GMC 1982 Light Duty Truck Service Manual page 254

3B2-10 MANUAL STEERING GEAR
3. REMOVE AND INSTALL WORMSHAFT
AND BALL NUT
REMOVE
1. Loosen lock n ut Use p u n c h
against edge o f slot
2 R em ove parts as show n
Use care th a t the ball nut does not run
N O TICE:
dow n to e ith e r end o f the w o rm D am age m ay be done
to the ends o f the ball g u id e s if the ball nut is allo w e d
to rotate u n til sto p p e d at the end o f the w orm .
W O R M B E A R IN G
A D JU S TE R L O C K N U T
BRASS
Remove bearing cup
fro m housing o n ly
if necessary.
Remove Cup
INSTALL
Install parts as show n
1
J-5755
Install Cup
Fig. 3B2-13--M anual G ear O verhual, C hart B
4. DISASSEMBLE AND ASSEMBLE WORM
BEARING ADJUSTER
DISASSEM BLE
Pry low er bearing re­
ta in er out w ith scre w ­
d rive r
R e m o v e c u p u s in g
J-5822 p u lle r and
slide ham m er.
W O R M B E A R IN G
A D J U S T E R
LO W E R W O R M
B E A R IN G C U P
LO W E R W O R M
B E A R IN G
LO W E R B E A R IN G R E T A IN E R
/
/
5. DISASSEMBLE AND ASSEMBLE
WORMSHAFT AND BALL NUT
DISASSEM BLE
1 D isassem ble parts as
show n
2 C lean and insp e ct all
p a r ts fo r e x c e s s iv e
wear
/
* \ B A L L G U ID E S
B A LL S
B A L L G U ID E C L A M P
B A L L G U ID E
C L A M P S C R EW S
N AR R O W END OF TO O T H
A ssem ble w orm sha ft
j
D im en sio n A -M easure land
I betw een ball grooves
Fig A
ASSEM BLE
1. Press cu p in to ad ju ster
using J-5755
2 Install parts as show n.
ASSEM BLE
A s s e m b le p a r ts as
1
show n
2 R efer to Fig A for
n u m b e r of balls used
B A L L N U T
W O R M S H A F T
D im A B alls
in per c irc u it
mm
0 04 25
1 0
27
2.5
0 10
27
5 0
0.20