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TABLE OF CONTENTS

SUMMARY OF CHANGES: M-13-03, REVISION C ............................................................. 5

WARNINGS & SAFETY INSTRUCTIONS ............................................................................ 6

LIFTGATE TERMINOLOGY .................................................................................................. 8

PERIODIC MAINTENANCE ................................................................................................ 10

PERIODIC MAINTENANCE CHECKS ................................................................................ 10

PERIODIC MAINTENANCE CHECKLIST ............................................................................11

CHECKING HYDRAULIC FLUID ........................................................................................ 12

CHANGING HYDRAULIC FLUID ........................................................................................ 14

PLATFORM GAP & STOP ADJUSTMENT .......................................................................... 16

DECALS .............................................................................................................................. 18

SYSTEM DIAGRAMS ......................................................................................................... 22

PUMP & MOTOR SOLENOID OPERATION ....................................................................... 22

HYDRAULIC SCHEMATIC ................................................................................................. 23

ELECTRICAL SCHEMATIC ................................................................................................. 24

STOW SIGNAL ELECTRICAL SCHEMATIC ....................................................................... 25

TROUBLESHOOTING ........................................................................................................ 26

PLATFORM WILL NOT RAISE & MOTOR WILL NOT RUN ............................................... 26

PLATFORM WILL NOT RAISE, BUT MOTOR RUNS ......................................................... 27

PLATFORM RAISES BUT LEAKS DOWN .......................................................................... 28

PLATFORM RAISES PARTIALLY THEN STOPS ............................................................... 30

LIFTGATE WILL NOT LIFT RATED CAPACITY .................................................................. 32

PLATFORM WILL NOT LOWER, LOWERS TOO SLOWLY, OR TOO QUICKLY ............... 34

Содержание RA-35

Страница 1: ...M 13 03 REV C MAY 2016 MAXON Lift Corp 2016 MAINTENANCE MANUAL RA 35 RA 45 ...

Страница 2: ......

Страница 3: ...essing All claims for warranty will be denied if paperwork has not been received or claim submitted via Maxon website for processing by MAXON s Warranty Department within 30 days of repair date All components may be subject to return for inspection prior to the claim being processed MAXON products may not be returned without prior written approval from MAXON s Technical Service Department Returns ...

Страница 4: ...PLATFORM GAP STOP ADJUSTMENT 16 DECALS 18 SYSTEM DIAGRAMS 22 PUMP MOTOR SOLENOID OPERATION 22 HYDRAULIC SCHEMATIC 23 ELECTRICAL SCHEMATIC 24 STOW SIGNAL ELECTRICAL SCHEMATIC 25 TROUBLESHOOTING 26 PLATFORM WILL NOT RAISE MOTOR WILL NOT RUN 26 PLATFORM WILL NOT RAISE BUT MOTOR RUNS 27 PLATFORM RAISES BUT LEAKS DOWN 28 PLATFORM RAISES PARTIALLY THEN STOPS 30 LIFTGATE WILL NOT LIFT RATED CAPACITY 32 P...

Страница 5: ...FAX 888 771 7713 5 SUMMARY OF CHANGES M 13 03 REVISION C PAGE DESCRIPTION OF CHANGE COVER Updated REV and date of release 20 75 Removed parts explosion illustrations and parts lists 25 Revised stow signal electrical schematic to reﬂect relay and wire changes ...

Страница 6: ...e platform can become trapped between the platform and the Liftgate extension plate WARNING Correctly stow platform when not in use Extended platforms could create a hazard for people and vehicles passing by Recommended practices for welding on steel parts are contained in the current AWS American Welding Society D1 1 Structural Welding Code Steel Damage to Liftgate and or vehicle and personal inj...

Страница 7: ...seek ﬁrst aid If acid gets on your skin immediately wash it off with soap and water If an emergency situation arises vehicle or Liftgate while operating the Liftgate release the con trol switch to stop the Liftgate Read and understand the instructions in this Maintenance Manual before performing mainte nance on the Liftgate Before operating the Liftgate read and understand the operating instructio...

Страница 8: ...71 7713 8 LIFTGATE TERMINOLOGY FRAME ASSEMBLY HYDRAULIC DRIVE MOTOR IN OUT SWITCH WALL MOUNT UP DOWN SWITCH TILT ARM LIFT ARM LATCH RELEASE HANDLE SAFETY ARM RETENTION RAMPS FLIPOVER PLATFORM HYDRAULIC CYLINDER HYDRAULIC LOCK POWER PACK SLIDER ASSEMBLY UP DOWN SWITCH ...

Страница 9: ...11921 Slauson Ave Santa Fe Springs CA 90670 800 227 4116 FAX 888 771 7713 9 THIS PAGE INTENTIONALLY LEFT BLANK ...

Страница 10: ...Check all hoses and ﬁttings for chaﬁng and ﬂuid leaks Tighten loose ﬁttings or replace parts as required Check electrical wiring for chaﬁng and make sure wiring connections are tight and free of corrosion Use dielectric grease to protect electrical connections Check that all WARNING and instruction decals are in place Also make sure decals are legible clean and undamaged Check that all bolts nuts ...

Страница 11: ...k electrical wiring for chaﬁng and make sure wiring connections are tight and free of corrosion Use dielectric grease to protect electrical connections Check that all WARNING and instruction decals are in place Also make sure decals are legible clean and undamaged Check that all bolts nuts and roll pins are in place Make sure roll pins protrude evenly from both sides of hinge pin collar Replace fa...

Страница 12: ...low 70 Degrees F Grade ISO 15 or MIL H 5606 NOTE Use correct grade of hydraulic ﬂuid for your location See TABLES 13 1 13 2 for recommended brands 1 Unstow and lower Liftgate to ground REMOVE REINSTALL PUMP COVER FIG 12 1 3 Check the hydraulic ﬂuid level in reservoir as follows With Liftgate on ground level should be as shown in FIG 13 1 NOTE If the hydraulic ﬂuid in the reservoir is contaminated ...

Страница 13: ...LE 13 2 TABLE 13 1 ISO 32 HYDRAULIC OIL RECOMMENDED BRANDS PART NUMBER CHEVRON HIPERSYN 32 KENDALL GOLDEN MV SHELL TELLUS S2 V32 EXXON UNIVIS N 32 MOBIL DTE 13M DTE 24 HYDRAULIC OIL 13 ISO 15 OR MIL H 5606 HYDRAULIC OIL RECOMMENDED BRANDS PART NUMBER CHEVRON FLUID A AW MV 15 KENDALL GLACIAL BLU SHELL TELLUS S2 V15 EXXON UNIVIS HVI 13 MOBIL DTE 11M ROSEMEAD THS FLUID 17111 FILLER CAP RESERVOIR CAUT...

Страница 14: ...rom accidental contamination 50 to 120 Degrees F Grade ISO 32 Below 70 Degrees F Grade ISO 15 or MIL H 5606 NOTE Use correct grade of hydraulic ﬂuid for your location See TABLES 13 1 13 2 for recommended brands PERIODIC MAINTENANCE 2 Unlatch and remove the pump cover FIG 14 1 3 Place empty 5 gallon bucket under drain plug FIG 14 2 Remove drain plug FIG 14 2 Drain hydraulic ﬂuid Re install drain pl...

Страница 15: ...l ﬁller cap FIG 15 1 CAUTION Pump cover must be correctly secured to prevent it from becom ing a hazard Ensure pump cover is latched to pump box 6 Reinstall and latch the pump cover FIG 15 2 5 Stow the lift and do the CHECKING HYDRAULIC FLUID procedure in this section of the manual REINSTALL PUMP COVER FIG 15 2 PUMP COVER LATCHES 2 PLACES POWER UNIT REF POWER UNIT FLUID LEVEL FIG 15 1 FILLER CAP R...

Страница 16: ...T VIEW FIG 16 1B FIG 16 1A PLATFORM FLUSH WITH VEHICLE FLOOR FIG 16 1 PLATFORM FLIPOVER FINE ADJUSTMENT BOLT TRAILER FLOOR TRAILER WALL PLATFORM GAP STOP ADJUSTMENT NOTE Park vehicle on level ground and unload vehicle before doing this procedure 1 Run slide assembly out and unfold the ﬂipover Then raise platform to ﬂoor level making sure not to hit trailer wall FIG 16 1 If necessary trim platform ...

Страница 17: ... platform at ﬂoor level turn stop block bolts COUNTERCLOCKWISE until butted against each lift arm as shown in FIGS 17 1 and 17 1A This will prevent the platform from hitting the trailer wall PLATFORM FLUSH WITH VEHICLE FLOOR FIG 17 1 TRAILER WALL TRAILER FLOOR PLATFORM STOP BLOCK BOLT LIFT ARM ...

Страница 18: ...7713 18 DECALS FIG 18 1 CAUTION DECAL P N 282682 02 CAUTION DECAL P N 282683 02 OPERATION DECAL P N 282664 01 SERIAL PLATE REF DECAL A DECAL F DECAL B DECAL C CAPACITY DECAL RA 35 ONLY P N 220388 04 CAPACITY DECAL RA 45 ONLY P N 220388 05 FAMILY OWNED DECAL P N 283445 01 ...

Страница 19: ...11921 Slauson Ave Santa Fe Springs CA 90670 800 227 4116 FAX 888 771 7713 19 DECAL SHEET P N 282522 01 FIG 19 1 ...

Страница 20: ... 800 227 4116 FAX 888 771 7713 20 DECAL J DECAL F DECAL M DECAL M MAXON CONSPICUITY TAPE BOTH SIDES P N 908150 01 DECAL L DECAL L DECAL P N 264507 DECAL P N 282721 01 DECAL P N 282713 01 FIG 20 1 DECAL F DECAL K DECAL K DECAL I DECALS Continued ...

Страница 21: ...11921 Slauson Ave Santa Fe Springs CA 90670 800 227 4116 FAX 888 771 7713 21 DECAL SHEET P N 282724 01 FIG 21 1 ...

Страница 22: ...PUMP MOTOR SOLENOID OPERATION POWER UNIT MOTOR SOLENOID OPERATION LIFTGATE FUNCTION PORT SOLENOID OPERATION MEANS ENERGIZED MOTOR VALVE S1 VALVE S2 VALVE S3 LOCK VALVE RAISE L LOWER T SLIDE OUT A SLIDE IN B REFER TO VALVES SHOWN ON HYDRAULIC SCHEMATIC S1 VALVE S3 VALVE S2 VALVE PORT A PORT B PORT L PORT T STARTER SOLENOID MOTOR ...

Страница 23: ...VES CYLINDERS HYDRAULIC MOTOR FLOW CONTROL VALVE 4 GPM VALVE S3 PRV 2250 PSI PRV 1500 PSI VALVE S1 VALVE S2 P TEST PORT A OUT B IN NOTE PRV PRESSURE RELIEF VALVE PRV 1500 PSI FILTER FILTER PUMP 1 5 GPM 1 5 GPM FLOW CONTROL VALVE 2 GPM FLOW CONTROL VALVE 2 GPM RESERVOIR CHECK VALVE CHECK VALVE CHECK VALVE CHECK VALVE ...

Страница 24: ...11921 Slauson Ave Santa Fe Springs CA 90670 800 227 4116 FAX 888 771 7713 24 ELECTRICAL SCHEMATIC SYSTEM DIAGRAMS Continued FIG 24 1 ...

Страница 25: ...11921 Slauson Ave Santa Fe Springs CA 90670 800 227 4116 FAX 888 771 7713 25 STOW SIGNAL ELECTRICAL SCHEMATIC FIG 25 1 ...

Страница 26: ...ouch a jumper wire to terminals B D FIG 26 1 If motor runs check control switch switch connections and fuse on red wire The check and correct wiring connections replace fuse or replace the control switch 3 Touch heavy jumper cables to terminals A B FIG 26 1 a If motor runs replace the motor solenoid b If motor does not run repair or replace the pump motor TERMINAL B BATTERY STARTER SOLENOID TERMIN...

Страница 27: ...lean or replace valve if necessary 2 Check for structural damages and replace worn parts CHECKING THE RAISING RELIEF VALVE FIG 27 1 PLATFORM WILL NOT RAISE BUT MOTOR RUNS ADJUSTMENT COVER RELIEF VALVE RESERVOIR Keep dirt water and other contaminants from entering the hydraulic system Be fore opening the hydraulic ﬂuid reservoir ﬁller cap drain plug and hydraulic lines clean up contaminants that ca...

Страница 28: ...AL C GROUND POWER UNIT FIG 28 1 TERMINAL A LOAD 1 Check if the A lowering solenoid valve is constantly energized Connect voltmeter negative lead to ground wires connection on pump and positive lead to terminal on the A lowering solenoid valve FIG 28 1 If voltmeter reads battery voltage check for faulty wiring or toggle switch TROUBLESHOOTING PLATFORM RAISES BUT LEAKS DOWN ...

Страница 29: ... hex nut to 30 lbs in 3 Check the hydraulic cylinder With platform at vehicle ﬂoor level remove the hydraulic line from the RELIEF port on the cylinder FIG 29 3 Hold the control switch in the RAISE position for two seconds while you watch for hydraulic ﬂuid at the RELIEF port A few drops of hydraulic ﬂuid escaping the port is normal However if ﬂuid streams out piston seals are worn Replace seals K...

Страница 30: ...p motor 3 Check for structural damage and poor lubrication Replace worn parts 4 Check for dirty raising relief valve FIG 30 1 Clean or re place relief valve if necessary ADJUSTMENT COVER RELIEF VALVE RESERVOIR CHECKING THE RAISING RELIEF VALVE FIG 30 1 Keep dirt water and other contaminants from entering the hydraulic system Before opening the hydraulic ﬂuid reservoir ﬁller cap drain plug and hydr...

Страница 31: ...er FIG 31 1 Hold the control switch in the RAISE position for two seconds while you watch for hydraulic ﬂuid at the RELIEF port A few drops of hydraulic ﬂuid escaping the port is normal However if ﬂuid streams out piston seals are warn Replace seals 6 Check pump oil ﬁlter in the reservoir line FIG 31 1 Clean or replace ﬁlter if neces sary CHECKING SOLENOID VALVE FIG 31 1 RELIEF PORT RAISE PORT CYL...

Страница 32: ...ts that can get in the open ings Also protect the openings from acci dental contamination during maintenance CAUTION 3 Check the 2250 PSI pressure relief valve as follows With platform on the ground remove plug from test port FIG 32 1 Install 0 4000 PSI pres sure gauge in the test port FIG 32 1 Hold the control switch in the RAISE position Adjust the relief valve until the gauge reads 2250 150 PSI...

Страница 33: ...ld the control switch in the RAISE position for two seconds while you watch for hydraulic ﬂuid at the RELIEF port A few drops of hydraulic ﬂuid escap ing the port is normal However if ﬂuid streams out piston seals are worn Replace seals FIG 33 1 RELIEF PORT RAISE PORT CYLINDER 6 If pump cannot produce 2250 150 PSI or lift the load capacity with a mini mum of 12 6 volts available the pump is worn a...

Страница 34: ...TTERY TERMINAL D COIL DRIVE TERMINAL C GROUND POWER UNIT FIG 34 1 TERMINAL A LOAD VALVE C LOWERING SOLENOID VALVE STARTER SOLENOID 3 Check if the D terminal and A lowering solenoid valve are getting battery voltage FIG 34 1 Connect voltmeter nega tive lead to ground wires connection on pump and posi tive lead to the D terminal FIG 34 1 Hold control switch in the LOWER position Then connect voltmet...

Страница 35: ...ows Remove ﬂow control valve FIG 35 1 Ensure the ﬂow control valve operates with a smooth spring loaded action Check for debris inside the valve Clean or replace the ﬂow control valve if necessary Reinstall ﬂow control valve if good or a replacement Do the same for the LH ﬂow control valve RH CYLINDER CHECKING SOLENOID VALVE FIG 35 2 VALVE CARTRIDGE 1 8 5 Check the lowering solenoid valve as follo...

Страница 36: ......

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