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DeWalt DPD3800, Instruction Manual

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DeWalt DPD3800 Instruction Manual Download Page 15

15

English

Pump

note:

 The pump was filled with oil at the factory. 

  1. Change pump oil after the first 10 hours of operation and every 

250 hours thereafter.

to check oIL

  1. The oil level should come to the 

Q

AA

Z

dot  in  the  middle  of  the  sight 

glass (Z).

hoW to chanGe PuMP oIL

  1. Loosen pump oil plug (Q).
  2. Place  a  container  under  the  oil 

drain plug (AA).

  3. Remove pump oil drain plug.
  4. After  oil  is  drained,  replace  oil 

drain plug. Tighten securely.

  5. 

Remove pump 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.

nozzle cleaning

If the nozzle becomes clogged with foreign materials, such as dirt, 

excessive  pressure  may  develop.  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 

Y

spray  wand.  Remove  any  obstructions 

with the nozzle cleaning tool (Y) provided 

and back flush with clean water.

  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 (U) should be checked periodically and cleaned if 

necessary.
  1. Remove the filter screen (U) by grasping the

U

 

end  and  removing  it  from  water  inlet  of 

pump.

  2. Clean filter by flushing it with water on both 

sides.

  3. Reinsert filter into water inlet of pump. Cone 

side faces out.

note:

 Do not operate pressure washer without 

filter properly installed.

To remove Tires

  1. Using  a  1/8"  (3.2    mm)  hex  head  wrench

 

loosen set screw in hub collar.

  2. Slide  hub  collar  from  axle  and  remove  the 

tire. 

Summary of Contents for DPD3800

Page 1: ... instrucciones INSTRUCTIVO DE OPERACIÓN CENTROS DE SERVICIO Y PÓLIZA DE GARANTÍA ADVERTENCIA LÉASE ESTE INSTRUCTIVO ANTES DE USAR EL PRODUCTO If you have questions or comments contact us Pour toute question ou tout commentaire nous contacter Si tiene dudas o comentarios contáctenos 1 800 4 DeWALT www dewalt com ...

Page 2: ...p J Engine K Choke control L Throttle control lever M Fuel valve lever N Gas cap O Handle assembly P High pressure hose Q High pressure pump DPD3800 Pressure Washer Engine Refer to the engine instruction manual for location and operation of other engine controls Pump Specifications cAT 67DX Oil Use DP70 Oil Capacity 10 8 oz 319 4 ml FIG 1 j C E P k O a F B q H G N L m I D ...

Page 3: ...Please read the manual and pay attention to these symbols DANGER Indicates an imminently hazardous situation which if not avoided will result in death or serious injury WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury CAUTIO...

Page 4: ...alifornia to cause cancer and birth defects or other reproductive harm In addition some cleaning products and dust contain chemicals known to the State of California to cause cancer and birth defects or other reproduc tive harm Wash hands after handling Save these instructions DANGER Risk of explosion or fire What can happen How to prevent it Spilled gas o line and it s vapors can be come ignited ...

Page 5: ...ga rag es base ments etc Never op er ate unit in a lo ca tion occupied by humans or animals DANGER RISK TO BREATHING Asphyxiation continued Some clean ing fluids con tain sub stanc es which could cause injury to skin eyes or lungs Use only clean ing fluids spe cif i cal ly rec om mend ed for high pressure washers Fol low manufacturers recommendations Do not use chlorine bleach or any other corrosi...

Page 6: ...e hose and fit tings are tight ened and in good condition Never hold onto the hose or fittings during op er a tion Do not allow hose to contact muf fler Never attach or remove wand or hose fittings while sys tem is pres sur ized 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 ...

Page 7: ...running If proper starting procedure is not followed engine can kickback causing serious hand and arm injury If engine does not start after two pulls squeeze trigger of gun to relieve pump pressure Pull starter cord slowly until resistance is felt Then pull cord rapidly to avoid kickback and prevent hand or arm injury The spray gun wand is a powerful clean ing tool that could look like a toy to a ...

Page 8: ...y trans port fuel in an OSHA approved container Al ways place pressure washer on a protective mat when transporting to protect against dam age to vehicle from leaks Always transport and store unit in an upright position Re move pres sure washer from vehicle immediately upon arrival at your destination WARNING RISK of Bursting What can happen How to prevent it Over inflation of tires could result i...

Page 9: ... not be able to recognize the haz ards of this product WARNING RISK of chemical burn What can happen How to prevent it Use of acids toxic or corrosive chemicals poisons in sec ti cides or any kind of flam ma ble solvent with this product could re sult in se ri ous injury or death Do not spray ac ids gasoline ker o sene or any other flammable materials with this product Use only household de ter ge...

Page 10: ...er B onto the panel assembly A and push each nozzle holder into place 6 Removethefivecoloredquick connect nozzles from the B A plastic bag and insert them into correct grommet on the nozzle holder Nozzles are color coded to match colored nozzles on panel assembly NOTE The high pressure pump was filled with oil at the factory Always check oil level before using refer to Maintenance for more informa...

Page 11: ...k connect coupler and twist nozzle to make sure it is secure in coupler 1 Back away from the sur face to be cleaned The further away you are the less the pressure will be on the surface to be cleaned 2 Change to the 40 nozzle white This nozzle delivers a less powerful stream of water and a wider spray pattern Refer to Spray Wand Nozzles Caution DO NOT attempt to increase pump pressure A higher pre...

Page 12: ...anual and the engine instruction manual before starting pressure washer DANGER Risk of fluid injection and laceration When using the high pressure setting DO NOT allow the high pressure spray to come in contact with unprotected skin eyes or with any pets or ani mals Serious injury will occur Your washer operates at fluid pressures and velocities high enough to penetrate human and animal flesh whic...

Page 13: ...ld water source V to pump inlet NOTE Water source must provide a minimum of 5 gallons per minute at 20 pSI 138 kPa Warning To reduce the possibility of contami nation always protect against backflow when con nected to a potable water system 6 Connect high pressure hose P to pump v p outlet 7 If applying a chemical or cleaning solution refer to Chemicals and Cleaning Solvents 8 Turn the water sourc...

Page 14: ...ile pressure washer engine is running or damage to pump will result 4 Turn water source off 5 Pull trigger on spray gun to relieve any water pressure in hose or spray gun 6 Refer to Storage for proper storage procedures MAINTENANCE WARNING Risk of burning When performing maintenance you may be exposed to hot surfaces water pressure or moving parts that can cause serious injury or death WARNING Ris...

Page 15: ... 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 Y spray wand Remove any obstructions with the nozzle cleaning tool Y provided and back flush with clean water 5 Direct water supply into spray wand to back flush loosened particles for 30 seconds...

Page 16: ...t of pump 4 Add RV antifreeze to hose as shown 5 Pull engine starter rope slowly several times until an ti freeze comes out of high pressure hose con nec tion of pump 6 Remove garden hose from water inlet of pump 7 Reconnect spark plug wire Pressure Washer 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...

Page 17: ...s from date of purchase DeWALT will repair without charge any defects due to faulty materials or workmanship This warranty does not cover parts that are damaged through misuse or abuse or parts which must be replaced from time to time due to normal pressure washer operation Normal wear parts include but are not limited to the engine air filter spark plug pump valve seals and O rings This warranty ...

Page 18: ... Nozzles Thermal relief valve When the temperature inside the pump rises too high the valve will open and release a gush of water in an effort to lower the temperature inside the pump The valve will then close Water supply All pressure washers must have a source of water The minimum requirements for a water supply are 20 PSI 138 kPa and 5 gallons per minute Troubleshooting Guide This section provi...

Page 19: ...e closed Move the fuel valve lever to the Open position 9 Spray wand not in high pressure See Spray Wand Nozzles under Operation 10 Low water supply Water supply must be at least 5 GPM 20 pSI 138 kPa 11 Leak at high pressure hose fitting Repair leak Apply sealant tape if necessary 12 Nozzle obstructed See Nozzle Cleaning under Maintenance 13 Water filter screen clogged Remove and clean filter 14 A...

Page 20: ...enter 23 Worn or obstructed valves Have replaced by authorized service center 24 Worn unloader piston Have replaced by authorized service center 25 Worn or broken o ring Check and replace 26 Loose hose connection Tighten 27 Piston packings worn Have replaced by authorized service center 28 Pump head or tubes damaged from freezing Have replaced by authorized service center 29 Oil seals worn Have re...

Page 21: ...PD3800 Copyright 2008 DeWALT The following are trademarks for one or more DeWALT power tools the yellow and black color scheme the D shaped air intake grill the array of pyramids on the handgrip the kit box configuration and the array of lozenge shaped humps on the surface of the tool ...

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