HP GRACO OR PRO TI1681A - Manual (Page 48)

Repair
48 309293J
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 41.
2. Remove the power supply/alternator assembly,
page 47.
3. Disconnect the alternator from the power supply,
page 47.
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 47.
7. Install the power supply/alternator assembly, page
47.