Service
Turbine Alternator Removal and
Replacement
NOTE: Replace turbine bearings after 2000 hours of operation. See your authorized Graco representative.
1.Prepare the gun for service as instructed on page 22.
2.Remove the power supply from the gun handle as instructed on page 27.
3.Squeeze the two ends of the retaining ring (35) together and carefully pull the alternator (37) away from the power supply (18) until the
4.Use an ohmmeter to test the turbine alternator coil. Measure the resistance between the two outer terminals of the
5.Measure the resistance between each outer terminal of the
6.Connect the
7.Install the power supply in the gun handle as described on page 27.
Barrel Installation
1.Be sure the gaskets (34 & 18a) and spring (30) are in place. See Fig. 13. Replace if damaged.
2.Place the barrel (3) over the power supply (18) and onto the gun handle (7). Make sure the fluid rod spring (30) is seated properly.
3.Tighten the three socket head cap screws (5) oppositely and evenly to 18
CAUTION
To avoid damaging the gun, do not
4.Assemble the fluid tube (12) back into the fluid fitting (16).
5.Test the gun resistance as instructed on page 20.
18a
18
34
5
3
7
| 30 |
| 14 |
12 | 16 |
|
Tighten to 18
0381
Fig. 19
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