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User manual DeWalt, model DP3900

Manafacture: DeWalt
File size: 5.57 mb
File name:
Language of manual:enesfr
Free link for this manual available at the bottom of the page



manual abstract


If the nozzle becomes partially clogged or restricted, the pump pressure will pulsate. Clean the nozzle immediately using the nozzle kit supplied and the following instructions: 1. Shut off the pressure washer and turn off the water supply. 2. Pull trigger on gun handle to relieve any water pressure. 3. Disconnect the spray wand from the gun. 4. Remove the high-pressure nozzle from the spray wand. Remove any obstructions with the nozzle cleaning tool (BB) provided and back flush with clean water. BB HOW TO CHANGE PUMP OIL 1. Loosen pump dipstick/oil plug (H). 2. Place a container under the oil drain plug (AA). 3. Remove pump oil drain plug. 4. After oil is drained, replace H Z AA oil drain plug. Tighten securely. 5. Remove pump dipstick/oil plug and fill with 14 oz. (414 ml) of DP70 pump oil. If DP70 is not available use 30W non-detergent oil. 6. Replace pump dipstick/oil plug and tighten securely. 5. Direct water supply into spray wand to back flush loosened particles for 30 seconds. 6. Reassemble the nozzle to the wand. 7. Reconnect spray wand to gun then turn on water supply. 8. Start pressure washer and place spray wand into high pressure setting to test. To Clean the Water Inlet Filter This filter screen (V) should be checked periodically and cleaned if necessary. 1. Remove the filter screen (V) by grasping the end and removing it from water inlet of pump. 2. Clean filter by flushing it with water on both sides. V V 14 3. Reinsert filter into water inlet of pump. Cone side faces out. NOTE: Do not operate pressure washer without fi lter properly installed. To Remove Tires 1. Using a 1/8" hex head wrench loosen set screw in hub collar. 2. Slide hub collar from axle and remove the tire. STORAGE Engine Consult the engine instruction manual for the manu fac tur er's recommendations for storage. Pump The manufacturer recommends using a pump protector/winterizer, such as DP80 when storing the unit for more than 30 days and/or when freezing temperatures are expected. DP80 is availabe at the store where the pressure washer was purchased. If a pump protector/ winterizer is not available, RV antifreeze or windshield washer fluid needs to be run through the pump as outlined in the steps below. NOTE: Using a pump protector/ winterizer, RV antifreeze or windshield washer fluid is to provide proper lubrication to the internal seals of the pump regardless of temperature or environment. 1. Obtain a funnel, 6 oz. (170 mL) of RV antifreeze or windshield washer fluid, and 16–36" (40–91cm) of garden hose with a male hose connector attached to one end. CAUTION: Risk of property damage. Use only RV antifreeze. Any other an ti freeze is corrosive and can damage pump. 2. Disconnect spark plug wire. 3. Connect length of garden hose to water inlet of pump. 4. Add RV antifreeze or windshield washer fluid to hose as shown. 5. Pull engine starter rope slowly several times until an ti freeze/ washer fluid comes out of high- pressure hose con nec tion of pump. 6. Remove garden hose water inlet of pump. 7. Reconnect spark plug wire. Pressure Washer from 1. Drain all water from high- pressure hose, coil it and store it in cradle of the pressure washer handle. 2. With nozzle pointed down and the spray gun and wand in a vertical position, squeeze trigger to drain all water from spray gun and wand. Store in gun holder. 3. Store chemical hose so it is protected from dam age. 4. If space is needed, handles may be removed and attached as shown. CAUTION: Risk of personal injury. Avoid placing hands between handle and frame when assembling to prevent pinching. ACCESSORIES Recommended accessories for use with your tool are available for purchase from your local dealer or authorized service center. If you need assistance in locating any accessory for your tool, please contact DEWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286, call 1-800-4-DEWALT (1-800-433-9258) or visit our website English 15 16 English DANGER: Risk of fluid injection. When using replacement lances or guns with this pressure washer, DO NOT use a lance and/or lance/gun combination that is shorter in length than what was provided with this pressure washer as measured from the nozzle end of the lance to the gun trigger. CAUTION: The use of any other accessory not recommended for use with this tool could be hazardous. Use only accessories rated equal to or higher than the rating of the pressure washer. SERVICE INFORMATION Please have the following information available for all service calls: Model Number ____________ Serial Number ___________ Date and Place of Purchase ____________________________ Repairs To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment should be performed by a DEWALT factory service center, a DEWALT authorized service center or other qualified service personnel. Always use identical replacement parts. Limited Warranty DEWALT pressure washers are warranted for one year from the date of purchase. DEWALT...

Other models in this manual:
Pressure Washers - GX390 (5.57 mb)
Pressure Washers - A20832 (5.57 mb)

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