZ ...

Page 224: ...n 16 Hex Jam Nut Torque to 150 ft lb 20 x 1 25 Hex Screw Use Loctite 242 torque to 90 ft lb 13 Nyloc Hex Nut Torque to 100 ft lb Drive Wheel Motor Spindle Nut Torque to 375 ft lb lubed or 475 ft lb dry then tighten to align cross hole Wheel Studs Torque to 100 ft lb Steering Castle Spindle Nut 16 Hex Jam Nut 20 x 1 25 Hex Screw 13 Nyloc Hex Nut Drive Wheel Motor Spindle Nut Wheel Studs ...

Page 225: ......

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Nilfisk-Advance 56108110 SC8000 48 LPG, Service Manual

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