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STEERING
19 - 13
(4) Insert t h e p i t m a n (sector) shaft i n t h e steering
gear housing shaft bore a n d inspect for excessive
shaft or housing shaft bore wear. The shaft should
have a smooth, "bind-free" fit w i t h no visible side
play w h e n installed i n t h e shaft bore.
(5) I f the shaft fit i s loose b u t i t is not v i s i b l y w o r n ,
t r a i l fit a replacement p i t m a n (sector) shaft i n t h e
housing shaft bore. I f t h e replacement shaft also has
a loose f i t , replace t h e housing. However, i f the re-
placement p i t m a n fits properly, replace t h e o r i g i n a l
p i t m a n (sector) shaft.
(6) Measure t h e p i t m a n shaft adjustment screw fit
and "end-play" i n t h e T-slot (Fig. 14). When i n -
stalled, the adjustment screw m u s t rotate freely and
not b i n d i n any position. Measure the "end-play" b y
i n s e r t i n g a feeler gauge between the screw head and
the T-slot surface. T h e " e n d - p l a y " m u s t not ex-
c e e d 0.05 m m (0.002 i n ) . I f t h e " e n d - p l a y " ex-
ceeds t h e s p e c i f i e d
l i m i t , select a n d i n s t a l l a
r e p l a c e m e n t s h i m t h a t r e d u c e s t h e " e n d - p l a y " t o
b e l o w t h e s p e c i f i e d l i m i t .
Fig. 14 Adjustment Screw End-Play Measurement
(7) Inspect t h e wormshaft shaft upper bearing and
b e a r i n g cup for wear, looseness, flat spots, p i t t i n g ,
cracks, and other damage. I f either t h e bearing or
the bearing cup is damaged, both components must
be replaced.
(8) I f the cup fits loosely i n t h e housing, t r i a l fit a
replacement
cup. I f t h e replacement
cup also
fits
loosely, replace t h e housing. I f the replacement cup
fits properly, replace only t h e o r i g i n a l bearing cup.
ASSEMBLY
(1) I f the o r i g i n a l wormshaft upper bearing cup
m u s t be replaced because of damage, remove i t w i t h
a hammer and a brass punch (Fig. 15).
BEARING
CUP
J8919-20
Fig. 15 Wormshaft Upper Bearing Cup Removal
Fig. 16 Wormshaft Upper Bearing Cup Installation
(2) I n s t a l l a replacement bearing cup w i t h a n ap-
propriate i n s t a l l a t i o n tool (Fig. 16).
D o not i n s t a l l t h e w o r m s h a f t
o r the p i t m a n
shaft s e a l s a t this time.
(3) Lubricate a l l the components w i t h chassis l u b r i -
cant.
(4) Place t h e steering gear housing i n a vise.
Clamp t h e vise jaws on the housing m o u n t i n g bosses
only.
(5) I n s t a l l t h e wormshaft and b a l l n u t i n the steer-
i n g gear housing.
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