2202G1JE-DA-M-N_2010.01.
7 Related Document
Reciprocating Compressor M Series
7.7 Parts Inspection and Replacement Standards
7-33
Fig. 7-12 Measurement positions of seat
No.
Description
No.
Description
1
Discharge plate valve
4
Valve plate
2
Suction plate valve
5
Cylinder sleeve
3
Discharge valve seat
Mechanical
Seal
1.
Inspect the sliding surface of the mechanical seal (retaining ring) and the mechanical seal (rotating ring).
If the sliding surface is lustrous, the mechanical seal is in a good condition.
If the sliding surface is uneven, replace the mechanical seal as an assembly.
2.
Inspect the sliding surface of the floating seat for chips and cracks.
If the sliding surface is chipped or cracked, replace the mechanical seal as an assembly.
3.
Replace the “O”ring when disassembling and inspecting.
Piston/ Piston Pin/ Piston Ring
1.
Inspect the piston for scratches.
If scratches are found, repair it by using a grinding stone.
If scratches are found in the outer surface, repair it by grinding the surface at a right angle of the sliding
direction, using a grinding stone.
2.
Measure the outer diameter of the piston skirt section.
If the outer diameter is below the usage limit, replace the piston.
Measurement point
Standard
dimensions (mm)
Usage limit (mm)
Outer diameter of the piston skirt section
146 145.6
3.
Floating system is adopted for piston pin hole and the piston pin of the piston.
Measure the inner diameter of the piston pin hole.
If the inner diameter exceeds the usage limit, replace the piston.
Measurement point
Standard
dimensions (mm)
Usage limit (mm)
Inner diameter of the piston pin
45 45.1
