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Section 5: Maintenance
2.
3.
4.
Detach spray gun and nozzle extension from Ngh
pressure hose. Detach nozzle extension
from spray gun
and remove oofing and screen from nozzle extension.
Flush the screen, spray gum and adiustable nozzle
extension with clean water to clear debris.
Place indine
filter
screen
into
threaded
end of nozzle
extension.
Direction
does not matter.
Push screen
in
with
eraser
end of penal[
until
it rests flat at bottom
of
opening.Take
care to not bend
screem
Place ooring
into
recess.
Push ooring
snugly against
in-line
filter
screen.
Assemble
nozzle
extension
to spray gun,
Purge
Pump
of Air
and
To remove
air from
the
pump,
follow
these
steps:
I.
Set up pressure washer as described in "Preparing
PressureWasher For Use'L Connect water supply and
turn
water
on_
Z
Pull trigger on spray gun and hdd.
3.
When water supply is steady and constant, engage
trigger lock.
To remove
contaminants
from
the
pump,
follow
these
steps;
[.
Set up pressure washer as described in "Preparing
Pressure_A/asherFor Use". Connect water supply and
turn water on.
2.
Remove nozzle extension from spray gun.
3.
Start engine according to instructions in "HowTo Use
PressureWasher".
4.
Squeeze trigger on spray gun and hold.
S.
When water supply is steady and constant, engage
trigger lock and refasten nozzle extension.
Nozzle
Maintenance
A pulsing sensation fek while squeezing the spray gun
trigger
may be caused
by
excessive pump
pressure.The
principal cause of excessive pump pressure is a orifice
clogged or restricted with foreign material such as dirt,
etc.To correct the problem, immediately clean the orifice
following these instructions:
I.
Shut off engine and turn off water supply.
2.
Remove
orifice
from
end of nozzle
extension.
Separate
nozzle extension from spray gun.Twist nozzle
clockwise to stream positiom Using a 2mm (5/64) allen
wrench, remove orifice from end of nozzle extension
(Figure 14).
++ -
+
_-++.
++ +++
-++ +: @++
+
Orifice
S
...........
3+
Remove indine filter from other end of nozzle
extension.
4.
Use a small paper clip to free any foreign material
clogging or restricting
orifice (Figure 14).
5.
Using a garden hose, remove additional debris by back
flushing water through nozzle extension
(Figure 15).
Back flush between 30 to 60 seconds.Turn
adiustable
nozzle extension
to stream spray and move nozzle
from low to high while flushing.
6+ Reinstall orifice and in=line filter into nozzle extension.
DO NOT overtighten orifice with allen wrench.
7.
Reconnect nozzle extension to spray gun.
8.
Reconnect water supply,turn on water, and start
engine.
9.
Test pressure washer by operating with nozzle in high
and low positions.
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