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17

Maintenance

Hotsy HWE Operator’s Manual  8.941-225.0 - Y

Preventative Maintenance

This pressure washer was produced with the best available materials and quality craftsmanship. However, you as 
the owner, have certain responsibilities for the correct care of the equipment. Attention to regular preventative main-
tenance procedures will assist in preserving the performance of your equipment. Contact your Hotsy dealer for 
maintenance. Regular preventative maintenance will add many hours to the life of your pressure washer. Perform 
maintenance more often under severe conditions.

Oil Change Record

Check pump oil level before first use of your new Power Washer. Change pump oil after first 50 hours and every 
year or 500 hours thereafter. Use SAE 10/40W non-foaming oil.

Maintenance Schedule

Pump Oil (Non-foaming) SAE 10W-40

Inspect

Oil level daily

Change

After first 50 hours, then every 500 hours or annually

Replace High Pressure Nozzle

Every 6 months

Replace Quick Connects

Annually

Clean Water Screen/Filter

Weekly

Replace HP Hose

Annually

Grease Motor

Every 10,000 hours

Inspect Heater Module Tank Water Level 

Weekly

Date Oil Changed                   

Month/Day/Year

Estimated Operating 
Hours Since Last Oil 

Change

Date Oil Changed                   

Month/Day/Year

Estimated Operating 
Hours Since Last Oil 

Change

Summary of Contents for HWE-4020C

Page 1: ...Dealer nearest you consult our web page at www hotsy com HE AT ER ON TIME R 7 DA Y CO NTR OLA DO R DE TIE MP O DE SIE TE DIE AS MIN UTE RIE DE 7 JOU RS PO WER CO RR IEN TE CO UR AN T HE AT ER CA LEN...

Page 2: ...2 Hotsy HWE Operator s Manual 8 941 225 0 Y Machine Data Label...

Page 3: ...enance 17 Maintenance Schedule 17 Oil Change Record 17 Troubleshooting 19 Parts Exploded View Left Side 24 Exploded View Right Side 25 Exploded View Parts List 26 Exploded View Parts List 28 Cabinet E...

Page 4: ...tion and function of the machine The MAINTENANCE section contains preventive main tenance to keep the machine and its components in good working condition They are listed in this general order Prevent...

Page 5: ...tor is not fluent in English the manufacturer s instructions and warnings shall be read to and discussed with the operator in the operator s native language by the purchaser owner making sure that the...

Page 6: ...esponsibility of the owner to connect this machine to a UL grounded receptacle of proper voltage and amperage ratings Do not spray water on or near electrical components Do not touch machine with wet...

Page 7: ...osition for extended periods of time as this may cause damage to the pump Warning Protect machine from freezing AVERTISSEMENT Prot ger la machine contre le gel 11 Protect discharge hose from vehicle t...

Page 8: ...Faire preuve d une extr me prudence au moment d utiliser une chelle des chafaudages ou toute autre surface relativement instable La zone de nettoyage doit avoir une pente et un drainage ad quats pour...

Page 9: ...perations Component Identification TIME R 7 DA Y CO NTR OLA DO R DE TIE MP O DE SIE TE DIE AS MIN UTE RIE DE 7 JOU RS PO WER CO RR IEN TE CO UR AN T HE AT ER CA LEN TAD OR CH AU FFE EA U PU LL OU T PI...

Page 10: ...ivot on this screw Once access panel is rotated out of the way attach the electrical harness from the pressure washer to the heating module as follows a Feed pressure washer wire harness through the u...

Page 11: ...the spray gun trigger Attention Ne jamais remplacer les buses sans d abord mettre le dispositif de s curit sur la d tente du pistolet pulv risa teur STEP 7 Release the coupler collar and push the noz...

Page 12: ...iques section STEP 5 To stop machine release the spray gun and machine will automatically stop in approximately 12 seconds If machine is going to be unattended for long periods of time turn water supp...

Page 13: ...operate machine Liquid detergent is drawn into the machine and mixed with water Apply detergent to work area Do not allow detergent to dry on surface IMPORTANT You must flush the detergent injection s...

Page 14: ...results If painted surfaces are peeling or chipping use extreme caution as pressure washer may remove the loose paint from the surface Keep the spray nozzle a safe distance from the surface you plan t...

Page 15: ...itions disconnect water supply and open spray gun to allow water to drain then turn off motor CAUTION Do not allow pump to run longer than 5 minutes without water Disconnect all hoses to allow water t...

Page 16: ...e sur cette machine est susceptible de subir des dommages si elle est expos e au gel FREEZE DAMAGE IS NOT COVERED BY WARRANTY If you must store your pressure washer in a location where the temperature...

Page 17: ...ance more often under severe conditions Oil Change Record Check pump oil level before first use of your new Power Washer Change pump oil after first 50 hours and every year or 500 hours thereafter Use...

Page 18: ...repair of the pumping system is required Weekly After the first week of operation it is recommended 1 quart 1 litre of motor oil be added to the heat exchanger tank through the 1 1 4 fill pipe This oi...

Page 19: ...ATING PRESSURE Valves worn Check and replace if necessary Blockage in valve Check and clean out if necessary Pump sucking air Check water supply and suction line for air seepage at joints Worn piston...

Page 20: ...itch faulty Check clean or replace Timer faulty Check and replace SYSTEM WILL NOT STOP Water leak in discharge line Repair water leak Pressure switch faulty Disconnect at timer If unit stops replace p...

Page 21: ...mbly will have to be disassembled to inspect and or replace the O rings in the actuator fitting Spring tension Adjustment should stop when pressure is no longer affected by further compression of the...

Page 22: ...22 Notes Hotsy HWE Operator s Manual 8 941 225 0 Y...

Page 23: ...23 Parts Parts HOTSY HWE HWE 4020C 1 109 646 0 HWE 4030C 1 109 647 0 HWE 4020F 1 109 958 0 HWE 4030F 1 109 959 0 Hotsy HWE Operator s Manual 8 941 225 0 Y...

Page 24: ...ion 17 95 84 4 8 86 84 89 10 87 93 5 7 6 57 84 92 3 20 2 21 9 19 59 94 56 16 82 22 18 15 23 65 97 24 82 82 26 75 64 49 25 24 Reversed View of Electrical Panel Components 92 62 Time Delay Option 1 76 2...

Page 25: ...E R L AL IME NTA TIO N ELE CTR IQU E AVA NT DE FAIR E UNE REP ARA TIO N 9 80 0 01 6 0 AT EN CIO N AT TE NT IO N WAR NI NG 98412250 3 11 12 100 14 13 59 60 56 83 28 54 88 46 70 73 74 44 48 47 45 50 80...

Page 26: ...6 W LID 12 9 803 038 0 1 BRACKET SUPPORT FOR ELEC BOX 13 9 802 518 0 1 STRAIN RELIEF 3 4 LQ TITE 9 802 526 0 1 LOCKNUT 3 4 NOT SHOWN 14 9 802 515 0 1 STRAIN RELIEF STRT LQ TITE MED 9 802 524 0 1 LOCKN...

Page 27: ...8 712 348 0 1 NOZZLE SAQCMEG 4004 WHITE HWE 4030C 8 712 356 0 1 NOZZLE SAQCMEG 4005 WHITE HWE 4020C 42 8 900 919 0 1 LABEL HOTSY 43 8 901 106 0 2 LABEL HOTSY LOGO STRIPE 44 BUSHING SEE SPECIFICATIONS...

Page 28: ...042 0 1 ELBOW 1 2 JIC X 3 8 FEMALE 76 9 802 042 0 1 ELBOW 1 2 JIC X 3 8 FEM TIME DELAY 9 802 039 0 1 ELBOW 1 2 JIC X 3 8 MPT 575V TIME DELAY ONLY 77 9 800 034 0 1 CLEAR LEXAN 78 8 901 136 0 1 DETERGEN...

Page 29: ...94 0 8 CAGE NUT 1 4 X 12 GAUGE 91 9 802 811 0 4 WASHER 3 8 X 1 1 2 FENDER 92 9 800 040 0 2 LABEL GROUND 93 9 803 032 0 1 STANDOFF ELECTRICAL BOX 94 9 802 520 0 1 STRAIN RELIEF 3 4 HWE 4020C 9 802 522...

Page 30: ...NI NG TA NK FIL L EL BO W DO NO T PL UG VE NT HO LE Part No 98412250 4 2 6 5 4 7 9 8 3 10 11 13 12 17 16 15 14 42 43 44 45 46 47 To Pressure Washer 43 43 65 66 14 64 1 24 77 78 79 75 58 72 76 80 Hots...

Page 31: ...Exploded View Right Side L1 L2 L3 32 31 30 18 26 27 25 24 29 28 19 20 21 22 23 56 33 34 35 38 36 37 41 40 39 48 49 81 50 51 53 52 54 55 43 59 47 53 56 64 57 48 23 61 60 62 63 53 61 52 43 25 71 68 67 7...

Page 32: ...0 4 PAD 1 4 RUBBER COIL 21 8 711 785 0 10 HOSE 3 8 X 1 2 PUSH ON 22 8 913 214 0 1 BRACKET COIL SPACER 23 8 706 322 0 2 TUBE FITTING PARKER 8MSC6N 316 1 2 SS A LOK 24 8 706 207 0 2 ELBOW 3 8 STREET 25...

Page 33: ...9 802 171 0 1 NIPPLE 3 8 X 3 8 NPT ST MALE 59 9 802 073 0 10 ft WEATHERSTRIP 1 8 X 1 2 60 8 718 803 0 1 SCREW 10 32 X 3 4 BHSOC 61 9 802 695 0 3 NUT 10 32 KEPS 62 9 802 464 0 1 FUSE PAPER BUSS 8 10 25...

Page 34: ...34 Hose Gun Wand Assembly 6 5 3 2 1 4 High Pressure Nozzle 7 Hotsy HWE Operator s Manual 8 941 225 0 Y...

Page 35: ...1 4 MALE 9 802 096 0 1 QUICK COUPLER O RING SMALL NOT SHOWN 2 9 802 286 0 1 NOZZLE ONLY 1 8 SOAP 3 8 711 293 0 1 WAND SS VP AL344 W COUPLER SOAP NOZZLE 4 SEE NOZZLES ON EXPLODED VIEW PARTS LIST 5 8 7...

Page 36: ...751 004 0 8 923 165 0 8 715 592 0 2BK80 8 715 582 0 2BK47 24 MM HWE 4030C 7 5 HP 8 755 604 0 8 923 165 0 8 715 592 0 2BK80 9 802 384 0 2BK40 24 MM HWE 4020F 5 HP 8 751 009 0 8 623 165 0 8 715 592 0 2...

Page 37: ...3 0 8 724 268 0 8 724 303 0 9 802 462 0 2 9 802 463 0 2 9 802 551 0 4030C 9 802 402 0 H X 1 3 8 9 802 401 0 BX41 8 715 702 0 8 724 268 0 8 724 303 0 9 802 462 0 2 9 802 463 0 1 9 802 551 0 4020F 9 802...

Page 38: ...38 VBR Unloader Valve Exploded View Hotsy HWE Operator s Manual 8 941 225 0 Y...

Page 39: ...D 8 932 685 0 1 SPACER YELLOW 8 932 686 0 1 SPACER GREEN 8 932 687 0 1 SPACER BLUE 9 1 STEM SEE KIT D 10 2 O RING BACK UP SEE KIT C 11 1 O RING STEM SEE KIT C 12 9 802 925 0 2 PLUG 3 8 13 9 803 198 0...

Page 40: ...40 VB8 Unloader Valve Exploded View Hotsy HWE Operator s Manual 8 941 225 0 Y...

Page 41: ...RING GUIDE 16 10 3167 01 1 O RING 2 62 X 5 23 MM 17 60 1203 31 1 PISTON HOUSING 18 16 2100 00 1 M 4 X 4 MM DOWEL 19 60 1704 31 1 M 22 NUT 20 14 3719 00 1 WASHER 9 X 15 MM 21 60 1208 61 1 3 2 X 33 MM S...

Page 42: ...0 1 OUTLET FITTING 18 8 750 712 0 1 KNOB UNLOADER 8 750 709 0 REPAIR KIT VRT3 2320 3630 PSI KIT ITEMS 3 4 6 9 12 21 24 Hotsy HWE Operator s Manual 8 941 225 0 Y 8 750 298 0 8 GPM 3630 PSI 9 8 23 26 2...

Page 43: ...and screw down until contact is made with the nuts Items 15 Screw down lock nut Item 19 onto the stem Item 8 until the threads cut into the nylon insert of the lock nut Item19 If adjustment knob Item...

Page 44: ...44 HM 3 Series Pump Exploded View TORQUE SPECS Item Ft lbs 14 75 15 30 23 8 33 9 43 13 48 7 6 Hotsy HWE Operator s Manual 8 941 225 0 Y...

Page 45: ...REW 24 8 717 210 0 1 CLOSED BEARING HOUSING 25 9 803 192 0 2 O RING 1 78 X 60 05 26 8 933 011 0 2 TAPERED ROLLER BEARING 27 8 751 222 0 1 CRANKSHAFT 3540 8 751 223 0 1 CRANKSHAFT 4030 4035 8 717 063 0...

Page 46: ...SCRIPTION Plunger Seal 4035 18mm Plunger Seal 4030 4031 20mm Plunger Seal 3540 15mm Complete Seal Packing 4035 18mm Complete Seal Packing 4030 4031 20mm Complete Seal Packing 3540 15mm ITEM NUMBERS IN...

Page 47: ...NO 8 751 237 0 8 751 238 0 8 933 023 0 9 802 603 0 9 802 609 0 KIT DESCRIPTION Plunger 4035 18mm Plunger 4030 4031 20mm Plunger 3540 15mm Complete Valve Plunger Oil Seals ITEM NUMBERS INCLUDED 33 34...

Page 48: ...8 GA 6 GA WIRE NOTES FOR PROPER JUMPER NOTE TRANSFORMER BAR LOCATION 1 PRESSURE SWITCH 3 2 METER 120V HOUR 6 5 W 7 C NC NO 1 2 6 TIMER 120V BR R BR R APPLICABLE MACHINES 1 106 514 2 8 903 046 0 1 106...

Page 49: ...F THE SIZE AND WIRING CONFIGURATION OF THE AND 120V ON SECONDARY SIDE VERIFY THE SHOWN WIRED FOR 230V ON PRIMARY SIDE 1 MICRON TRANSFORMER SHOWN TRANSFORMER 3 VERIFY COMPONENT VOLTAGES NOTES 1 W W PRE...

Page 50: ...50 Wiring Diagram 3 Heating Module Hotsy HWE Operator s Manual 8 941 225 0 Y...

Page 51: ...51 Hotsy HWE Operator s Manual 8 941 225 0 Y Notes...

Page 52: ...cal Hotsy dealer or visit www Hotsy com Smart phone users scan the code below to link directly to the Service Request page To REGISTER your pressure washer please visit our Warranty Registration page...

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