GMC S Series 1994 Repair Manual Download

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Q ] SEAL

[ U J 9553-01

(TJ J 33011

( U J 23128-A

0 O-RING

[ | ] J 34614

Remove or Disconnect

Recover the refrigerant using J 39500-G M .

Loosen and reposition com pressor in m ounting brackets,
if necessary.

Remove clutch plate and hub assem bly from com pressor

as described in m inor repairs.

Remove the shaft seal retainer ring, using snap ring
pliers J 5403 (Fig. 21).

Thoroughly clean inside o f com pressor neck area

surrounding the shaft,  the exposed portion o f the seal, the
retainer  ring  groove  and  the  shaft  itself.  Any  dirt  or
foreign  m aterial  getting  into  com pressor  m ay  cause

dam age.

Fully  engage  the  knurled  tangs  of  Seal  R em over-
Installer J  2312 8 -A   into the  recessed  portion  o f the  Seal
by  turning  the  handle  clockw ise.  R em ove  the  Seal  from
the  com pressor  with  a  ro tary -p u llin g   m otion  (Fig.  22).
Discard  the  seal.  The  handle  m ust  be  hand-  tightened
securely.  Do  not  use  a  w rench  or  pliers.

Remove  and  discard  the  seal  seat  O -ring  from   the
com pressor  neck  using  O -ring  rem over  J  9553-01,
Figure  20.

Recheck the shaft and inside o f the com pressor neck for

dirt or foreign m aterial and be sure these areas are
perfectly clean before installing new parts.

Clean

•

Thoroughly clean O -ring seal groove in front head.

NOTICE:

Seals should not be re-used. A lw ays use a

new  specification  service  seal  on  rebuild  (Fig.  18).  Be
sure  that  the  seal  to  be  installed  is  not  scratched  or
dam aged  in anyway.  M ake  sure that the seal  seat and seal
are free o f lint and dirt that could dam age the seal  surface
or prevent  sealing.

Install or Connect

Dip the new seal seat O -ring in clean 525 viscosity

refrigerant oil and assem ble onto O -ring installer
J 33011, Figure 20.

Insert  the  O-ring  installer  J  33011  into  the  com pressor
neck  until  the  installer  “bottom s” .  Low er  the  m oveable
slide o f the  O-ring  installer to  release the  O -ring  into the
seal  O -ring  lower  groove.  (The  com pressor  neck  top

groove is for the shaft seal retainer ring.) R otate the

installer to seat the O -ring and rem ove the installer.

Dip the new seal in clean 525 viscosity refrigerant oil and

assem ble seal to Seal Installer J 2 3 1 2 8 -A , by turning

handle  clockwise.  The  stam ped  steel  case  side  o f  the
lip  seal  must  be  engaged  with  knurled  tangs  of  installer
so  that  flared-out  side  o f  lip  seal  is  facing  and
installed  towards  the  com pressor.  Install  seal  protector

J 34614, in the seal lip and place over the com pressor

shaft,  Figure  22,  and  push  the  seal  in  place  with  a
rotary  motion  or  place  the  seal  protector  J  34014  over
end  of  com pressor  shaft,  Figure  22,  and  slide  the  new

GMC S Series 1994, Repair Manual

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