308442 35
Service
Power Supply Removal and Replacement
NOTES:
To avoid a loss in electrostatic performance, inspect
the gun body power supply cavity for dirt or mois-
ture. Clean the cavity with a clean, dry rag.
Do not expose the seal (D) or gasket (27a) to
solvents as this will damage them.
1.
Prepare the gun for service as instructed on
page 28.
2.
Remove the barrel as instructed on page 34.
3.
Grasp the power supply (27) with your hand. With
a gentle side-to-side motion, being careful not to
damage the power supply, pull the power supply
free from the gun body (29), then pull it straight
out. See Fig. 31.
4.
Inspect the power supply for any physical damage.
Check the electrical resistance as instructed in
Test Power Supply Resistance, page 27. If
necessary, replace the power supply.
5.
Before installing the power supply, inspect the seal
(D) for any damage or swelling. Make sure the
gaskets and pads (27a–27f) are in place.
6.
Lubricate the o-ring (25a) and insert the power
supply in the gun body.
7.
Assemble the gun as instructed in Barrel
Installation, page 36.
Power Supply Adjustment
The kV switch, in the manifold, enables you to switch
between full voltage and a lower voltage output. The
lower voltage is factory set at 60 kV, but can be
adjusted between 45 and 80 kV.
To adjust the low voltage setting, use a small blade
end screw driver to turn the potentiometer (W). Turn it
clockwise to decrease the voltage or counterclockwise
to increase the voltage; fully clockwise is 45 kV, fully
counterclockwise is 80 kV.
Apply a very light coat of lubricant to the o-ring (25a).
Do not expose the seal (D) or gasket (27a) to solvents.
Fig. 31
29
30
25a
25b
27a
27
25
V
26
27b
27c
27f
D
W
03903B
