Gradall 534B (9020-7317) Service Manual - Manual (Page 227)

10.
WARNING: When rebuilding the unit, the ‘O’
rings and Retaining Rings should always be
W3-P “A” Drive
Disassembly Procedure
Loosen all 12 Cover Bolts and drain the oil
from the unit.
R e m o v e t h e 1 2 C o v e r B o l t s a n d l i f t o ff t h e
C o v e r S u b - A s s e m b l y. D i s c a r d t h e ‘ O ’ r i n g
S e a l f r o m t h e C o v e r c o u n t e r b o r e .
L i f t o u t t h e C a r r i e r S u b - A s s e m b l y a n d
T h r u s t B e a r i n g S e t . A T h r u s t Wa s h e r m a y
s t i c k i n s i d e t h e C o v e r.
Pry the Ring Gear loose and remove it.
Discard the ‘O’ ring Seal from the Hub
counterbore.
R e m o v e t h e I n p u t S h a f t . I n p u t G e a r, a n d
t h e T h r u s t S p a c e r s t h a t a r e o n t h e I n p u t
S h a f t .
L i f t o u t t h e I n t e r n a l G e a r a n d T h r u s t
B e a r i n g S e t . A T h r u s t Wa s h e r m a y s t i c k
t o t h e b o t t o m o f t h e C a r r i e r.
R e m o v e t h e R e t a i n i n g R i n g f r o m t h e
S p i n d l e a n d d i s c a r d ; t h e n l i f t t h e h u b o f f
t h e S p i n d l e .
E y e p r o t e c t i o n s h o u l d b e w o r n d u r i n g
R e t a i n i n g R i n g r e m o v a l .
T h e i n s i d e B e a r i n g C o n e a n d t h e B e a r i n g
S h i m c a n n o w b e r e m o v e d .
T h e S e a l c a n b e p r i e d o u t o f t h e H u b w i t h
s c r e w d r i v e r o r p r y b a r. T h i s w i l l a l s o
a l l o w t h e o u t s i d e B e a r i n g t o b e r e m o v e d .
Note: I f b e a r i n g r e p l a c e m e n t i s n e c e s s a r y,
t h e B e a r i n g C u p s c a n b e r e m o v e d
w i t h a “ s l i d e h a m m e r p u l l e r ” o r d r i v e n
o u t w i t h a p u n c h .
1.
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3.
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5.
6.
8.
7.
9.
To remove the Cluster Gears from the
Carrier, drive the anti-roll pin into the
Planet Shaft of the Cluster Gear. After the
Planet Shaft is removed the roll pin should
be driven out of the Planet Shaft.