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® OPERATOR’S MANUAL MODEL # ORDER # MODEL # ORDER # HD 2.8/10 ST Ed B / CB-301007D 1.575-300.0 HD 3.5/30 ST Ea B / CB-353007A 1.575-306.0 HD 3.5/30 ST Eb B / CB-353007B 1.575-307.0 HD 4.2/20 ST Ea B / CB-402007A 1.575-301.0...
INTRODUCTION & IMPORTANT SAFETY INFORMATION connected to a power supply receptacle protected Thank you for purchasing this Pressure Washer. by a GFCI. We reserve the right to make changes at any time without incurring any obligation. DANGER: Improper connection of the equip- ment-grounding conductor can result in a risk Owner/User Responsibility: of electrocution.
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IMPORTANT SAFETY INFORMATION WARNING: Be extremely careful WARNING: Grip cleaning wand WARNING WARNING when using a ladder, scaffolding securely with both hands before or any other relatively unstable starting. Failure to do this could location. The cleaning area result in injury from a whipping should have adequate slopes wand.
ASSEMBLY INSTRUCTIONS Nozzle Spray Safety Coupler Latch High Pressure Hose STEP 1: Attach the high pressure STEP 2: Connect garden hose STEP 3: Insert nozzle into coupler. hose to the spray gun using teflon to the cold water source. Before Release the coupler collar and push tape on hose threads.
OPERATING INSTRUCTIONS Cold Water Source Garden Hose STEP 1: Connect garden hose to STEP 2: Trigger the spray gun to STEP 3: Connect to appropriate the cold water source and turn water eliminate trapped air then wait for a power supply. Push GFCI reset on completely.
DETERGENTS AND GENERAL OPERATING TECHNIQUES WARNING: Some detergents THERMAL PUMP PROTECTION WARNING may be harmful if inhaled or If you run your pressure washer for 2 minutes without ingested, causing severe nau- pressing the trigger on the spray gun, circulating water sea, fainting or poisoning.
SHUTTING DOWN AND CLEAN-UP STEP 1: Remove deter- STEP 2: Turn off machine STEP 4: Press trigger to STEP 3: Turn off water gent suction tube from by pushing switch on front release water pressure. supply. soap container and in- panel.
TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION PUMP RUNNING NOR- Pump sucking air Check water supply and possibility of air. MALLY BUT PRES- Check valves sticking Check and clean or replace if necessary. SURE LOW Unloader valve seat faulty Check and replace if necessary. ON INSTALLATION Nozzle incorrectly sized Check and replace if necessary.
PREVENTATIVE 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 pre- ventative maintenance procedure will assist in preserving the performance of your equipment. Contact your dealer for maintenance.
EXPLODED VIEW Enlarged Reverse View Time Delay Option Auto Start Option Auto Start Option Detail See Pump Assy. 1.575-300.0 98000860-1 HD 300-310_9.800-086.0 • Rev. 7/10...
SPECIFICATIONS Motor Pulley Motor Motor Motor Motor Belt Belt Contractor Overload Model Part No. Pulley Part No. Bushing Part No. Size Part No. Part No. Part No. 300.0 9.802-339.0 AK32x5/8 9.804-004.0 AX40 (1) 9.804-005.0 8.724-268.0 301.0 9.802-336.0 2AK56H 9.802.373.0 HX1-1/8" 9.802-400.0 AX42 (2) 9.802-411.0...
VB8 UNLOADER VALVE EXPLODED VIEW 5-3027 VB8 UNLOADER VALVE EXPLODED VIEW PARTS LIST ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 60.0058.31 3/8 Bsp F Outlet Fitting 60.1210.31 Upper Frame 10.3070.02* O-ring 1.78 x 18.77 mm 14.7421.00 1/4" Ball 60.0053.51 Spring 60.1209.31 Brass Cap...
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KD.1 PUMP EXPLODED VIEW 9.803-417.0 KD 3025.1 9.804-006.0 KD 3030.1 9.804-019.0 KD 4020.1 TORQUE SPECS Item # Ft.-lbs KD.1 PUMP EXPLODED VIEW PARTS LIST ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 9.803-938.0 Crankcase 11* See Kits O-Ring Ø1.78 x 15.54 See Kits Plunger Oil Seal 12* See Kits...
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KD.1 PUMP EXPLODED VIEW PARTS LIST (CONT) ITEM PART NO. DESCRIPTION 8.933-010.0 Crankshaft Seal 34* See Kits Plunger Nut 35* See Kits Copper Spacer 36* See Kits Plunger, 15mm (3030) See Kits Plunger, 18mm (4020, 3025) 37* See Kits Copper Spacer 38* See Kits O-Ring Ø1.78 x 5.28 39* See Kits...
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KM.2 PUMP EXPLODED VIEW PARTS LIST (CONT) ITEM PART NO. DESCRIPTION 9.803-144.0 Plunger Rod 9.803-158.0 Connecting Rod 9.802-913.0 Snap Ring 9.802-916.0 Connecting Rod Pin 9.803-218.0 Spring Washer 9.803-238.0 Connecting Rod Screw 8.933-016.0 O-Ring, Ø2.62 x 126.67 9.803-165.0 Crankcase Cover 9.803-197.0 O-Ring, Ø1.78 x 14 9.803-202.0 Sight Glass 3/4...
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LIMITED NEW PRODUCT Phone: 360-833-1600 ® WARRANTY—COMMERCIAL fax: 800-248-8409 PRESSURE WASHERS www.karchercommercial.com WHAT THIS WARRANTY COVERS All Kärcher commercial pressure washers are warranted by Kärcher to the original purchaser to be free from defects in materials and workmanship under normal use, for the periods specified below. This Limited Warranty, subject to the exclusions shown below, is calculated from the date of the original purchase, and applies to the original components only.
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® www.karchercommercial.com www.karchershark.com HD 300-310 9.800-086.0 • Revised 7/10 • Printed in U.S.A. or Mexico...