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Repair
Motor Brush Replacement
NOTE: It is recommended that this procedure be
performed by an authorized service center.
1. Use Turbine Sprayer Disassembly procedure at
left to take turbine apart. Use Turbine/Motor
Replacement on page 16 to replace turbine.
2. Remove plastic fan cover.
3. Remove brushes. Check commutator for exces-
sive wear.
Note: Do not install new brushes in a turbine in which
the commutator has been damaged by the brush
holders. A motor with this type of damage cannot be
repaired.
4. Install new motor brushes using reverse order.
Keep lead wires from all rotating parts and motor
frame.
CAUTION
Do not run the motor with the air inlet or outlet
sealed off.
5. Reassemble turbine.
6. Run motor 30 to 45 minutes at half-rated voltage
to seat motor brushes.
Note: If half-rated voltage is not available, run repaired
unit in series with another turbine for 30 to 45 minutes.
Turbine/Motor Replacement
The HVLP 3800 ProCompt and HVLP 4900 Pro-
ComptTurbines each use a different turbine/motor.
See the Turbine/Motor Replacement Kits in the Parts
List on page 19 for a listing of replacement kit parts.
See Parts Drawing on page 18.
1. Use Turbine Sprayer Disassembly procedure on
page 14 to take turbine apart.
2. Remove turbine gasket (25).
3. Remove 3 screws (6).
4. Remove plate (82) and 3 spacers (83).
5. Remove turbine motor wires from spade connec-
tors.
6. Rotate turbine (24) from outlet fitting (18) and lift
up from turbine spacers (23).
7. Install new turbine gaskets (25 and 41).
8. Reassemble turbine.
9. Connect ground wire to turbine housing as re-
quired.
10. Reconnect wires according to applicable turbine.
See Fig. 10 or Fig. 11 schematics.
Fig. 10
HVLP 3800 ProCompt
Fig. 11
HVLP 4900 ProCompt
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