Pressure Control Adjustment
NOTE: For Steps
5
through
18,
refer to Fig.
22.
6.
Plug in the sprayer.
7.
Turn the pressure control knob (B) to the mini-
mum setting (fully counterclockwise), and turn the
sprayer
ON.
THE DISPLACEMENT PUMP
SHOULD
NOT
CYCLE
the bottom of the pressure control. Insert a
If
/t
does cycle, remove the plug
(74)
from
unscrew the pressure adjustment nut'O just
318
in. nut driver through the opening, and
until the sprayer stops running.
Adjust the Overpressurization Switch
8.
With the spray gun triggered, s/ow/y turn the
pressure control knob clockwise just until the
sprayer starts. Prime the pump and hose.
9.
Slowly turn the pressure control knob to the maxi-
mum setting. While watching the red light on the
circuit board and the pressure gauge, turn the nut
goes out and the gauge reads belween
238
-
0
s/ow/y
to increase pressure until the red light
266
bar.
If the red light does not go
out
by
266
bar,
til
the light goes out.
loosen the nut (P) and adjust the stud
(Q)
un-
If the red light goes
out
before
238
bar,
til the light goes out between
238
-
266
bar.
loosen the nut (P) and adjust the stud
(a)
un-
10.
Tighten the nut (P) if
it
was loosened in Step
9.
11.
Trigger the gun to relieve pressure. Release the
trigger and engage the safety latch. Repeat Step
9
to verify your results.
12:
Install the pressure control cover.
Maximum Working Pressure Adjustment
13.
Turn the sprayer
OFF.
Disengage the gun safety
latch. Trigger the gun into a grounded waste con-
tainer until pressure
is
relieved. Engage the gun
safety latch.
34.
Use the
318
in. nut driver to turn the pressure ad-
justment nut
0
counterclockwise one full turn.
15.
With
the pressure control knob at the minimum
setting, turn the sprayer
ON.
16.
S/ow/y turn the pressure control knob (B) clock-
wise to the maximum setting and hold
it
there.
turn the pressure adjustment nut clockwise
Use a
318
in. nut driver or socket wrench to slowly
until the gauge reads EXACTLY
195
bar.
17.
Turn the pressure control knob to the minimum
setting. Release the gun safety latch and trigger
the gun'into a grounded waste container until
pressure
is
relieved. Engage the gun safety latch.
Slowly increase the pressure to verify that the
maximum working pressure
Is
set at
195
bar.
.CAUTION
To
prevent pump corrosion, flush the water out of
the pump, hose and gun with mineral spirits. Be
sure to close the drain valve, first. Use the lowest
pressure necessary to flush. Follow the Pressure
Relief Procedure Warning on page
2.
Leave the
mineral spirits in the pump to protect
it
until you
are ready to spray again.
18.
Install the plug
(74)
in the bottom of the pressure
the plug. Flush out the water with mineral spirits.
control. Remove the gauge assembly and reinstall
A
Insert wrench
to
adus1
nul
0
74
-=
Fig.
22
307-889 27
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