Disassembly and Reassembly
39
Installation of Metal Bellows Seal
With Set Screws
In May of 1992 Thermo King Corporation
introduced a new metal bellows crankshaft seal.
The current service part number is 22-1100. The
current replacement procedure follows:
1. Install the new lip seal in the seal plate with
the lip side facing out and the flat side facing
toward the compressor.
2. Apply clean compressor oil to the new O-ring
and install it in the seal plate. Apply clean
compressor oil to the new hard ring. Ensure
that the hard ring installation tool
(P/N 204-953) is clean. Use the hard ring
installation tool to push the hard ring (with the
polished surface toward the installation tool)
fully into the seal plate. Do not pinch the
O-ring.
If the installation tool is not available, use the
pad in the new seal packaging to protect the
polished surface of the hard ring during
assembly.
3. Back out the set screws from the new seal and
apply a small amount of removable thread
locking compound (Loctite 242-31-blue P/N
203-400) to the set screw threads.
1.
Lip Side Facing Out
2.
Flat Side Toward Compressor
Figure 37: Lip Seal Installation
1.
This Side Toward Seal Plate
2.
This Side Toward Compressor
Figure 38: Hard Ring Positions
1
ARC010
2
1
2
ARC024
1.
Seal Plate
2.
O-ring
3.
Hard Ring—Install with Polished Surface
Toward Compressor
4.
Hard Ring Installation Tool P/N 204-953
Figure 39: Hard Ring Installation
CAUTION: Do NOT touch or damage the
polished seal face surfaces.
CAUTION: Keep the orange protective
cap in position until final assembly.
1.
Clamp Ring
2.
Orange Protective Cap
Figure 40: Cross Section of Set
Screw Type Bellows Seal
1
2
3
4
ARC011
2
1
AGA576
