Advance vane housing cover and accessory drive gearshaft

c . Inspection and Repair. R e f e r t o p a r a g r a p h s

(6) Advance vane housing cover and ac-

6-3 and 6-4, and (1) through (7), below.

cessory drive gearshaft. Refer to figure 6-186.

( 1 ) Fan drive gearshaft and fan drive bevel

(a) Cut four pins 7 / 16-inch (approx.)

gearshaft. Inspect fan driven gearshaft (50.1,

l o n g from 7 / 32-inch diameter brass brazing rod

fig. B-26) and fan drive bevel gearshaft (5C2,

o r other soft material. Insert the pins in the four

fig. B-26) to limits specified in overhaul stan-

equally spaced holes in bearing portion of ad-

vance vane cover. An improvised ring com-

(2) Oil seal. Replace the oil seal each

pressing tool of the type shown in figure 2-1 can

overhaul.

b e fabricated to facilitate removal, of the advance

vane cover internal retaining ring. If the im-

(3) C l u t c h a s s e m b l y . R e f e r t o p a r a g r a p h 6 -

40c and tables 6-26 or 6-27.

p r o v i s e d tool is used, install it over the pins and

(4) Advance unit seals and springs. I n s p e c t

t i g h t e n bolts sufficiently to compress the advance

seals and springs for cracks, indentations, and

vane cover internal retaining ring.

wear. Check seals to the limits specified in

(b) Install accessory drive gearshaft in a

overhaul standards (table 6-31).

soft-jawed vise and remove advance vane

(5) Flyweight springs. I n s p e c t f l y w h e e l

housing cover (A) using a gear puller as shown in

springs for cracks and damage. Check spring

t e n s i o n to limits specified in overhaul standards

plug (B) from accessory drive gearshaft.

( 6 ) S t u d s . Refer to paragraph 6-4e, table 6-

C a u t i o n ; Use extreme care in this operation to

32, and figure 6-187 when replacing studs.

prevent damage to vane cover or gearshaft.

b. Cleaning. Refer to paragraph 6-2.

6-152