Turbine Alternator Removal And Replacement - Graco PRO 5500wb Instructions-Parts List Manual

Turbine Alternator Removal and
Replacement
NOTE: Replace turbine bearings after 2,000 hours of
operation. See your authorized Graco representative.
1. Prepare the gun for service as instructed on
page 35.
2. Remove the barrel as instructed on page 41.
3. Remove the power supply as instructed on
page 42.
4. Squeeze the two ends of the retaining ring (30)
together, and carefully pull the alternator (25) away
from the power supply (27) until the wire connector
(V) disengages. See Fig. 38, page 42.
Service
5. Use an ohmmeter to test the turbine alternator coil.
Measure the resistance between the two outer
terminals of the 3-wire connector (V). Resistance
should be 3 to 5 ohms. If the reading varies from
this value, replace the alternator.
6. Measure the resistance between each outer
terminal of the 3-wire connector (V) and the alter-
nator (25) housing. The resistance should be
infinite. If the resistance is not infinite, replace the
alternator.
7. Connect the 3-wire connector to the 3 prongs in
the power supply. Push the alternator (25) onto the
power supply (27) until the retaining ring (30)
engages with the alternator.
8. Install the power supply in the gun body as
instructed on page 42.
9. Install the barrel on the gun body as instructed on
page 44.
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