110
TK 61555-2-MM-EN
Figure 88.
Check Valve Assembly
1.
Piston
4.
Stem
2.
Snap Ring
5.
O-ring
3.
Cap
6.
Spring
4.
Unscrew the check valve stem by using a screwdriver in the slot provided.
N
No
otte
e:: The spring and piston are held in by the stem. While removing the stem, use care so
the spring and piston are not lost.
5.
Remove the spring and piston.
6.
Inspect the check valve seat in the three-way valve.
7.
If replacement parts are needed, a kit P/N 60-163 must be used which includes the piston,
spring, O-ring, valve stem, and snap ring.
Installation
1.
Coat the O-ring with compressor oil and install it on the check valve stem.
2.
Insert the spring into the hole in the check valve stem and then install the piston on the other
end of the spring with the hole in the piston towards the spring.
N
NO
OT
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E
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3.
Coat the entire assembly with compressor oil and install the assembly into the check valve
seat in the three-way valve.
4.
Screw the check valve stem into the three-way valve until the snap ring can be installed.
5.
Install the snap ring.
6.
Unscrew (back seat) the check valve stem against the snap ring.
N
No
otte
e:: The valve stem must be back seated during normal unit operation.
7.
Coat the sealing area in the cap with compressor oil, install and tighten the cap on the three-
way valve.
8.
Pressurize the refrigeration system and test for leaks. If no leaks are found, evacuate the
system.
9.
Recharge the unit with the proper refrigerant.
