Pressure
Control Adjustment
WARNING
Use
extreme caution when performing this calibra
-
tion procedure
to reduce
the risk of a fluid injection in
-
jury or other serious bodily injury
, which
can result from
component rupture, electric shock, fire, explosion or
moving
parts.
This procedure sets the sprayer to 18.0–20.7 MPa,
182–207
bar Maximum W
orking Pressure.
Perform
this procedure whenever the pressure control
assembly
is removed and reinstalled, or replaced, to be
sure
the sprayer is properly calibrated.
Improper calibration can cause the sprayer to over–
pressurize
and result in component rupture, fire or
ex
-
plosion.
It may also prevent the sprayer from
obtaining
the maximum working pressure, resulting in poor
sprayer
performance.
NEVER
attempt
to increase the fluid outlet pressure by
performing these calibrations in any other way. Never
Exceed
20.7 MPa, (207 bar)
Maximum W
orking Pres
-
sure. Normal operation of the sprayer at higher pres-
sures could result in component rupture, fire or explo-
sion.
ALWAYS
use a
new
50 foot (15.2 m) spray hose, rated
for at least 20.7 MPa, (207 bar) Maximum Working
Pressure,
when performing this procedure. A used, un
-
der–rated hose could develop a high pressure leak or
rupture.
Service Tools Needed:
NEW
15.2 m, 21.0 MPa, 210 bar
, flexible nylon, airless spray hose, p/n 223–541
0–350 bar fluid–filled pressure gauge, p/n 102–814
NEW
spray tip, size 0.025 to 0.029
3/8 in. ignition wrench or nut driver
5 gallon pail and water or mineral spirits
Swivel, p/n 156–823
Nipple, p/n 162–453
T
ee, p/n 104–984
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