GMC 1990 Light Truck Repair Manual page 106

3B2-4 MANUAL STEERING
REMOVE
1 L o o s e n lock nut U se p u nch
a g a in st e d g e o f slot
2 R e m o v e parts as sho w n
NOTICE:
U se care that the ball nut d o e s not run
d o w n to either end of the w orm
to the e n d s of the bail g u id e s if the ball nut is allo w ed
to rotate until sto p p e d at the end of the w orm
W O R M B E A R IN G
A O J U S T E R L O C K N U T
R em o ve bearing cup
from housin g on ly
if necessary.
R em o ve C u p
INSTALL
1 Install parts as sho w n
D a m a g e m ay be do n e
Tool A
Install Cup
Figure 3— Model 525 — Chart B
DISASSEMBLE
1. Pry lower bearing retainer
out with screwdriver.
2. Remove cup using
J 29369-1 puller and
slide hammer.
W O R M B E A R I N G
A D J U S T E R
L O W E R W O R M
B E A R I N G C U P
L O W E R W O R M
B E A R I N G
/ L O W E R B E A R I N G R E T A I N E R
)Q f /
' C h
S. DISASSEMBLE AND ASSEMBLE
WORMSHAFT AND BALL NUT
DISASSEMBLE
1 D isa ss e m b le p arts a s
sh o w n
2 C le a n an d in sp ect all
p a r t s to r e x c e s s i v e
w ear
* * B A L L S
B A L L G U I D E C L A M P
B A L L G U I D E
C L A M P S C R E W S
5 . 5 N m (4 F T . L B S .)
A s s e m b le w orm sh aft
j
D im en sio n A -M e a s u r e land
I b e tw ee n ban g r o o v e s
I
I
ASSEMBLE
1. P ress cup into adjuster
using Tool A.
2. Install parts as shown.
ASSEMBLE
1 A s s e m b l e p a r t s a s
sh o w n
2 R efer to F ig A for
n um ber ot balls u se d
Dim A
B a lls
mm in per circuit
0 04
1 0 2 5
2 5 0 1 0 2 7
5 0 0 2 0 2 7
F5903