Setup
12
3A6588B
Setup
Connect Water Supply
Select a water supply hose which is a quality grade of
garden hose measuring at least 3/4 in. (19.05 mm) in ID
and no longer than 50 feet (15.24 m).
Check the water inlet strainer to make sure it is clean
and free of any obstructions. Periodic cleaning of the
water strainer will help prevent pump problems.
Connect the hoses
1. Connect one end of water supply hose to water inlet
of unit.
2. Connect other end of hose to pressurized water
supply. When connecting water inlet to water
supply, local regulations of your water company
must be observed. In some areas, the unit must not
be connected directly to public drinking water
supply. This prevents feedback of the detergents
into the water supply. Direct connection is permitted
if a back flow preventer is installed.
3. Connect high pressure washer hose to water outlet
of unit.
4. Connect other end of pressure washer hose to gun
assembly.
Follow incoming water requirements listed below:
1. Water pressure must be a minimum of 25 psi (0.17
MPa,1.72 bar) and a maximum of 125 psi (0.86
MPa, 8.6 bar).
NOTE:
A typical outdoor faucet will
generally supply this psi if fully turned on.
2. Incoming GPM must be at least one gallon more
than the outgoing GPM stated on pressure washer
nameplate.
NOTE:
You can check GPM by timing
how long it takes to fill a 5 gallon container.
3. Incoming water temperature must not exceed 140°
F (60° C).
Priming the Pump
It is essential to prime the pump on initial start-up and
each time the water supply is disconnected from the unit
after initial use.
1. Lay high pressure hose out straight to eliminate the
possibility for kinks to restrict flow.
NOTE:
The nozzle assembly should not be
connected to the gun assembly at this time.
2. Engage trigger lock and point gun away from
yourself or anyone else. Make sure water supply is
fully turned on.
3. Disengage trigger lock and squeeze trigger.
NOTE:
Low pressure water will begin flowing from
hose/gun assembly. This allows unit to prime and
purge any air from system. Unit is primed when
water flow is uninterrupted by air.
4. Once unit is primed, release trigger and engage
trigger lock. Securely connect nozzle assembly. See
Nozzle Connection
, page 13.
NOTICE
As a strainer becomes obstructed, it restricts proper
flow of water to the pump. This can result in cavitation
which will cause premature failure of pump packings.
NOTICE
Excessive pump damage may result if the water tem-
perature exceeds acceptable levels.
Never allow the unit to operate without the incoming
water line attached and the water supply fully turned
on. Damage to the equipment could occur.
NOTICE
Make sure the nozzle is not connected to the unit
while priming the pump. Priming allows mineral
deposits to be released from the system which could
obstruct or damage the nozzle assembly resulting in
costly repairs.
