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OPERATOR’S MANUAL MODEL # ORDER # HDS 2.7/25 P Cage 1.575-555.0 HDS 2.6/30 P Cage 1.575-550.0 HDS 3.5/30 P Cage 1.575-551.0 HDS 3.5/30 PE Cage 1.575-552.0 HDS 3.5/35 PE Cage 1.575-553.0 To locate your local Kärcher Commercial Pressure Washer Dealer nearest you, visit www.karchercommercial.com...
20-21 Exploded View Parts Lists 22-25 Control Panel - 555.0 & Parts List 26-27 Control Panel - 550.0, 551.0, 552.0, 553.0 & Parts List 28-29 Hose & Spray Gun Assembly & Parts List Downstream Injector Assembly Hose Reel Option UU1 Unloader Exploded View and Parts List KS.3 Pump Exploded View and Parts List...
INTRODUCTION & IMPORTANT SAFETY INFORMATION Thank you for purchasing this Pressure Washer. WARNING: This machine exceeds WARNING We reserve the right to make changes at any time 85 db appropriate ear protection without incurring any obligation. must be worn. 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.
IMPORTANT SAFETY INFORMATION Gasoline engines on mobile or portable equipment WARNING: Grip cleaning wand WARNING shall be refueled: securely with both hands before starting. Failure to do this could a. outdoors; result in injury from a whipping b. with the engine on the equipment stopped; wand.
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IMPORTANT SAFETY INFORMATION WARNING: Be extremely careful WARNING when using a ladder, scaffolding or any other relatively unstable location. The cleaning area should have adequate slopes and drainage to reduce the pos- sibility of a fall due to slippery RISK OF INJURY surfaces.
ASSEMBLY INSTRUCTIONS Pressure Spray Soap Nozzle Nozzle Wand Coupler Safety Wand Latch Coupler Wand Collar High Pressure Hose STEP 1: Attach the high STEP 2: Pull the spring-loaded collar STEP 3: Release the coupler collar pressure hose to the spray of the wand coupler back to insert your and push the nozzle until the collar gun using teflon tape on hose...
OPERATING INSTRUCTIONS Oil Dipstick Tank STEP 1: Check engine oil level. Oil level should be level with the bottom STEP 2: Fill gas tank with unleaded of the oil filler neck. Be sure the machine is level when checking the oil gasoline.
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OPERATING INSTRUCTIONS Throttle STEP 7: Turn the engine to "Run" position. STEP 8: Pull the starter grip. If the engine fails to start after 2 pulls, squeeze the trigger gun to release pressure and repeat step. Return starter gently. After the engine warms up enough to run smoothly, move choke to run position and throttle to fast position.
DETERGENTS AND CLEANING TIPS THERMAL PUMP PROTECTION WARNING: Some detergents WARNING may be harmful if inhaled or in- If you run the engine on your pressure washer for 3-5 gested, causing severe nausea, minutes without pressing the trigger on the spray gun, fainting or poisoning.
SHUTTING DOWN AND CLEAN-UP On-Off Switch STEP 1: Remove detergent suction STEP 2: Turn off the engine. STEP 3: Tur n off water tube from container and insert into supply. 1 gallon of fresh water. Turn variable pressure wand handle for low pres- sure or connect the black detergent nozzle.
MAINTENANCE During winter months, when temperatures drop below PREVENTATIVE MAINTENANCE 32°F, protecting your machine against freezing is nec- essary. Store the machine in a heated room. If this is not 1. Check to see that the water pump is properly lubri- possible then mix a 50/50 solution of anti-freeze/water cated.
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MAINTENANCE Fuel: Burner Nozzle: Use clean fuel oil that is not contaminated with water Keep the tip free of surface deposits by wiping it with a and debris. Replace fuel filter and drain tank every 100 clean, solvent-saturated cloth, being careful not to plug hours of operation.
1. Remove the tank head assembly by lifting the tank fuel pump will not prime. head off. Karcher Clear Fire Oil Burner 2. Remove the two pipe nipples and associated fit- tings. Burner Air Adjustment: The oil burner on this machine is preset for operation at altitudes below 1000 feet.
TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION LOW OPERATING Water supply is insufficient Use larger supply hose; clean filter at water inlet. PRESSURE Spray nozzle is old, worn or Match the nozzle number to the machine incorrect and/or replace with new nozzle. Belt slips Tighten or replace belt;...
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TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION BURNER WILL Burner nozzle is clogged Clean as required. NOT LIGHT Thermostat has malfunctioned Test and replace if needed. (continued from previous page) Fuel solenoid has malfunctioned Test and replace if needed. MACHINE Fuel is improper or water is in fuel Drain tank and replace contaminated fuel.
TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION DETERGENT NOT Air is leaking Tighten all clamps. Check detergent lines for holes. DRAWING Injector head may be blocked, Clean and make sure ball and spring behind dirty or damaged detergent hose barb or injector body are working properly.
MAINTENANCE CHARTS 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 maintenance procedures will assist in preserving the performance of your equipment. Contact your dealer for maintenance.
EXPLODED VIEW - 555.0 MODELS Reversed View Reversed View of labels of label s or tion s che s Eq tain atio 7-01 t con tion rt Fir . The 8.91 n Sta s or s.” a to t Ca “Th lifo s Tha...
EXPLODED VIEW - 550.0, 551.0, 552.0, 553.0 MODELS Reversed View of labels Detail See Control Box Illus. Reversed View of Component For Brake Honda Electric Detail See Start Only View A-A (Enlarged) pg. 21 9.800-079.0 • Rev. 05/14...
CONTROL PANEL - 550.0, 551.0, 552.0, 553.0 1, 23 550.0, 551.0, 552.0, 553.0 CONTROL PANEL PARTS LIST ITEM PART NO. DESCRIPTION 8.750-094.0 Thermostat, Adjustable, 302°F 9.803-035.0 Cover, Electric Box, Black 9.802-759.0 Screw, 10/32" x 1/2" BHSOC, Black 9.802-485.0 Breaker, 1658-G41-02-P10-25A 9.802-525.0...
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550.0, 551.0, 552.0, 553.0 CONTROL PANEL PARTS LIST ITEM PART NO. DESCRIPTION 9.802-453.0 Switch, Curvette RA901VB-B-1-V, Carling 9.802-519.0 Strain Relief, 1/2" Metal, Two Screw 9.802-514.0 Strain Relief, Small 9.803-071.0 Box, Electric, Black 9.802-788.0 Nut, 5/16" Whiz Loc Flange 9.802-530.0 Rectifier, Bridge (552.0, 553.0) 9.802-470.0...
KS3540GR.3 PUMP EXPLODED VIEW 8.751-194.0 KS3540GR.3 TORQUE SPECS Item # Ft.-lbs KS3540GR.3 PUMP EXPLODED VIEW PARTS LIST ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 8.751-217.0 Crankcase 8.717-225.0 O-Ring Ø 2.62 x61.6 See Kit Below Plunger Oil Seal 9.802-914.0 Snap Ring See Kit Below O-Ring Ø1.78 x 31.47 9.803-168.0...
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KS3540GR.3 PUMP EXPLODED VIEW PARTS LIST (CONT.) ITEM PART NO. DESCRIPTION See Kit Below O-Ring Ø1.78x5.28 See Kit Below Teflon Ring 8.751-225.0 Plunger Rod 8.751-228.0 Connecting Rod Pin 9.803-158.0 Connecting Rod 9.803-218.0 Spring Washer 9.803-238.0 Connecting Rod Screw 8.933-016.0 O-Ring 2.62 x 126.67 8.751-229.0 Crankcase Cover 9.803-197.0...