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Models CP5211, CP5216 and CP5321
www.chpower.com
Assembly and Preoperation
(Continued)
TRIGGER SAFETY LATCH
In the engaged position, the trigger
safety latch prevents the gun from being
triggered accidentally. Push the latch fully
up to engage it (See Figure 16 and 17).
Always engage the trigger safety latch
when the unit is not in use.
Figure 17 - Trigger unlockedFigure 16 - Trigger locked
Operation
SURFACE PREPARATION
The following cleaning procedure will help you organize your cleaning task and
ensures that you will achieve the best results in the shortest amount of time.
Remember to use the spraying / cleaning techniques mentioned in the following
section.
Before starting a pressure washer cleaning job, prepare the surface you intend to clean.
Clear furniture from the area and make sure that all windows and doors are closed
tightly. Also, protect all plants and trees near the cleaning area with a drop cloth. A
covering ensures that your plants won’t be sprayed by the detergents.
START UP
ALWAYS use this start up procedure to ensure that the unit is started safely and
properly.
If water has frozen in the pressure washer, thaw the pressure washer in a
warm room before starting. DO NOT pour hot water on or into the pump;
internal parts will be damaged.
1. Ensure that the power switch is in the “OFF” position.
2. Attach a garden hose to the inlet side of the pump and connect it to the water
supply. Use a hose with an internal diameter (I.D.) of 5/8 in. (1.58 cm) and a length
of 50 ft. (15 m) or less.
Some local plumbing codes require backflow prevention when
connecting to a fresh water supply. Install a backflow preventer upstream
from the pump if necessary.
a. If inlet water pressure is over 100 psi, install a regulating water valve at the
garden hose connection.
b. Do not exceed 100˚ F (38˚ C) inlet water temperature.
NOTE: The inlet water supply must have a minimum flow rate of 5 gpm (19 lpm).
3. Turn the water supply ON.
Never run the unit dry. Be sure the water supply is completely turned on
before operating the unit.
4. Trigger the gun until water sprays from the tip indicating that all air is purged from
the system. Set the trigger safety latch.
5. Plug the power cord into a grounded 120V outlet, that is on a dedicated circuit.
Press the reset button on the GFCI plug adapter. This must be done each time the
unit is plugged into an outlet.