Graco 3340 Pressure Washer User Manual


 
Setup
309286K 5
Setup
Shipping Damage
Check pressure washer for shipping damage. Notify the
carrier immediately if there is any damage.
Connecting High-Pressure Hose and Gun
Connect high-pressure hose between pump outlet and
gun inlet. Both of these connections are made with quick
couplers.
Installing Spray Tip
Install spray tip on wand. (Installing and Changing Spray
Tips, page.) If you are using a Sandblasting Kit, see its
separate manual for installation instructions.
Connect to Water Supply
Connect hose from water supply to the garden hose
inlet on the pressure washer.
Up to 100 ft (30 m) of 3/8 in. high-pressure hose
may be used. Longer hoses could affect pressure
washer and chemical injector performance
balance.
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The supply hose should not be longer than 50
ft (15 m) in length.
Inside diameter of hose should measure at
least a 3/4 in. (19 mm).
CAUTION
Before you connect garden hose to pressure
washer, check your local plumbing code regarding
cross-connection to the water supply. If required,
install a backflow preventer.
If the inlet water pressure is over 60 psi (4.1 bar, 41
MPa), a regulating water valve must be installed at
the garden hose connection.
Do not exceed 160° F (70° C) inlet water tempera-
ture.
The water source must have a minimum flow rate
equal to that of the pressure washer.
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