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JOHN DEERE
WORLDWIDE COMMERCIAL & CONSUMER
EQUIPMENT DIVISION
Pressure Washer
3800
OMM156851
OPERATOR’S MANUAL
WARNING
Failure to read and follow the
Operator’s Manual and all operating
instructions can result in death, bodily
injury, and/or property damage. Save
this manual for future reference.
North American Edition
Litho in USA
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INTRODUCTION Read this manual carefully and become familiar with your pressure washer. Know its applications, its limitations and any hazards involved. Thank You for Purchasing a John Deere Product We appreciate having you as a customer and wish you many years of safe and satisfied use of your machine. Using Your Operator’s Manual This manual is an important part of your machine and should remain with the machine when you sell it. Reading your operator’s manual will help you and others avoid per
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PRODUCT IDENTIFICATION RECORD IDENTIFICATION NUMBERS Pressure Washer If you need to contact an Authorized Dealer for information on servicing, always provide the product model and identification numbers. You will need to locate the model, revision and serial number for the machine and record the information in the places provided below. You will also need the model and serial number for the engine on your machine. See the engine operators manual for the location of these numbers. DATE OF PURCHAS
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TABLE OF CONTENTS Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Safety Rules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Unpack Pressure Washer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Attach Handle. . . . . . . . . . . . . . . . . . . . . . .
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SAFETY Understanding The Machine Safety Labels The machine safety label shown below is placed on your machine to draw attention to potential safety hazards. Safety - 1
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SAFETY SAVE THESE INSTRUCTIONS WARNING The engine exhaust from this product contains chemicals Safety Rules known to the State of California to cause cancer, birth defects, or other reproductive harm. This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible WARNING injury or death. Running engine gives off carbon monoxide, an The safety alert symbol ( ) is used with a signal word odorless, co
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SAFETY WARNING WARNING Starter cord kickback (rapid retraction) can result in Fuel and its vapors are extremely flammable and bodily injury. Kickback will pull hand and arm toward explosive. engine faster than you can let go. Broken bones, fractures, bruises, or sprains could Fire or explosion can cause severe burns or death. result. • NEVER pull starter cord without first relieving spray gun pressure. WHEN ADDING OR DRAINING FUEL • When starting engine, pull cord slowly until resistance is felt
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SAFETY WARNING WARNING The high pressure stream of water that this Risk of eye injury. equipment produces can cut through skin and its Spray can splash back or propel objects. underlying tissues, leading to serious injury and • Always wear safety goggles when using this equipment or in vicinity possible amputation. of where equipment is in use. Spray gun traps high water pressure, even when • Before starting the pressure washer, be sure you are wearing engine is stopped and water is disconnected
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ASSEMBLY Your pressure washer requires some assembly and is ready for 3. Attach handle to main unit. use after it has been properly serviced with the recommended oil 4. Add oil to engine crankcase. and fuel. 5. Add fuel to fuel tank. If you have any problems with the assembly of your pressure 6. Connect high pressure hose to spray gun and pump. washer, please call the pressure washer helpline at 7. Connect water supply to pump. (888) 228-3068. If calling for assistance, please have the model, re
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OPERATING Read this operator’s manual and safety rules before operating your pressure washer. Compare the illustration with your pressure washer to familiarize yourself with the locations of various controls and adjustments. Save this manual for future reference. A R B P N M C L D J K , E H G F A - Nozzle Extension with Quick Connect — Allows you to M - Pressure Control Knob — Varies pressure of high pressure switch between five different spray tips. spray. B - Spray Gun with Quick Connect — Con
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OPERATING Daily Operating Checklist WARNING Review the unit’s assembly to ensure you have performed all of The high pressure stream of water that this the following. equipment produces can cut through skin and its 1. Make sure handle is in place and secure. underlying tissues, leading to serious injury and 2. Check that oil has been added to proper level in the engine possible amputation. crankcase. • NEVER connect high pressure hose to nozzle extension. 3. Add proper fuel to fuel tank. • Keep h
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OPERATING Pressure Washer Location How to Start Your Pressure Washer To start your pressure washer for the first time, follow these Clearances and Air Movement instructions step-by-step. This starting information also applies if you have let the pressure washer sit idle for at least a day. WARNING 1. Place pressure washer near an outside water source Exhaust heat/gases can ignite combustibles, capable of supplying water at a flow rate greater than structures or damage fuel tank causing a fire. 5
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OPERATING IMPORTANT: Before starting the pressure washer, be sure you WARNING are wearing adequate safety goggles. The high pressure stream of water that this WARNING equipment produces can cut through skin and its underlying tissues, leading to serious injury and Risk of eye injury. possible amputation. Spray can splash back or propel objects. Spray gun traps high water pressure, even when • Always wear safety goggles when using this equipment or in vicinity engine is stopped and water is disco
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OPERATING 3. Pull back on collar, insert new spray tip and release collar. WARNING Tug on spray tip to make sure it is securely in place. The high pressure stream of water that this Usage Tips equipment produces can cut through skin and its underlying tissues, leading to serious injury and • For most effective cleaning, keep spray tip from 8 to possible amputation. 24 inches away from cleaning surface. Spray gun traps high water pressure, even when • If you get spray tip too close, especially us
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OPERATING 5. Make sure garden hose is connected to water inlet. Check 5. Apply a high pressure spray to a small area and then check that high pressure hose is connected to spray gun and surface for damage. If no damage is found, you can assume pump. Turn on water. it is okay to continue rinsing. 6. Start at top of area to be rinsed, working down with same NOTICE overlapping strokes as you used for cleaning. You must attach all hoses before you start the engine. • Starting the engine without all
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OPERATING 3. Disconnect hose from spray gun and high pressure outlet After Each Use on pump. Drain water from hose, gun, and nozzle Water should not remain in the unit for long periods of time. extension. Use a rag to wipe off the hose. Sediments or minerals can deposit on pump parts and freeze 4. Place the spray gun, nozzle extension, spray tips and high pump action. Follow these procedures after every use: pressure hose on the handle. 1. Flush detergent siphoning tube by placing the filter int
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REPLACEMENT PARTS AND SPECIFICATIONS Service Literature Product Specifications Model 3800 If you would like a copy of the Parts Catalog or Technical Manual Outlet Pressure . . . . . . . . . . . . . . . . . . . . . . .3800 PSI (262 BAR) for this machine call (888) 228-3068 or contact your local dealer. Flow Rate . . . . . . . . . . . . . . . . . . . . . . 4.0 GPM (15.14 liters/min) Water Supply Temperature . . . . . . . . .Not to exceed 100°F (38°C) Pump Oil Capacity . . . . . . . . . . . . . . .
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SERVICE PRESSURE WASHER Cleaning system parts should be kept clean to reduce the risk of MAINTENANCE overheating and ignition of accumulated debris. • Use a damp cloth to wipe exterior surfaces clean. General Recommendations • Use a soft bristle brush to loosen caked on dirt, oil, etc. Regular maintenance will improve the performance and extend the life of the pressure washer. See any qualified dealer for service. • Use a vacuum cleaner to pick up loose dirt and debris. The pressure washer’s war
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SERVICE PRESSURE WASHER Nozzle Maintenance O-Ring Maintenance A pulsing sensation felt while squeezing the spray gun trigger may Purchase an O-Ring/Maintenance Kit, Model 6048, by contacting be caused by excessive pump pressure. The principal cause of the nearest authorized dealer. It is not included with the pressure excessive pump pressure is a spray tip clogged or restricted with washer. This kit includes replacement o-rings, rubber washer and foreign materials, such as dirt, etc. To correct
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TROUBLESHOOTING Using Troubleshooting Chart If you are experiencing a problem that is not listed in this chart, see your authorized dealer for service. When you have checked all the possible cause listed and you are still experiencing the problem, see your authorized dealer. Troubleshooting Chart Problem Cause Correction 1. Low pressure spray tip installed. 1. Replace with high pressure spray tip. 2. Water inlet is blocked. 2. Clear inlet. 3. Inadequate water supply. 3. Provide adequate water fl
