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Check the Electrical Grounding
1. Have a qualified electrician check the electrical
grounding continuity of the gun and turbine air
hose (M). See Fig. 16.
2. Make sure the turbine air hose (M) [the red Graco
electrically conductive air hose] is connected and
the hose ground wire is connected to a true earth
ground.
3. The air and fluid supplies to the gun must be
turned off and the fluid hose must not have any
fluid in it when checking the continuity.
4. Measure the resistance between the turbine air
inlet fitting (N) and a true earth ground (P) with an
ohmmeter (Q). Resistance should not exceed 100
ohms.
5. If the resistance is greater than 100 ohms, check
the tightness of the ground connections, and be
sure the turbine air hose ground wire is connected
to a true earth ground. If the resistance is still too
high, replace the turbine air hose.
N
Q
Fig. 16
18
308496
Installation
Install the Fabric Cover
(Part No. 237603 and 236824 Guns Only)
1. Install a fabric cover (AA) over the front of the gun,
and slide it back to cover the exposed tubing and
hoses at the back of the manifold. See Fig. 17.
2. Route the exhaust tube (BB) outside the cover.
This enables you to monitor the exhaust tube for
the presence of any paint or solvent. See Check
for Fluid Leakage on page 25. Strap down the
exhaust tube to prevent it from moving around.
M
P
Fig. 17
04307B
AA
BB
BB
Manifold Back View
04309
04308
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Table of Contents
Troubleshooting
