TM 9-4910-663-12
Mounting Pulley Driven Generators/Alternators (fig 2-10).
b.
(1) On part number 7458-4, raise the hinged output shaft guards
on the test stand. Position the pivot arm to the drive-output shaft
desired, depending upon the speed range of the generator/alternator.
(2) Mount the 10-inch to 5-inch flange adapter (3) onto the
pivot arm and secure with 3/8-24 nuts.
(3) Mount the pulley adapter (5) with key (4) onto the drive
output shaft and tighten the set screws. Secure the pulley adapter to
the flange adapter by use of 3/8-24 nuts.
(4) Mount correct pulley (6) with key (11) on pulley adapter
shaft (5) and secure with nut and cotter pin.
(5) Mount the chain mounting assembly (7) loosely with the
locking handle (32, fig 2-7) and raise the assembly to its highest
point and tighten locking handle.
(6) Mount the generator/alternator in chain vise aligning driven
pulley in line with the driver pulley and circumventing the generator/
alternator with the chain. It may be necessary to loosen hex nut
(7) Insert pin of chain into chain retaining bracket (7, fig
Be certain that chain is clear of all electrical
terminals.
CAUTION
On some alternators the shell is of sheet metal
and clamping by means of the chain only may cause
internal rub and possible damage. Use of vise
mounting fixture (44, fig 2-7) or chain mounting
fixture (37, fig 2-7) will allow for proper mount-
ing.
(8) Install the pulley belts (8, fig 2-10) onto the driver
(9) Loosen the chain mounting assembly locking handle (32, fig
2-7) and
lower obtaining tension on the
belts. Tighten locking handle.
(10) After the above mounting procedures go to para 2-5 for
operation of the test stand.
Starters are mounted by use of the chain
c. Mounting of Starters.
mounting assembly (7, fig 2-10) or by use of the starter bracket (38,
2-23
Change 1