Graco System 3800, Руководство пользователя, Страница: 14 / 22

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Repair
WARNING
Turn off turbine and unplug power for the following
procedures.
System HVLP Turbine Sprayer
Disassembly
1. If necessary, clean and replace filter according to
maintenance procedure on page 11.
2. Place turbine upside down on work surface.
Remove four cap screws (27) and bumpers (7).
See Fig. 9.
3. Carefully lift unit by turbine baseplate (2) from
turbine cover (1), and place upright on work
surface.
4. Repair or replace items as required.
5. Reassemble turbine.
7949A
Fig. 9
27
7
1
2
A
Power Cord Replacement
Replace power cord by unplugging from IEC connector
(A). Install new cord. See Fig. 9
Motor Brush Replacement
NOTE: It is recommended that this procedure be
performed by an authorized service center.
1. Use System HVLP Turbine Sprayer
Disassembly procedure on page 14 to take
turbine apart. Use Turbine/Motor Replacement
on page 15 to replace turbine.
2. Remove plastic fan cover.
3. Remove brushes. Check commutator for
excessive wear.
Note: Do not install new brushes in a turbine that has
had brush holders damage the commutator. A motor
with this type of commutator damage is unrepairable.
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.