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Repair
38 313289S
Alternator Power Supply Control
Components
Alternator Module Repair
Alternator Repair Kit 257147 is available to replace tur-
bine bearings.
1. Remove shroud. See Remove Shroud.
2. Disconnect main power.
3. Remove four nuts (4); leave two nuts on left side of
panel tight. Open front panel of control box (11).
4. Disconnect output power cable connections from
alternator module and ground lead from control box.
5. Disconnect power supply cables from FCM, USB,
and display.
6. Disconnect air regulator air line and exhaust air line.
7. Remove four screws (263) from mounting to remove
alternator from control box.
8. Remove seven screws (708) to separate alternator
housings.
9. Replace turbine (704) if necessary. Lightly lubricate
turbine o-ring to ease alternator housing reassem-
bly.
10. Replace gasket (702) and/or circuit board assembly
(705) if damaged.
11. Follow steps in reverse order to reassemble alterna-
tor regulator assembly and to reconnect power
cables and air lines. Refer to Electrical Schemat-
ics, page 47.
NOTE:
Avoid causing a kink in the flexible circuit board when
you reconnect the circuit board assembly (705).
12. Start machine. Check control voltage on Alarm
information screen. Voltage should be between
10-14 Vdc.
FCM
USB
Display
Exhaust
Air Reg.
r_312359_313289_23
r_256991_313293_7
263
260
r_xm1a00_312359_313289_9_4a-1
702
704
705
708
708
703