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Disassembly and Reassembly
35
Two-piece Compressor Seal
Plate and Mounting Flange
Assembly
In the third quarter 1988 the compressor seal
plate/mounting flange was changed to a two-piece
assembly. This change allows removal of the
mounting flange without losing the refrigeration
charge. The two-piece assembly uses nine bolts,
six mount the flange, and three mount the seal
plate.
Seal Plate Assembly
Over the past several years the following four
types of seals have been used to seal the drive end
of the crankshaft from leaking refrigerant.
•
Spring Loaded Neoprene Bellows Type—Two
Cylinder Compressors
•
Metal Bellows Type With Set Screws—Four
Cylinder Compressors with 1.0 in. diameter
crankshafts
NOTE: Early four cylinder compressors with
1.0 in. diameter crankshafts used a neoprene
bellows seal. These seals should be replaced
with a metal bellows type if using R404A,
R407C, R134A, or R22 refrigerants.
•
Metal Bellows Type With Drive Tangs—Four
Cylinder Compressors with 1.187 in. diameter
crankshafts
•
Metal Bellows Type With Hex Drive—Four
Cylinder Compressors with 1.187 in. diameter
crankshafts and pressurized seal cavity
Removal
1. Remove the Seal Plate/Mounting Flange.
Two-Piece Seal Plate/Mounting Flange Only
a. Remove the six mounting flange bolts and
remove the mounting flange.
b. Remove the three seal plate bolts and use a
slide hammer to remove the seal plate.
NOTE: Use slide hammer P/N 204-638 and
adapter P/N 204-640 to obtain the 5/16-18
male thread needed to fit the seal plate.
1.
Dust Seal (Lip Seal)
2.
Seal Plate
3.
Three Seal Plate Mounting Holes
4.
Mounting Flange
5.
Six Mounting Flange Holes
Figure 23: Two-Piece Seal Plate/Mounting Flange
2
4
3
3
3
5
AGA583
1
1.
Slide Hammer
2.
Adapter P/N 204-640
Figure 24: Two-Piece Seal Plate Removal
AGA588
1
2