Kärcher HD 4.2/20 ST Ea B Manual
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Kärcher HD 4.2/20 ST Ea B Manual

Kärcher HD 4.2/20 ST Ea B Manual

Pressure washer - hd cold water - electric powered
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9.800-086.0 - BH 02/16/24
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Summary of Contents for Kärcher HD 4.2/20 ST Ea B

  • Page 1 Pressure Washer - HD Cold Water - Electric Powered English To locate your local Kärcher Commercial Pressure Washer Dealer nearest you, visit www.karchercommercial.com Register 9.800-086.0 - BH 02/16/24 your product www.kaercher.com/welcome...

  • Page 2: Machine Data Label

    Machine Data Label MODELS: Reference Voltage/ Machine HD 2.8/10 ST Ed B SS HD 2.8/10 ST Ed B Size Model 1.106-603.0 1.575-300.0 1.575-300.0 120V/1PH HD 3.9/20 ST Ea B SS HD 4.2/20 ST Ea B 1.575-301.0 6.2HP 230V/1PH 1.106-604.0 1.575-301.0 1.575-302.0...

  • Page 3: Table Of Contents

    Table of Contents Machine Data Label ......2 Table of Contents ......3 How To Use This Manual .

  • Page 4: How To Use This Manual

    How To Use This Manual This manual contains the following sections: The SAFETY section contains important information regarding hazardous or unsafe practices of the • How to Use This Manual machine. Levels of hazards are identified that could • Safety result in product damage, personal injury, or severe •...

  • Page 5: Safety

    Safety Introduction & Safety Information Thank you for purchasing this Pressure Washer.We reserve the right to make changes at any time without incurring any obligation. Owner/User Responsibility: The owner and/or user must have an understanding of the manufacturer’s operating instructions and warnings before using this pressure washer.

  • Page 6: Important Safety Information

    Safety Important Safety Information WARNING: Keep wand, hose, and WARNING water spray away from electric WARNING: To reduce the risk of wiring or fatal electric shock may WARNING injury, read operating instructions result. carefully before using. AVERTISSEMENT: Garder la AVERTISSEMENT: Pour réduire le lance, le boyau et le jet d'eau à...
  • Page 7 Safety WARNING: Grip cleaning wand 14. Inlet water must be clean fresh water and no hotter WARNING securely with both hands before then 145°F. starting. Failure to do this could 15. Manufacturer will not be liable for any changes result in injury from a whipping made to our standard machines or any compo- wand.

  • Page 8: Operations

    Operations High Pressure Nozzle Soap Nozzle Water Supply Wand Quick On/Off Coupler Switch Garden Hose Inlet Trigger Discharge Swivel Nipple Connector Spray Garden Hose (not included) Detergent Injector Hose Coupler Detergent Pick-up Tube High Pressure Hose Detergent Bucket (not included) Component Identification Wand —...

  • Page 9: Assembly Instructions

    Operations Assembly Instructions Safety Nozzle Latch Coupler Spray High Pressure Hose STEP 2: Connect garden hose to STEP 3: Insert nozzle into coupler. STEP 1: Attach the high pressure the cold water source. Before Release the coupler collar and hose to the spray gun using teflon installing nozzle, turn on water push the nozzle until the collar tape on hose threads.

  • Page 10: Operating Instructions

    Operations Operating Instructions On/Off Switch Cold Water Source Garden Hose STEP 1: Connect garden hose to STEP 2: Trigger the spray gun to STEP 3: Turn machine on by the cold water source and turn eliminate trapped air then wait for a pushing switch at front of machine.

  • Page 11: Detergents And General Operating Techniques

    Operations Detergents And General Operating Thermal Pump Protection Techniques If you run your pressure washer for 2 minutes without pressing the trigger on the spray gun, circulating water in WARNING: Some detergents may the pump can reach high temperatures. When the water WARNING be harmful if inhaled or ingested, reaches this temperature, the pump protector engages...

  • Page 12: Shutting Down And Clean-Up

    Operations Shutting Down And Clean-Up STEP 3: Turn off water STEP 2: Turn off STEP 4: Press trigger to STEP 1: Remove supply. machine by pushing release water pressure. detergent suction tube switch on front panel. from soap container and insert into one gallon of fresh water.

  • Page 13: Storage

    Operations Storage Pump Storage CAUTION: Always store your pressure washer in a location where the temperature will not fall below 32° F (0° C). The pump in this machine is susceptible to permanent CAUTION damage if frozen. ATTENTION: Toujours entreposer la laveuse à pression dans un endroit où...

  • Page 14: Maintenance

    Maintenance 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 procedure will assist in preserving the performance of your equipment. Contact your dealer for mainte- nance.

  • Page 15: Troubleshooting

    Maintenance Troubleshooting PROBLEM SOLUTION POSSIBLE CAUSE Pump sucking air Check water supply and possibility of air. PUMP RUNNING Check valves sticking Check and clean or replace if necessary. NORMALLY BUT PRESSURE Unloader valve seat faulty Check and replace if necessary. LOW ON Nozzle incorrectly sized Check and replace if necessary.

  • Page 16: Multi-Room Installation

    Maintenance Multi-Room Installation Karcher HD 300-310 Operator’s Manual 9.800-086.0 - BH...
  • Page 17 KARCHER HD HD 2.8/10 ST Ed B HD 3.5/30 ST Eh B 1.575-300.0 1.575-310.0 HD 4.2/20 ST Ea B HD 2.8/10 ST Ed B SS 1.575-301.0 1.106-603.0 HD 4.2/20 ST Eb B HD 3.9/20 ST Ea B SS 1.575-302.0 1.106-604.0 HD 4.2/20 ST Ec B...
  • Page 18 Karcher HD Enlarged Reverse View Time Delay Option Auto Start Option Auto Start Option Unloader and Pump For Details See Pump Assy 1.575-300.0 Karcher HD 300-310 Operator’s Manual 9.800-086.0 - BH...
  • Page 19 Karcher HD Karcher HD 300-310 Operator’s Manual 9.800-086.0 - BH...
  • Page 20 Karcher HD PART NO. DESCRIPTION NOTES UNLOADER SEE PUMP PAGE PUMP SEE PUMP PAGE 8.759-045.0 MOTOR 2HP 1PH 115/230V F3 1725RPM 56C (300.0) 8.759-054.0 MOTOR 6.2HP 1PH 230V F3 1750RPM 182/4T (301.0) 8.759-055.0 MOTOR 6.2HP 3PH 200V F1 1750RPM 182/4T (305.0, 606.0) 8.759-056.0 MOTOR 6.2HP 3PH230/460VF1 1740RPM 182/4T...
  • Page 21 Karcher HD PART NO. DESCRIPTION NOTES (301.0, 302.0, 303.0, 305.0, 9.802-807.0 WASHER, 3/8" SAE, FLAT 306.0,307.0, 308.0, 309.0, 310.0) 9.802-808.0 WASHER, 3/8" SAE, SS(936631) (SS MACHINES) 8.724-304.0 OVERLOAD, XTOB024CC1DP, 16.0 - 24.0 (302.0, 305.0, 307.0, 606.0) (303.0, 308.0, 605.0, 608.0, 8.724-312.0 OVERLOAD, XTOB016CC1DP, 10.0 - 16.0 609.0)
  • Page 22 Karcher HD PART NO. DESCRIPTION NOTES 8.712-354.0 NOZZLE, SAQCMEG 1505, YELLOW (603.0) 8.712-355.0 NOZZLE, SAQCMEG 2505, GREEN (603.0) 8.712-356.0 NOZZLE, SAQCMEG 4005, WHITE (603.0) 8.712-358.0 NOZZLE, 1505.5, YELLOW (300.0, 604.0, 605.0, 606.0) 8.712-359.0 NOZZLE, 2505.5, GREEN (300.0, 604.0, 605.0, 606.0) 8.712-360.0 NOZZLE, 4005.5, WHITE (300.0, 604.0, 605.0, 606.0)
  • Page 23 Karcher HD PART NO. DESCRIPTION NOTES (300.0, 301.0, 302.0, 303.0, 305.0, 9.803-279.0 STRAIN RELIEF,CG100-750,1" YEL(10-4COR 307.0, 308.0, 310.0) 8.716-564.0 STRAIN RELIEF,CG100-950 1' GRY(6/4 COR (306.0, 309.0) 9.802-765.0 SCREW, 1/4" X 1/2", BH SOC CS 9.802-760.0 SCREW, 1/4" X 1/2", BH SOC C/S, SS STAINLESS OPTION 9.802-817.0 WASHER, 3/8"...
  • Page 24 Karcher HD PART NO. DESCRIPTION NOTES (301.0, 302.0, 303.0, 304.0, 305.0, 9.802-762.0 SCREW, 10/32" X 1-1/4" RH, SL 306.0, 307.0, 308.0, 309.0, 310.0) 9.802-762.0 SCREW, 10/32" X 1-1/4" RH, SL - (300.0) (303.0, 304.0, 305.0, 9.802-759.0 SCREW, 10/32" X 1/2" BHSOC 306.0, 307.0, 308.0) 9.802-695.0 NUT, 10/32"...

  • Page 25: Hose & Spray Gun

    Hose & Spray Gun For Nozzles, See Karcher HD Exploded View PART NO. DESCRIPTION NOTES 9.802-166.0 COUPLER, 3/8” FEMALE 9.802-100.0 QUICK COUPLER O-RING 8.917-057.0 HOSE, 3/8” X 50', 1 WIRE 4.775-054.0 EASY! FORCE ADVANCED KNA 9.802-219.0 WAND W/SIDE GRIP 8.712-398.0 NOZZLE, SOAP, BRASS 9.802-164.0 COUPLER, 1/4”...
  • Page 26 Pump Time Delay Shutdown Option Auto Start/Stop Option Karcher HD 300-310 Operator’s Manual 9.800-086.0 - BH...
  • Page 27 Pump PART NO. DESCRIPTION NOTES 8.750-298.0 UNLOADER, VRT3, 8 GPM @3630 PSI 8.757-616.0 ELBOW STEEL 1/2 JIC (M) x 3/8 BSPP (M) 8.757-656.0 ADAPTER SWIVEL STEEL 1/2 JICX3/8 NPTF(M) 8.757-262.0 ELBOW, 1/2" 45° SAE X 3/8" M-NPTF, BRASS 8.757-619.0 ADAPTER 1/2 BSPP (M) X 1/2 NPTF (M) 8.757-485.0 TEE, 1/2", BRASS 8.757-200.0...
  • Page 28 KBP Series Pump TORQUE SPECS Item # Ft.-lbs 23* 12* TORQUE SPECS ITEM # FT. LBS. PART NO. DESCRIPTION NOTES 8.754-841.0 CRANKCASE PLUNGER OIL SEAL SEE TABLE KITS 8.758-216.0 SPACER "O" RING Ø1.78X26.7 SEE TABLE KITS "U" SEALS SEE TABLE KITS PRESSURE RING SEE TABLE KITS "U"...
  • Page 29 KBP Series Pump PART NO. DESCRIPTION NOTES VALVE SEAT SEE TABLE KITS VALVE PLATE SEE TABLE KITS VALVE SPRING SEE TABLE KITS VALVE CAGE SEE TABLE KITS 9.802-939.0 SCREW, M6 X 16 8.717-137.0 BEARING COVER 9.803-954.0 BEARING SEAL 8.754-843.0 SEAL SPACER, CRANKSHAFT 9.802-914.0 SNAP RING, 25 MM 9.803-955.0...

  • Page 30: Km.3 Series Pump

    KM.3 Series Pump 8.751-186.0 KM3540R.3 8.751-187.0 KM4030R.3 8.751-188.0 KM4030L.3 8.751-189.0 KM4035R.3 8.751-190.0 KM4035L.3 8.751-191.0 KM5030R.3 8.751-192.0 KM5030L.3 TORQUE SPECS Item # Ft.-lbs PART NO. DESCRIPTION NOTES 8.751-216.0 CRANKCASE PLUNGER OIL SEAL SEE KITS TABLE O-RING Ø1.78 X 31.47 SEE KITS TABLE PRESSURE RING SEE KITS TABLE U-SEAL...
  • Page 31 KM.3 Series Pump PART NO. DESCRIPTION NOTES 8.717-210.0 CLOSED BEARING HOUSING 9.803-192.0 O-RING Ø1.78 X 60.05 8.933-011.0 TAPERED ROLLER BEARING 8.751-222.0 CRANKSHAFT (5030,3540) 8.751-223.0 CRANKSHAFT (4030, 4035) 9.803-167.0 CRANKSHAFT KEY 9.802-921.0 OIL DIP STICK 9.803-140.0 CRANKSHAFT SEAL 9.803-178.0 SHIM 8.717-209.0 BEARING HOUSING PLUNGER NUT, M8 SEE KITS TABLE...
  • Page 32 VB8 Unloader Valve 9.802-362.0 PA 8@3650 Karcher HD 300-310 Operator’s Manual 9.800-086.0 - BH...
  • Page 33 VB8 Unloader Valve PART NO. DESCRIPTION NOTES 8.705-749.0 3/8 BSP F OUTLET FITTING 8.704-218.0 O-RING 1.78 X 18.77 MM 60.0053.51 0SPRING 60.0052.31 CHECK VALVE 8.704-230.0 O-RING 3 X 6 MM 60.1215.35 VB8 BRASS BODY 10.3170.08* O-RING 2,.62 X 7.6 MM 60.1206.51 PISTON 10.3001.01*...

  • Page 34: Vrt3 Unloader

    VRT3 Unloader 8.750-297.0, 8 GPM, 2320 PSI 8.750-298.0, 8 GPM, 3630 PSI 8.750-299.0, 8 GPM, 4500 PSI PART NO. DESCRIPTION NOTES 8.750-713.0 OUTLET FITTING 8.750-712.0 KNOB, UNLOADER 8.750-709.0 REPAIR KIT, VRT3, 2320/3630 PSI 8.750-710.0 REPAIR KIT, VRT3, 4500 PSI (KIT ITEMS: 3, 4, 6, 9-12, 21, 24) Karcher HD 300-310 Operator’s Manual 9.800-086.0 - BH...
  • Page 35 VRT3 Unloader Unloader Adjustment Procedures 1. Remove lock nut (Item 19). 2. Remove adjustment knob (Item 18). 3. Loosen the two (2) nuts (Item 15), move them upward on stem (Item 8) until you see 4 or more threads below the nut.
  • Page 36 THANK YOU! DANKE! MERCI! GRACIAS! Register your product and benefit from many advantages. Enregistrez votre produit et bénéficiez de nombreux avantages. Registre su producto y aproveche de muchas ventajas. Registrieren Sie Ihr Prudukt und Sie von vielen Vorteilen. www.kaercher.com/welcome Rate your product and tell us your opinion. Évaluez votre produit et donnez-nous votre opinion.

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