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Hydraulic Pressure Control
Knob
Use to adjust hydraulic pressure available to the hydrau-
lic drive system. Turn knob (HC) clockwise to increase
pressure and counterclockwise to decrease pressure.
Use hydraulic pressure gauge (HP, page 11) to view
hydraulic pressure.
+
Component A and B outlet pressures will be higher
than the hydraulic set pressure, depending on the
model (see Pressure Ratio data on page 3). Com-
ponent A and B pressure may be viewed on the
pressure gauges (GA, GB), or the higher of the two
pressures may be displayed on the motor control
panel (MC). See F
IG
Motor Control Arrow Keys
Use
or
to:
•
Adjust pressure imbalance settings, page 25.
•
Adjust standby settings, page 28.
311299C
ti7731a
ti7732a
. 3, page 11.
Spray Adjustments
Flow rate, atomization, and amount of overspray are
affected by four variables.
•
Fluid pressure setting. Too little pressure results in
an uneven pattern, coarse droplet size, low flow,
and poor mixing. Too much pressure results in
excessive overspray, high flow rates, difficult control,
and excessive wear.
•
Fluid temperature. Similar effects to fluid pressure
-
setting. The A and B temperatures can be offset to
help balance the fluid pressure.
•
Mix chamber size. Choice of mix chamber is based
on desired flow rate and fluid viscosity.
•
Cleanoff air adjustment. Too little cleanoff air
results in droplets building up on the front of the
nozzle, and no pattern containment to control over-
spray. Too much cleanoff air results in air-assisted
atomization and excessive overspray.
Spray Adjustments
15
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