Chevrolet 10 Series 1970, Руководство по обслуживанию

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REAR SUSPENSION AND DRIVE LINE 4-44
2. Make sure inner b earin g, o il sea l, o il sea l sle e v e ,
axle housing o il d e fle c to r, and inner bearin g race and
o il seal a re p ro p e rly positioned.
3. Install hub and drum assem bly on axle housing, e x e r ­
cisin g ca re so as not to damage o il sea l o r dislocate
other internal components.
4. P la c e outer b earin g cone and r o lle r assem bly on
axle housing and p re s s fir m ly into hub (fig . 78).
5. Install adjusting nut and tighten nut to sp ecification s.
6. In stall nut lo ck and align nut so that a tang o f the nut
w ill engage a fla t on the adjusting nut.
7. In stall locknut and torque to sp ecifica tion s. Bend
tang of nut lock o v e r fla t o f locknut.
8. In stall wheel assem bly.
NOTE: This wheel to brake drum fa sten er is an
im portant attaching p a rt in that it could affect
the p erform an ce o f v ita l components and s y s ­
tem s, and/or could resu lt in m a jo r r e p a ir e x ­
pense. It must be rep laced with one o f the same
p art number o r with an equivalent p art if r e ­
placem ent b ecom es n ecessary. Do not use a
replacem ent p art of le s s e r quality o r substitute
design. Torqu e valu es must be used as sp ecified
during rea ssem b ly to assure p ro p er retention o f
this part.
9. L o w e r v e h icle to flo o r and in stall axle shaft.
Drive Pinion O il Seal (Fig. 7 6 )
Replacem ent
NOTE: The pinion o il seal may be replaced
with the c a r r ie r assem bly in stalled in the
veh icle.
1. Disconnect p r o p e lle r shaft and rem ove pinion flange
and d e flecto r.
2. R em ove bolts retaining the o il seal re ta in e r to c a r ­
r ie r , and withdraw reta in er fro m pinion.
3. P r y old seal fro m b ore, using care so as not to dam ­
age machined su rface o f retain er.
4. Thoroughly clean a ll fo re ig n m atter fro m seal con­
tact area in reta in er.
5. Pack the cavity between the seal lip s with a high-
m elting point bearin g lubricant, position seal on
suitable in s ta lle r so that seal shoulders against
in s ta lle r d riv e su rface.
6. P r e s s seal into reta in er until it bottoms against
shoulder.
7. C arefu lly position seal reta in er o v e r pinion to p r e ­
vent damage to sea l, and torque retaining bolts to
sp ecification s.
8. R ein sta ll pinion flange and p ro p e lle r shaft.
NOTE: This p ro p e lle r shaft to pinion flange
fasten er is an im portant attaching part in that it
could a ffect the perform an ce o f v ita l components
and system s, and/or could resu lt in m ajor
r e p a ir expense. It must be replaced with one of
the same part number o r with an equivalent part
i f replacem ent becom es n ecessary. Do not use a
replacem ent part of le s s e r quality o r substitute
design. Torque values must be used as specified
during reassem b ly to assure p ro p er retention of
this part.
DRIVE LINE
REAR AXLE (EATON) TWO-SPEED
INDEX
Page Page
General D e s c rip tio n ................................................. ........................... 4-44 A x le V en t R e p la c e m e n t ............................................ ....................
4-46
Maintenance and A d ju s tm e n ts ............................... ........................... 4-44 A x le Shaft R em oval and Installation ...................... ....................
4-46
Com ponent Part R e p la c e m e n t............................... ........................... 4-45
Hub and D r u m ............................................................ .................... 4-46
A x le A s s e m b ly ..................................................... ........................... 4-46 Piston A ir Shift System ............................................ ....................
4-46
Rem oval ............................................................ ........................... 4-46 Drive Pinion O il Seal ................................................. .................... 4-49
Installation ........................................................ ........................... 4-46
GENERAL DESCRIPTION
Eaton tw o-speed a xles are available in three M odels
17201, 17221 (18,500) and 19201 (23,000).
A ll M odels are equipped with a s p ira l b evel ring gea r
and pinion. The two 18,500 lb. axles are the same except
fo r a la r g e r d riv e g ea r diam eter on the 17221 Model.
The 23,000 lb. axle is s im ila r in construction to the
18,500 lb. shown in F igu re 80 but many components are
o f in creased s ize to obtain the g re a te r capacity rating.
S ervice operations outlined in this section w ill be
applicable to both the 18,500 and 23,000 lb. axles, the
only exception being the shifting system s. The 18,500 lb.
axle uses an e le c tr ic pow er shifting arrangem ent which is
covered in “ R ear A xle (C h evro let) Tw o-Speed E le c tric
Shift System ” . The 23,000 lb. axle in corporates a Piston
A ir Shift which is covered in this section.
MAINTENANCE AND ADJUSTMENTS
Maintenance and adjustments fo r the Eaton Tw o-Speed C h evrolet Single-Speed axle. R e fe r to “ R ear A x le (Chev-
axles a re p erfo rm e d the same as those outlined fo r the ro le t) Single-Speed” .
CHEVROLET TRUCK SERVICE MANUAL