® OPERATOR’S MANUAL MODEL # HD 2.5/27 P AL HD 3.0/30 P AL HD 3.8/35 P AL HD 3.5/40 P AL ORDER # 1.107-129.0 1.107-130.0 1.107-131.0 1.107-227.0 To locate your local Kärcher Commercial Pressure Washer Dealer nearest you, visit www.karchercommercial.com 8.917-984.
CONTENTS Important Safety Information ................................................................4-6 Component Identification ......................................................................... 7 Assembly Instructions .............................................................................. 8 Operating Instructions.........................................................................9-10 Detergent and General Operating Techniques ......................................
PRESSURE WASHER OPERATOR’S MANUAL INTRODUCTION & IMPORTANT SAFETY INFORMATION Thank you for purchasing this Pressure Washer. WARNING 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. Warning information should be emphasized and understood.
8. When in use , do not place machine near flammable objects as the engine is hot. 9. Do not store or use gasoline near this machine. WARNING: Risk of injury. Hot WARNING surfaces can cause burns. Use only designated gripping areas of spray gun and wand. Do not place hands or feet on non-insulated areas of the pressure washer. RISK OF INJURY. HOT SURFACES 10. Transport/Repair with fuel tank CAN CAUSE BURNS EMPTY or with fuel shut-off valve OFF. 11.
PRESSURE WASHER OPERATOR’S MANUAL IMPORTANT SAFETY INFORMATION 20. Never run pump dry or leave spray gun closed longer than 1-2 minutes. 21. Machines with shut-off spray gun should not be operated with the spray gun in the off position for extensive periods of time as this may cause damage to the pump. 22. Protect discharge hose from vehicle traffic and sharp objects. Inspect condition of high pressure hose before using or bodily injury may result. 23. Before disconnecting discharge hose from water outlet.
PRESSURE WASHER COMPONENT IDENTIFICATION Pump for 131.0 & 227.0 Models Pressure Nozzle Spray Gun Detergent Bucket (not included) Pump OPERATOR’S MANUAL Straight Through Wand Trigger ENGINE Unloader PUMP Pump Protector Hose Detergent Inlet Screen High Pressure Hose Starter Grip Detergent Injector (Not Included) Pump — Develops high pressure. Starter Grip — Used for starting the engine manually.
PRESSURE WASHER OPERATOR’S MANUAL ASSEMBLY INSTRUCTIONS Rotary Tube-Joint Nut Handle Nut Washer Frame Assy Hose Hanger Bolt STEP 1: Insert rotary joints into frame tubes so that stops point away from engine. Then fix them using 1/4" bolts and nuts on each side and tighten. STEP 2: Adjust handle at the desired position. Spray Gun/Wand Spray Gun Safety Latch STEP 3: Use the nut and washer to attach the hose hanger.
Dipstick Oil Dipstick Oil Window STEP 2: Remove shipping cap and install oil dipstick. Check pump oil level by using dipstick or observe oil level in oil window (if equipped). Use 40 wt. non detergent oil. OPERATOR’S MANUAL STEP 1: Check engine oil level. Oil level should be level with the bottom of the oil filler neck. Be sure the machine is level when checking the oil level. (Refer to the engine's operating manual included with machine.
PRESSURE WASHER OPERATOR’S MANUAL OPERATING INSTRUCTIONS On-Off Switch STEP 8: Turn the engine switch to "On" position. On Vanguard engines, move the throttle lever to "Fast" position, shown on the engine as a rabbit. STEP 9: 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.
WARNING WARNING: Some detergents may be harmful if inhaled or ingested, causing severe nausea, fainting or poisoning. The harmful elements may cause property damage or severe injury. Soap Nozzle Quick Coupler Strainer Detergent Injector (Not Included) Discharge Nipple High Pressure Hose CLEANING TIPS Pre-rinse cleaning surface with fresh water.
PRESSURE WASHER OPERATOR’S MANUAL SHUTTING DOWN AND CLEAN-UP On-Off Switch STEP 1: Remove detergent suction tube from container and insert into one gallon of fresh water. Slide nozzle forward for low pressure or to connect black detergent nozzle. Pull trigger on spray gun and siphon water for one minute. STEP 2: Turn off the engine. STEP 3: Turn off water supply. Pump Water Inlet Safety Latch Discharge Nipple STEP 4: Press trigger to release water pressure.
PROBLEM POSSIBLE CAUSE SOLUTION LOW OPERATING PRESSURE Insufficient water supply. Closed faucet. Inlet hose kinked Use larger garden hose; clean inlet water screen. Open faucet. Clogged inlet hose strainer Check plumbing system for leaks. Retape leaks with teflon tape. Faulty or mis-adjusted unloader valve Adjust unloader for proper pressure. Install repair kit when needed. Call local distributor. Worn packing in pump Call Dealer Customer Support.
PRESSURE WASHER Troubleshooting Guide TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION ENGINE OPERATES FOR 15 MINUTES THEN STOPS Not enough gas or engine oil Fill tank with gas. Check oil level. Vapor lock developed by heat of day Keep gas tank full to avoid vapor locking. Obstruction in fuel filter Clean or replace fuel filter. ENGINE LACKS POWER Dirty air filter Replace air filter. ENGINE FALTERS Choke is opened too soon Move choke to halfway position until engine runs smoothly.
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. Regular preventative maintenance will add many hours to the life of your pressure washer. Perform maintenance more often under severe conditions.
PRESSURE WASHER HOSE & SPRAY GUN ASSEMBLY 6 3 OPERATOR’S MANUAL 2 4 1 5 HOSE & SPRAY GUN ASSEMBLY PARTS LIST ITEM PART NO. DESCRIPTION QTY 1 8.739-026.0 8.739-011.0 8.739-021.0 Hose, 3/8” X 50’ 1 Wire Tuff-Skin (PCA Models) Hose, 3/8” X 50’ 1 Wire Tuff-Skin (DBA Models) Hose, 3/8” X 50’ 1 Wire Tuff-Skin (HD and DGA Models) 1 1 1 2 8.750-247.0 Gun, M407 1 3 8.783-039.0 8.783-040.
Check pump oil and engine oil level before first use of your new pressure washer. 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 PRESSURE WASHER OIL CHANGE RECORD OPERATOR’S MANUAL 17 HD • 8.917-984.0 • Rev.
® Form #8.917-984.0 • HD • Revised 01/14 • Printed in U.S.A.
