Table of Contents
Advertisement
CUSTOM AIR CONDITIONING
1 8-5 1
Fig. 18-82 1977 A-6 Pistons Positioned in Stair-Step
Arrangement
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 Fixture J 9397, to complete drawing
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 (Fig. 1B-83).
Compress the cover as shown to start it into the slot, and then
press or carefully tap it in until flush on both ends.
A-6 COMPRESSOR INTERNAL
MECHANISM
Re-Install
1. Place internal mechanism on Internal Assembly
Support Block J 21352, with rear-end of shaft in block hole.
2. Now install new O-ring and busing in front-end of
discharge cross-over tube (Fig. 1B-84). The O-ring and
bushing are Service parts only for internal mechanism that
have been disassembled in the field (Also see Fig. 1B-80).
3. Install new dowel pins in front cylinder half, if
previously removed.
4. Install front suction reed plate on front cylinder half.
Align with dowel pins, suction ports, oil return slot, and
discharge cross-over tube (Fig. 1B-85).
5. Install front discharge valve plate assembly, aligning
holes with dowel pins and proper openings in front suction
reed plate (Fig. 1B-86).
Fig. 18-83 Installing 1 9 7 7 A-6 Suction Cross-over Cover
Fig. 18-84 Installing 0-Ring On 1977 A-6 Discharge
Cross-Over Tube
Front discharge plate has a large diameter hole in the
center (Fig. 1B-87).
6. Coat sealing surfaces on webs of compressor front
head casting with clean 525 viscasity refrigerant oil.
7. ~ e t e r m i n e exact position of front head casting in
relation to dowel pins on internal mechanism. Mark position
of dowel pins on sides of front head assembly and on sides
of internal mechanism with a grease pencil. Carefully lower
front head casting into position (Fig. 1B-88), making
certain that sealing area around center bore of
head assembly does not contact shaft
as
head
assembly is lowered. Do not rotate head assembly to
line up with dowel pins, as the sealing areas would contact
reed retainers.
8. Generously lubricate new O-ring and angled groove
at lower edge of front head casting with 525 viscosity
refrigerant oil and install new O-ring into groove (Fig. 1B-89).
9. Coat inside machined surfaces of compressor shell
with 525 viscosity refrigerant oil and position shell on internal
mechanism, resting on O-ring seal.
10. Using flat-side of a small screwdriver, gently position
O-ring in around circumference of internal mechanism until
Advertisement
Table of Contents
