Product Manual

16
Operation
Inspect Spray System
Always inspect spray system for damage and leaks
before each use. Do not start pressure washer until all
needed repairs have been completed.
Perform Scheduled Maintenance, As needed
Make sure that any other regular maintenance has been
performed as prescribed in this manual in the
"Maintenance Schedule Summary" section.
Refer to the motor maintenance instructions.
Connect Hoses, Water Supply, and Spray
Nozzle
Position Pressure Washer for Use
• For detailed instruction on positioning your pressure
washer for use, turn to the “Initial Set-Up” section of
this manual and reference “Step 3: Select Suitable
Location”.
• Where no flammable vapors, dusts, and gases are
present.
• Where there is adequate, unobstructed ventilation
airflow.
• With adequate clearance from combustible
materials.
• On a firm, level, heat-resistant surface with good
drainage and nearby access to a continuous water
supply.
Attach Garden Hose to Water Inlet
1. Make sure the water supply is clean. Debris can
cause excess pump wear and reduce performance.
2. An insufficient water supply will damage your pump.
Make sure the water supply is steady and is 20%
over the rated flow of your pump. Use a stopwatch
to time how long it takes to fill a 5-gallon bucket with
your garden hose. The bucket must fill faster than
the times listed in the table below.
Model#
Time to Fill 5 Gallon
Bucket
990990
160 sec
990991
100 sec
3. The water supply garden hose must have an inside
diameter of at least 5/8”. If the hose is more than
100 ft. long, the diameter must be at least 3/4”.
4. Never use a reservoir tank as a water source.
Drawing water out of a tank may cause pump
cavitation and damage to your pump. This
pressure washer is designed for a pressurized
water source such as a city water faucet. However,
the water source pressure must not exceed:
Model#
Max. Inlet psi
990990
60 psi
990991
60 psi
5. Always use a flexible rubber hose for your water
supply. Do not use rigid piping.
Attach High Pressure Hose to Spray Gun
and Water Outlet
WARNING
High Pressure
NEVER operate this pump with components (such as
hose, connections, and spray gun) rated for lower
pressure and/or temperature limits than the pressure
washer's maximum rated pressure and temperature,
or component could rupture and cause serious
personal injury from escaping high pressure fluids.
1. See "Component Identification" section of this
manual for location of the pressure washer's water
outlet.
2. Your pressure washer hose is equipped with quick
couplers. Simply pull the collar back and push the
coupler onto the water outlet nipple. The collar
should slide over the ball bearings
WARNING
High Pressure Fluid Injection Hazard
High-pressure fluid discharge from leaks (even pin-
sized) or ruptured components can pierce skin and
inject fluid into the body. Injection injury can result in
blood poisoning and/or severe tissue damage leading
to infection, gangrene, and possibly amputation.
• Never use a finger or skin to check for leaks.
• Never operate pressure washer with damaged or
missing hoses/parts.
• Never attempt to repair a high-pressure hose or
component – Always replace it with a part that is
rated at or above the pressure rating of this
pressure washer.
Collar
Coupler
High Pressure Output