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9- ENG
D25802
BASIC ELEMENTS OF ENGINE
Refer to the engine manual for location and operation of engine controls.
Choke Control: Opens and closes carburetor choke valve
Throttle Control Lever: Controls engine speed.
Starter Grip: Pulling starter grip operates recoil starter to crank engine.
Fuel Valve Lever: Opens / closes connection between fuel tank and carburetor.
Engine Switch: Enables and disables ignition system pressure washer operating
features
PRESSURE WASHER TERMINOLOGY
PSI: Pounds per Square Inch. The unit of measure for water pressure. Also used
for air pressure, hydraulic pressure, etc.
GPM: Gallons Per Minute. The unit of measure for the flow rate of water through
the pressure washer.
CU: Cleaning Units. GPM multiplied by PSI.
Bypass Mode: In Bypass Mode, the pump is recirculating water because the
trigger of the spray gun is not pulled. If unit is left in bypass mode for more than
two (2) minutes, the water temperature can rise to a dangerous level and may
damage internal components of the pump. Any damage to pump due to these
causes will not be covered under warranty.
DO NOT allow your unit to operate in bypass mode for more
than two minutes at any time. Overheating of pump can
cause damage to pump.
Thermal Relief Valve: In an effort to prevent extreme damage, pumps are
equipped with a thermal relief valve. This valve will open when the temperature
inside the pump rises too high. This valve will then release a gush of water in an
effort to lower the temperature inside the pump. Immediately after this occurs,
the valve will close. The thermal relief valve is part of the pump and is not visible
to the user.
Chemical Injection: Feeds cleaning agents into the pump to mix with the
pressurized water and help in cleaning.
Water Supply: All pressure washers must have a source of water. The minimum
requirements for a water supply are 20 PSI and 5 gallons per minute.
PRESSURE WASHER OPERATING FEATURES
PRESSURE ADJUSTMENTS
The pressure setting is preset at the factory to achieve optimum pressure and
cleaning. If you need to lower the pressure, it can be accomplished by these
methods.
1. Back away from the surface to be cleaned. The further away you are, the
less the pressure will be on the surface to be cleaned.
DO NOT attempt to increase pump pressure. A higher pressure
setting than the factory set pressure may damage pump.
2. Change to a wider spray pattern nozzle. See How to Use Wand
paragraph in this section.