Chevrolet 1977 light duty truck, Руководство по обслуживанию

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C O N D IT IO N POSSIBLE CAU SE C O R R E C TIO N
Pulls
1. Incorrect tire pressures. 1. In fla te e v e n ly on both sides to
th e recom m ended pressures.
2. Front e n d out o f lin e . 2. C heck a n d a lig n to m an u factu rer's
sp e cificatio n s.
3. U n m a tch e d tires on same
a x le .
For r a d ia l tire le a d
re fe r to Section 3E.
3 . Tires w ith a p p ro x im a te ly the
sam e am o un t of tre a d should
b e used on the same a x le .
4 . Restricted b ra k e pipes
or hoses.
4 . C heck fo r solf hoses a nd
d a m a g e d lines. R e p la c e w ith
new hoses a n d new d o u b le ­
w a lle d steel b ra k e tu b in g .
5. M a lfu n c tio n in g c a lip e r
assem bly.
5 . C heck fo r stuck or sluggish
pistons, p ro p e r lu b ric a tio n .
Remove a n d re b u ild c a lip e r.
6. D efec tiv e or d a m a g e d
shoe a n d lin in g (g re a s e
or b ra k e flu id on
lin in g or b en t shoe).
6 . Install new shoe a n d lin in g
in co m p le te a x le sets.
7. M a lfu n c tio n in g re a r
b rakes.
7 . C heck fo r in o p e ra tiv e a u to
a d ju s tin g m echanism , d e fe c tiv e
lin in g (g re a s e or b ra k e
flu id on lin in g ) or
d efe c tiv e w h e e l cylinders.
R e p a ir as necessary.
8. Loose suspension p arts. 8. C heck a n d to rq u e a ll
suspension mountings to
s pecification s.
9. Loose c a lip e rs . 9 . C heck a n d to rq u e bolts to
sp e cificatio n s.
N o ise (h ig h p itc h e d squ e a k
w ith o u t b ra k e a p p lie d ) .
1. Front lin in g s w orn out.
1. R e p la c e linin gs.
B rake roughness o r c h a tte r
(P e d a l Pulsates)
1. Excessive la te r a l runout. 1. C heck p e r instructions a n d
re p la c e or m ach ine rotor,
if not w ith in s p ecification s.
2. P a ra lle lis m not w ith in
s pecification s.
2 . C heck p er instructions a n d
re p la c e or m ach ine the rotor,
if not w ith in specification s.
3. W h e e l B e a rin g s not
a d ju s te d .
3 . A djust w h e e l b e a rin g s to
correct s p ecification s.
4 . R ear drums out o f ro u nd . 4 . C heck runout a n d , if not
w ith in s p e c ifica tio n s , turn
the drums (no t over
m axim um o f 0 .0 6 0 on the
d ia m e te r).