Starting

English

NOTE: Chemicals and soaps will not siphon when spray wand is in the high-pressure setting.

Starting

START-UP PROCEDUREWARNING: To reduce the risk of injury, read the pressure washer instruction manual and the engine instruction manual before starting pressure washer.

Manual backgroundDANGER: 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 animals. Serious injury will occur.

Your washer operates at fluid pressures and velocities high enough to penetrate human and animal flesh, which could result in amputation or other serious injury. Leaks caused by loose fit- tings or worn or damaged hoses can result in injection injuries. DO NOT TREAT FLUID INJECTION AS A SIMPLE CUT! See a physician immediately!

Manual backgroundWARNING: Risk of fire, asphyxiation and burning. NEVER fill fuel tank when engine is running or hot. Do not smoke when filling fuel tank.

NEVER fill fuel tank completely. Fill tank to 1/2" (12.7 mm) below bottom of filler neck to provide space for fuel expansion. Wipe any fuel spillage from engine and equipment before starting engine.

NEVER run engine indoors or in enclosed, poorly ventilated areas. Engine exhaust contains carbon monoxide, an odorless and deadly gas.

DO NOT let hoses come in contact with very hot engine muffler during or immediately after use of your pressure washer. Damage to hoses from contact with hot engine surfaces will NOT be covered by warranty.

CAUTION: NEVER pull water supply hose to move pressure washer. This could damage hose and/or pump inlet.

• DO NOT use hot water, use cold water only.

NEVER turn water supply off while pressure washer engine is running or damage to pump will result.

• DO NOT stop spraying water for more than two

U

minutes at a time. Pump operates in bypass

 

mode when spray gun trigger is not pressed.

 

When the temperature inside the pump rises

 

too high the thermal relief valve (U) will open

 

and release a gush of water in an effort to lower

 

the temperature inside the pump. The thermal

 

relief valve will then close. If pump is left in bypass mode for more than two minutes internal components of the pump can be damaged.

START-UP PROCEDURE

1.In a well-ventilated outdoor area, add fresh, high-quality, unleaded gasoline with a pump octane rating of 86 or higher. Do not overfill. Wipe up spilled fuel before starting the engine. Refer to engine instruction manual for correct procedure.

2.Check engine oil level. Refer to the engine instruction manual for correct procedure.

3.Connect the water hose to the water source. Turn the water source on to remove all air from the hose. When a steady stream of water is present, turn the water source off.

4. Verify the filter screen (V) is in water inlet of pump. The cone side faces out.

5. Connect the cold water source (X) to pump inlet. NOTE: Water source must provide a minimum of

5 gallons per minute at 20 PSI.

V

 

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DeWalt GX390, DP3900, A20832 instruction manual Starting, Start-Up Procedure, English