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PowerBOSS™ 3700 PSI Pressure Washer MAINTENANCE
SPECIFICATIONS
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 System reaches 125°-155°F
Shipping 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
1-800-743-4115 for 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.
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:
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.
• NEVER repair high pressure hose. Replace it.
• Replacement hose rating MUST exceed maximum pressure
rating of unit.
The high pressure stream of water that this
equipment produces can pierce skin and its
underlying tissues, leading to serious injury and
possible amputation.
WARNING
Nozzle Extension
Filter Screen
O-ring
Figure 12 — Clean In-Line Filter