Pressure Washer Terminology; Pressure Washer Operating Features - Cub Cadet CC3224 Operator's Manual

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 equals CU.
Bypass Mode
Allows water to re-circulate within the pump when the gun
trigger is not pulled. This feature allows the operator to release
the trigger gun and reposition themselves without having to turn
the engine off in between cleaning actions.
NOTICE:
Allowing the unit to run for more than two minutes
without the gun trigger being pulled could cause overheating
and damage to the pump. Do not let the pressure washer run for
more than two minutes in Bypass Mode. Turn off the engine and
relieve the pressure in the gun during these extended situations.
Thermal Relief Valve
When the temperature inside the pump rises too high, this valve
will open and release a gush of water in an effort to lower the
temperature inside the pump. The valve will then close.
12 S 4— c
ection ontrolS and
Figure 4-2
F
eatureS
Detergent 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. If your water source is a well, the garden hose length can
only be 30 ft. (9 m) max.
WARNING:
To reduce the possibility of
contamination always protect against backflow
when connected to a potable water system.

Pressure Washer Operating Features

Pressure Adjustments
The pressure setting is preset at the factory to achieve op ti mum
pres sure and cleaning. If you need to lower the pres sure, it can
be accomplished by these meth ods.
Back away from the sur face to be cleaned. The further
•
away you are, the less the pressure will be on the surface to
be cleaned.
• CC3224- Change to the 40˚ nozzle (white). This nozzle
delivers a less powerful stream of water and a wider spray
pattern. Refer to "How To Use Spray Wand".
• CC3425, CC4033 – Use the Dial-N-Wash to increase
and decrease the pressure. Refer to the "Dial-N-Wash
Adjustment" paragraph.
NOTICE:
DO NOT attempt to increase pump pressure. A higher
pressure setting than the factory set pressure may damage
pump.
Dial-N-Wash Adjustment (CC3425, CC4033)
1. Choose the correct high pressure nozzle (0˚, 15˚, 25˚ or 40˚)
for the job to be performed. Refer to "How To Use Spray
Wand".
2. The Dial-N-Wash is shipped in the MAX pressure setting,
the MAX pressure bar is aligned with the arrow on the
collar as shown.
3. Rotating the Dial-N-Wash counterclockwise until it stops
places it in the MIN pressure setting, the arrow will align
with the MIN pressure bar as shown.
4. Adjust the pressure by rotating the Dial-N-Wash clockwise
for higher pressure or counterclockwise for lower pressure,
aligning the arrow with the desired pressure bar on the
Dial-N-Wash.
NOTE: To apply chemicals the black low pressure nozzle must
be installed and the Dial-N-Wash must be in the MAX pressure
setting.