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6D-24
1977 PONTIAC SERVICE MANUAL
E N D FRAME
BEARING
SLINGER
'
ARMATURE
SHAFT
Fig. 6D-30 Drive End Frame Bearing Assembly
If the seal is separate from the bearing, it is
recommended that a new seal be installed whenever the
bearing is replaced. Press the seal in with the lip of the seal
toward the rotor when assembled, that is, away from the
bearing. Lightly coat the seal lip with oil to facilitate assembly
of the shaft into the bearing.
REASSEMBLY
Reassembly is the reverse of disassembly. Remember
when assembling the pulley to secure the rotor in a vise only
light enough to permit tightening the shaft nut to 50 lb. ft.
If excessive pressure is applied against the rotor, the assembly
may become distorted. To install the slip ring end frame
assembly to the rotor and drive end frame assembly, remove
the tape over the bearing and shaft, and make sure the shaft
is perfectly clean after removing the tape. Insert a pin through
the holes to hold up the brushes. Carefully install the shaft
into the slip ring end frame assembly to avoid damage to the
seal. After tightening the thru-bolts remove the brush
retaining pin to allow the brushes to fall down onto the slip
rings.
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