Pressure washer operating features, Pressure washer terminology (cont'd), Pressure adjustments – Delta DTT2450 User Manual
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PRESSURE WASHER
TERMINOLOGY (cont'd)
Bypass Mode: Allows water to
re-circulate within pump when the gun
trigger is not pulled.
Allowing the unit to
run for more than
two minutes without the gun trigger
pulled could cause overheating and
damage to the pump.
Chemical Injection System: Mixes
cleaners or cleaning solvents with the
water to improve cleaning
effectiveness.
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.
2.
Rotate the nozzle at the end of
the multi-adjustable spray wand
to widen the fan spray. The wider
fan spray will minimize the pressure
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.
3.
Reduce the speed of the
gasoline engine (RPM). Slow the
engine down and the water
pressure will go down with it.
READ AND UNDERSTAND ALL WARNINGS BEFORE STARTING UNIT
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 can 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 fittings or worn or damaged hoses can result in injection injuries. DO NOT TREAT
FLUID INJECTION AS A SIMPLE CUT! See a physician immediately!
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" 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 con-
tains 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.
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 minutes at a time. Pump operates in
bypass mode when spray gun trigger is not pressed. If pump is left in bypass mode for
more than two minutes internal components of the pump can be damaged.
If you do not understand these precautions, please call 1-866-422-4286 to speak to a
service representative for further instructions.