Compressor Pressure Relief Valve - GMC T Series 1994 Repair Manual

P I J 5403
SNAP RING
PLIERS
|~2~| SEAL SEAT
RETAINER
RING
______________________ ___________________ G 60060-1D 2-C R1
Fig. 21 Removing or Installing Shaft Seal
Retaining Ring
se a l o n t o th e s h a ft w i t h a r o t a r y m o t i o n until it stops.
T a k e c a r e n o t to d i s l o d g e th e O - r i n g . Be su re the seal
m a k e s g o o d c o n t a c t w ith th e O - r i n g . D i s e n g a g e the
i n s t a l l e r fr o m th e seal
J 2 3 1 2 8 - A a n d th e seal p r o t e c t o r J 3 4 6 1 4 .
NOTICE:
H a n d l i n g a n d c a re o f se al p r o t e c to r is
i m p o r t a n t . I f se al p r o t e c t o r is n i c k e d o r the b o t to m
f la r e d , the n e w seal m a y be d a m a g e d d u r i n g installation .
a n d r e m o v e the in staller
4. In sta ll th e n e w seal r e t a i n e r r in g w i t h its flat sid e a g a i n s t
th e S e a l, u s in g S n a p - R i n g P liers J 5 4 0 3 . S e e F i g u r e 21.
U s e th e s l e e v e f ro m Q - r i n g in s t a l l e r J 3 3011 to p r e s s in on
the se a l r e ta in e r r in g so th at it s n a p s in to its g r o o v e .
5. To le a k test, install
J 3 9 8 9 3 o n r e a r h e a d o f c o m p r e s s o r a n d c o n n e c t g a g e
c h a r g i n g lin e s a n d J 3 9 5 0 0 - G M R e f r i g e r a n t R e c o v e r y
S y s t e m . P r e s s u r iz e s u c t io n a n d h i g h - s i d e o f c o m p r e s s o r
w ith R - 1 3 4 a R e f r ig e r a n t . T e m p o r a r i l y install ( M 9 x 1.25
t h r e a d o n s h a f t) n u t
h o r i z o n t a l p o s i t io n ,
n o r m a l d i r e c ti o n o f r o t a t i o n s e v e ra l t u r n s b y h a n d . L e a k
test th e se a l a r e a a n d c o r r e c t a n d le a k f o u n d . R e c o v e r the
r e f r i g e r a n t . R e m o v e sh a ft nut.
6. R e m o v e a n y e x c e s s oil r e s u l ti n g f r o m i n s t a l l in g th e n e w
seal p a r ts f r o m the sh a ft a n d i n s id e th e c o m p r e s s o r n e c k .
7. Install th e c lu t c h p la te a n d h u b a s s e m b l y a s d e s c r i b e d in
m i n o r r e p a i r p r o c e d u r e s .
8. R e in s ta l l c o m p r e s s o r belt a n d t ig h t e n b ra c k e t.
9. F v a c u a t e a n d c h a r g e th e r e fr i g e r a n t s y s te m .

COMPRESSOR PRESSURE RELIEF VALVE

Remove or Disconnect
1. R e c o v e r th e r e f r i g e r a n t u s i n g J 3 9 5 0 0 - G M .
2. R e m o v e o ld p r e s s u r e r e l i e f v a lv e (F ig . 19).
Install or Connect
1.
C l e a n v a lv e seat a r e a o n r e a r h e a d .
^
L u b r i c a t e O - r i n g o f n e w p r e s s u r e r e l i e f v a lv e a n d O - r i n g
a s s e m b l y w ith n e w 5 2 5 v i s c o s i ty r e f r i g e r a n t oil. Insta ll
n e w v a lv e a n d to r q u e in p l a c e , 9 .0 N * m (6.1 l b s . - f t . )
E v a c u a t e a n d r e c h a r g e th e s y s te m .
4.
L e a k test s y s te m .
c o m p r e s s o r leak test f i x tu r e
a n d , w i t h t h e c o m p r e s s o r
r o t a t e the c o m p r e s s o r sh a ft
G60250 1D2-C-R1
in
in