Specifications

PowerBOSS™	3700 PSI Pressure Washer	MAINTENANCE

Rated Pressure . . . . . . . . . . . . . . . . . . . . . . . . . 3,700 PSI

Flow Rate . . . . . . . . . . . . . . 4.0 gallons per minute (gpm) Detergent Use detergent approved for pressure washers

Water Supply

Temperature . . . . . . . . . . . . . . . . . Not to exceed 100°F

Automatic Cool . . . . . . . . . . . . . Will cycle when water

Down Systemreaches 125°-155°FShipping Weight . . . . . . . . . . . . . . . . . . . . . . . . . . 155 lbs.

GENERAL MAINTENANCE RECOMMENDATIONS

The pressure washer warranty does not cover items that have been subjected to operator abuse or negligence.To receive full value from the warranty, the operator must maintain the pressure washer as instructed in this manual.

NOTE: Should you have questions about replacing components on your pressure washer, please call 1-800-743-4115for assistance.

•Some adjustments will need to be made periodically to properly maintain your high pressure washer.

•All maintenance in this manual and the engine operator’s manual should be made at least once each season.

•If equipped with inflatable tires, keep the air pressure at the value marked on the tire or within 15 and 40 psi.

Before Each Use

1.Check engine oil level.

2.Check water inlet screen for damage.

3.Check in-line filter for damage.

4.Check high pressure hose for leaks.

5.Check detergent siphoning hose and filter for damage.

6.Check spray gun, nozzle extension, and nozzles for leaks.

7.Rinse out garden hose to flush out debris.

PRESSURE WASHER

MAINTENANCE

Check and Clean Inlet Screen

Examine the screen on the water inlet. Clean it if the screen is clogged or replace it if screen is damaged.

Check High Pressure Hose

The high pressure hose can develop leaks from wear, kinking, or abuse. Inspect the hose each time before using it. Check for cuts, leaks, abrasions or bulging of cover, damage or movement of couplings. If any of these conditions exist, replace the hose immediately.

WARNING

The high pressure stream of water that this equipment produces can pierce skin and its underlying tissues, leading to serious injury and possible amputation.

•NEVER repair high pressure hose. Replace it.

•Replacement hose rating MUST exceed maximum pressure rating of unit.

Check Detergent Siphoning Hose

Examine the filter on the detergent siphon hose and clean if clogged.The tube should fit tightly on the barbed fitting. Examine the hose for leaks or tears. Replace the filter or hose if either is damaged.

Check Gun and Nozzle Extension

Examine the hose connection to the spray gun and make sure it is secure.Test the trigger by pressing it and making sure it springs back into place when you release it. Put the trigger lock in the on position and test the trigger.You should not be able to press the trigger.

Check In-Line Filter

Refer to Figure 12 and service the in-line filter if it becomes clogged, as follows:

Figure 12 — Clean In-Line Filter

Filter Screen

Nozzle Extension

O-ring

1.Detach spray gun and nozzle extension from high pressure hose. Detach nozzle extension from spray gun and remove o-ring and screen from nozzle extension. Flush screen, spray gun, and adjustable nozzle extension with clean water to clear debris.

2.Place in-line filter screen into threaded end of nozzle extension. Direction does not matter. Push screen in with eraser end of pencil until it rests flat at bottom of opening.Take care to not bend screen.