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309291P 31
Turbine Alternator Removal and
Replacement
Replace turbine alternator bearings after 2000 hours of
operation. Order Part No. 223688 Bearing Kit.
1. Prepare gun for service, page 24.
2. Remove the power supply/alternator assembly,
page 30.
3. Disconnect the alternator from the power supply,
page 30.
4. Measure resistance between the two outer termi-
nals of the 3-wire connector (GG); it should be
2.5-3.5 ohms. If outside this range, replace the alter-
nator coil.
5. Follow the bearing replacement procedure in the
bearing kit manual 308034.
6. Install the alternator on the power supply, page 30.
7. Install the power supply/alternator assembly, page
30.