Caution: This document contains mixed page sizes ... - Igor Chudov

14. If bearing, shaft, or oil seal replacement is required,
hold gear case upright and tap drive pinion
and shaft through gear case, Figure 67.
15.
(Not Illustrated)-With vise grips, remove rotor
through-stud from drive pinion shaft.
FIGURE 67. REMOVING DRIVE PINION SHAFT
FROM GEAR CASE
ALTERNATOR ASSEMBLY
16. Remove snap ring from bearing on drive pinion
shaft, Figure 68.
17. Press bearing from drive pinion shaft if bearing
replacement is required,
FIGURE 68. DRIVE PINION SHAFT BEARING i
SNAP RING REMOVAL
Use care to prevent damage to the fan
Assemble alternator components in reverse order
blades. Broken fan blades will throw the
from disassembly using additional instructions that fan out of balance and reduce the air flow rate.
follow:
1. Clean and inspect all mating surfaces.
2. Coat mating area between alternator bearing and
end bell bearing hole with a thin film of Molykote
or equal.
3. Install rotor-through-stud in drive pinion shaft, if
it was removed.
4. Install rotor and fan assembly on adapter. Guide
key ‘lot in fan Onto key in drive pinion shaft. A
raised line on the fan body casting indicates the
location of key slot inside. The drive shaft and key
can be seen through the air outlet in the adapter.
5. If they were removed, install exciter rotor and
shaft bearing. Hold fan with wooden stick and
torque shaft nut against exciter rotor 130to 15Oft.
Ibs. (176 to 203 Nom).
54
6. Install two stator throughstuds in adapter for
aligning stator assembly over rotor during
assembly.
7. Install baffle ring.
8. Install remaining two stator throughstuds in
adapter.
9. Install stator and end. bell. Torque nuts on
through-studs to 19 to 21 ft-lbs (26 to 28 Nom).
10. Torque down rotor-through-stud nut to 55-60 ft.
Ib. (75-81 Nom).
lnsta’l mounting feet and control boxl2
Connect alternator Output and control leads
according to appropriate wiring diagram.
13. Replace end bell cover.
14. Replace control box cover.