Compressor Replacement (R; Compressor Replacement (G-Van) - GMC G Service Manual

IB-30 AIR CONDITIONING
COMPRESSOR REPLACEMENT
(R/V)
B
Remove or Disconnect (Figures 28, 29, 30,
31 and 32)
1. Battery negative cable.
2. Refrigerant from the system.
3. Hose plate attaching bolt (2) and washer.
4. Hose plate.
• Cap or plug open connections.
5. Electrical lead to the clutch actuating coil.
. Front and rear mounting bracket bolts, nuts and
6
spring washers.
• Loosen the bracket and pivot bolts.
7. Compressor belt.
. Compressor.
8
• Drain and measure the oil.
• Check for contamination.
Figure 28 — Hose Plate and Bolt Removal — Typical
H Install or Connect (Figures 28, 29, 30, 31
l—J and 32)
. Oil to the compressor.
1
] Important
• Replace with fresh oil. If the system was ser­
viced, install a full, fresh charge of refrigerant
oil.
2. Compressor.
• Position to the mounting brackets.
35 N-m (26 Ft. Lbs.)
7
1. Hose Assembly
2. Bolt
7. Compressor
F-02554
3. Mounting bracket nuts, bolts and spring washers.
4. Hose plate connector to the rear of the compressor.
P Important
• Use new seals (O-rings) coated with clean
refrigerant oil.
• Tighten the pivot bracket bolt.
5. Electrical lead to the coil.
. Compressor belt.
6
7. Battery negative cable.
\ ^ \ Adjust
• Belt. Refer to ENGINE COOLING (SEC. 6B1).
. Evacuate, charge and check the system.
8
COMPRESSOR REPLACEMENT
(G-VAN)
M Remove or Disconnect (Figures 33, 34, 35
and 36)
1. Battery ground cable.
2. Compressor clutch connector.
3. Refrigerant from the system.
4. Belt.
• Loosen the idler pulley adjustment screw.
5. Engine cover.
. Air cleaner.
6
7. Fitting and muffler assembly.
• Cap or plug all open connections.
. Mounting bracket bolts.
8
9. Compressor bracket.
10. Engine oil tube support bracket bolt and nut.
11. Clutch ground lead.
12. Compressor.
I ? | Important
• Drain and measure the oil. Check for contami­
nation. Refer to "Refrigerant Oil Distribution."
P H Install or Connect (Figures 33, 34, 35,
and 36)
. Oil to the compressor.
1
I ! | Important
• Replace with fresh oil. If the system was ser­
viced, install a full, fresh charge of refrigerant
oil.