Operating instructions, Basic elements of a pressure washer, Basic elements of an engine – Delta DTH2450 User Manual
Page 7: Pressure washer terminology
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OPERATING INSTRUCTIONS
BASIC ELEMENTS OF A
PRESSURE WASHER
High Pressure Pump (located inside
the shroud): Increases the pressure of
the water supply.
Engine: Drives the high pressure
pump.
High Pressure Hose: Carries the
pressurized water from the pump to
the gun and spray wand.
Spray Gun: Connects with spray wand
to control water flow rate, direction,
and pressure.
Multi-Adjustable Spray Wand: Allows
the user to use high or low pressure
and adjusts from a pencil stream (0°)
to a wide angle fan spray (40°). See
How To Use Spray Wand instructions in
this section.
Chemical Hose: Feeds cleaning
agents into the pump to mix with the
water. See How To Apply
Chemicals/Cleaning Solvents
instructions in this section.
Compare the illustrations with your unit to familiarize yourself with the location of
various controls and adjustments. Save this manual for future reference.
Engine
High
Pressure
Hose
Spray
Gun
Multi-
Adjustable
Spray Wand
Chemical
Hose
High Pressure Pump
(located inside the
shroud)
BASIC ELEMENTS OF AN
ENGINE
Refer to the engine manual for location
and operation of engine controls.
Choke Control: Opens and closes
carburetor choke valve.
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
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.
CU: Cleaning Units. GPM multiplied by
PSI. GPM x PSI = CU.