Repair
Repair Motor Brushes
Brush Removal
Note
Replace brushes worn to less than 0.7 in. (17
mm). Brushes wear differentlyon each side
of motor; check both sides. Brush Repair
kit 234037 (includes brushes and springs)
is available.
1. Press
to stop the pumps.
2. Turn off heat zones.
3. Perform
Pressure Relief Procedure, page 46
.
4. Press
to park the Component A Pump.
5. Press
to deactivate the system.
6. Turn main power switch off.
To prevent electric shock do not remove any
shrouds or open the electrical enclosure door.
240 V is still present in the system until the
engine has stopped.
7. Allow engine dwell time.
NOTICE
Allow engine dwell time, per manufacturer
recommendations, prior to shutdown. Dwell
time will help engine cool down after running at
operating temperature for anyperiod of time.
8. Press
on the engine controller.
To prevent electric shock and burns, wait for 5
minutes for stored voltage to discharge.
9. Remove motor cover, screws. Remove brush
inspection covers, and screws from top and
bottom of motor.
10. Remove two screws (299) and front plate (289).
See
Fig. 20, page 65
.
11. Remove two screws (299) from back plate (290).
Rest fan and back plate (290) behind motor. See
Fig. 20, page 65
.
12. Push in spring clip (C) to release hooks (H) from
brush holder. Pull out clip and spring (S). Note
spring orientation.
S
C
H
Note
The top brush has a pair of thin wires
for brush wear signal. Unplug at spade
connector provided.
13. Use a screw driver or 5/16 nut driver to loosen
terminal screw (R). Pull awaybrush lead (L),
being careful motor lead terminal (T) remains in
place. Remove and discard brush (B).
B
T
R
L
14. Inspect commutator for excessive pitting,
burning, or gouging. Black color on commutator
is normal. Have commutator resurfaced by
qualified motor repair shop if brushes wear too
quickly.
15. Repeat steps 12 and 13 for the other side.
3A1706K
59
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Содержание Reactor E-30i
Страница 91: ...Notes Notes 3A1706K 91 All manuals and user guides at all guides com a l l g u i d e s c o m ...
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Страница 118: ...Parts Air Control Panel 118 3A1706K All manuals and user guides at all guides com ...
Страница 153: ...Dimensions Pallet Mounting Dimensions Figure 57 3A1706K 153 All manuals and user guides at all guides com ...