GMC 1976 ZEO 6083 Maintenance Manual page 111

1- 94 AIR CONDITIONING SYSTEM
8 . When all parts are in proper alignment, tap
with a clean wood block and mallet to seat the rear
half of the cylinder over the locating dowel pins . If
necessary, clamp the cylinder in Compressing Fix-
ture J-9397, to complete drgwing the cylinder halves
together .
9. Generously lubricate all moving parts with
clean 525 viscosity refrigerant oil and check for free
rotation of the parts.
10 . Replace the suction cross-over cover (figure
95). Compress the cover as shown to start it into the
slot, and then press or carefully tap it in until flush
on both ends .
RE-INSTALL
1 . Place internal mechanism on Internal Assem-
bly Support Block J-21352, with rear-end of shaft in
block hole.
2 . Now install new O-ring and bushing on front-
end of discharge cross-over tube (figure 96). The O-
ring and bushing are Service parts only for internal
mechanisms that have been disassembled in the field
(See figure 92).
Install front suction reed plate on front cylinder
half. Align with dowel pins, suction ports, oil return
slot, and discharge cross-over tube (figure 97).
Figure 95-Installing Suction Cross-Over Cover
Figure 96-Installing O-Ring on Discharge Cross-Over
Tube
5 . Install front discharge valve plate assembly,
aligning holes with dowel pins and proper openings
in front suction reed plate (figure 98).
Front discharge plate has a large diameter hole
in the center (figure 99).
6. Coat sealing surfaces on webs of compressor
front ehad casting with 525 viscosity refrigerant oil .
Figure 97-Installing Front Suction Reed