R Efrigerant Line Connection Torque S P E C I F I C A T I O N; Air Conditioning Specifications - Chevrolet 70 Series 1970 Service Manual

CAB AND BODY MOUNTINGS 1-142
OUTSIDE DIAMETER
OF METAL TUBING
1 /4
3 /8
1 / 2
5 /8
3 /4
NOTE: Steel torques to be used only when tube is mated s t e e l-to - s te e l. If ste e l
connection is made to aluminum or copper tube fittin gs, u se appropriate "ALUM­
INUM OR COPPER" torque sp ecification s.
REFRIGERANT LINE CONNECTIONS
TORQUE SPECIFICATIONS
TORQUE F T .-L B S.
(STEEL)
10 - 15
30 - 35
30 - 35
30 - 35
30 - 35

AIR CONDITIONING SPECIFICATIONS

Com pressor
T y p e ..................................................................................................................................6 C ylin d er A x ia l
D is p la c e m e n t........................................................................................................................12.6 cu. in.
R o ta tio n ...........................................................................................................................................Clockw ise
Com pressor Clutch Coil
O h m s (a t 8 0 ° ) ..........................................................................................................................................3.85
A m p s , (at 8 0 ° ) ..................................................................................................................... 3 .2 @ 12 V
System C ap acities:
Refrigerant (A lu m in u m T ilt C a b ) .................................................................... 4 lb. 8 o z.
Refrigerant (Conventional C a b ) .........................................................................3 lb. 4 o z.
525 Viscosity Refrigerant O il (E n tire S y s te m )..............................1 1 fluid o z.
Com pressor D rive Belt T e n s io n * (V -B e lt)
N e w ...............................................................................................................................................120-130 lbs.
U s e d ....................................................................................................................................................80-90 lbs.
Com pressor D rive Belt T e n s io n ** (P o ly V -B e lt)
N e w ..................................................................................................................................................... 84-94 lbs.
U s e d ....................................................................................................................................................6 4-74 lbs.
Evacuation Period (@ 2 6 to 28 in. of v a c u u m )............................. 15 to 30 m in .
*U s in g J -2 3 5 7 3 B elt Tension Gauge.
* * Using J -23586 Belt Tension Gauge.
Do not u se lighted Leak D etector (J-6084) in
any area w here com bustible vapors may be p resen t.
Although the torch flam e is sm a ll and w e ll p ro­
tected , it is recom m ended that a fir e extinguisher
be placed n ear-by for any em ergency that may a r ise .
TORQUE F T .-L B S.
ALUMINUM OR COPPER
5 - 7
11 - 13
15 - 20
21 - 27
28 - 33
CHEVROLET SERIES 70-90 HEAVY DUTY TRUCK SHOP MANUAL