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AR620 / AR630 / AR630-H
OT
U
NLOADER
7
S
TARTING
THE
M
ACHINE
A
FTER
A
P
ERIOD
OF
N
ON
-U
SE
M
AINTENANCE
R
OUTINE
C
HECKS
- D
O
THESE
BEFORE
EVERY
USE
5. Spray the backside of the nozzle with a lubricant and work the nozzle
back and forth from high pressure to low pressure. This will help keep
the nozzle from sticking.
6. Follow this procedure each time the machine is stopped. Having the
nozzle set at low pressure and squeezing the trigger on the gun when
you start the unit will reduce the startup load of the unit.
Long periods of non-use can cause calcium and iron deposits inside the
pump. Starting the machine could cause damage to the pump. Insert the
allen key provided with the unit through the hole in the motor end hous-
ing and rotate the motor one revolution clockwise and counter-clockwise.
Remove the key and start the motor. It should start up easily.
Change oil after the rst 50 hours of use. Use a SAE20 or 30 non-deter-
gent oil. After that, change oil every 200 hours, once a year or when it
looks milky, more frequently if used in demanding environments. Chang-
ing oil is one of the most important and lease expensive maintenance
items, it will prolong the life of your pressure washer.
1. Check water inlet screens for signs of debris.
2. Check nozzle for debris and signs of extensive wear. Worn nozzle will
result in poor performance. Only check nozzle with the motor turned
“OFF” and the pressure relieved from the system!
3. Check all ttings and connections for leaks and worn areas.
O
PERATING
I
NSTRUCTIONS
(
CONT
)
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