29
PRESSURE CONTROL ADJUSTMENT
Maximum Working Pressure Adjustment
13. Turn the sprayer OFF . Disengage the gun safety
latch. Trigger the gun into a grounded waste container
until pressure is relieved. Engage the gun safety
latch.
14. Use the 3/8 in. nut driver to turn the pressure adjust-
ment nut (D) counterclockwise one full turn.
15. With the pressure control knob at the
minimum set-
ting, turn the sprayer ON.
16.
Slowly
turn the pressure control knob (A) clockwise
to the maximum setting and hold it there. Use a 3/8 in.
nut driver or socket wrench to slowly turn the pressure
adjustment nut (D) clockwise until the gauge reads
EXACTLY 3000 psi (210 bar).
17. Turn the pressure control knob to the minimum set-
ting. Release the gun safety latch and trigger the gun
into a grounded waste container until pressure is re-
lieved. Engage the gun safety latch. Slowly increase
the pressure to verify that the maximum working pres-
sure is set at 3000 psi (210 bar).
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 22. Leave the mineral
spirits in the pump to protect it until you are ready to
spray again.
CAUTION
18. Install the plug (7) in the bottom of the pressure con-
trol. Remove the gauge assembly and reinstall the
plug. Flush out the water with mineral spirits.
Fig 29–1
C
B
A
79
D
INSERT WRENCH HERE
TO ADJUST NUT (D)
7
