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M-SV-001-EN Rev. G
4.9.1 Compressor Housing End Cap Removal and Installation
4.9.1.1 Compressor Housing End Cap Removal
1. Isolate compressor power.
2. Isolate the compressor and recover the refrigerant according to industry standards. Refer to
"3.1 Refrigerant Containment" on page 41.
3. Remove the Interstage Pipe (TTH/TGH compressors only). Refer to "4.8.1 Interstage Pipe
Removal and Installation" on page 77.
4. Remove the End Cap.
a. For TTS/TGS compressors remove the eight (8) M10x40 fasteners that secure the
Compressor Housing End Cap to the compressor housing and remove the End Cap. Refer
to "Figure 4-39 Compressor Housing End Cap - TTS/TGS" on page 78.
b. For TTH/TGH compressors, remove the 10 M10x40 fasteners that secure the Compressor
Housing End Cap to the compressor housing and remove the End Cap. Refer to "Figure
4-40 Compressor Housing End Cap - TTH/TGH" on page 78.
5. Remove and discard the O-ring.
4.9.1.2 Compressor Housing End Cap Installation
1. Ensure that all components and threads are clear, clean, and oil free.
2. Clean, lubricate, and install the O-ring into the groove in the compressor housing.
3. Carefully line up the Compressor Housing End Cap and loosely install several of the M10x40
fasteners to hold the end cap in place. Refer to "Figure 4-39 Compressor Housing End Cap -
TTS/TGS" and "Figure 4-40 Compressor Housing End Cap - TTH/TGH".
4. Install the remaining fasteners and torque fasteners in a crisscross pattern to 32 Nm (24 ft.lb.).
5. Install the Interstage Pipe (TTH/TGH compressors only). Refer to "4.8.1 Interstage Pipe Removal
6. Leak test and evacuate compressor in accordance with standard industry practices.
7. Return the compressor back to normal operation.
4.9.1.3 Compressor Housing End Cap Torque Specifications
Table 4-13 Compressor Housing End Cap Torque Specifications
Description
Nm
Ft.Lb.
In.Lb.
Compressor Housing End Cap Fastener, M10x40
32
24
283
Interstage Pipe Fastener, M10x40
32
24
283
Economizer Flange Fastener, M10x30
32
24
283
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