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Copyright 2017 Cummins Inc.
23. Connect the grounding strap to the flywheel
housing using a capscrew and EIT locking
washer; and tighten securely.
24. Install the mounting feet bracket fasteners; and
tighten securely.
25. Lift slightly on end of rotor shaft and install
wooden shims to hold rotor on center with sta-
tor.
26. If removed, install end bearing. Refer to Bear-
ing Inspection/Removal/Replacement proce-
dure in this section.
27. Install two threaded studs into end bearing car-
tridge to aid subsequent procedures. Position
the end bearing cartridge assembly close to
proper position for hole alignment with end-
bracket.
28. Assemble exciter stator, if removed, to inside of
endbracket. Tighten fasteners to 4.5 ft-lb (6
Nm) torque.
29. Install endbracket to the stator frame using the
proper capscrews and lock washers, but do not
tighten securely as yet.
30. Insert and start the threads of the bearing car-
tridge fasteners, and remove threaded align-
ment studs, through the endbracket into the
cartridge housing.
31. Lift slightly on endbracket and remove wooden
shims holding rotor on center with stator.
32. Securely tighten the endbracket fasteners.
33. Tighten the bearing cartridge fasteners to 4.5
ft-lb (6 Nm) torque.
34. Install the PMG assembly, if removed. Refer to
Permanent Magnet (PMG) Installation.
Perform the “Aligning Alternator with Engine”
procedures later in this section, and then return
to step 35.
35. HC6 Control Housing: Remove alternator lift-
ing eyes. Reassemble control housing mount-
ing brackets to sides of alternator and fasten
securely.
WARNING
To prevent personal injury, use
adequate lifting devices to support heavy
components. Keep hands and feet clear
while lifting.
36. Use an adequate lifting device to lift the control
housing in position for mounting to the stator
frame. Replace the capscrews and lock wash-
ers and tighten to 20 ft-lb (27 Nm) torque.
37. Connect all control wires and alternator leads
using the proper generator set AC and DC wir-
ing diagram/schematic.
38. Reassemble any engine air intake compo-
nents removed during alternator disassembly.
39. Reassemble the covers over the alternator air
discharge openings and fasten securely.
40. Refer to Permanent Magnet (PMG) Installation
procedure in this section.
41. If equipped with the circuit breaker option, re-
connect load wires to circuit breaker. Recon-
nect all lead wires to the terminal block assem-
bly using proper reconnection diagram in Sec-
tion 9.
42. Verify that all connections are proper and se-
cure and then install the air inlet panel and ac-
cess covers to control housing.
43. Connect the negative (-) battery cable and test
the generator set for operation.
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