Thermo King Super II SR+, Manual, Page: 105 / 145

Refrigeration Service Operations (Rev 6/98)
95
Liquid Line Check Valve
Installation
1. Inspect the inside of the check valve body for damage
or foreign particles which might adhere to the seat and
damage the new seat. If the body is damaged, replace
the check valve.
2. Install the new seat and spring. Place a new gasket on
the cap and tighten the cap.
3. Pressurize the low side and test for leaks.
4. If no leaks are found, evacuate the system.
1. Body
2. Seat
3. Spring
4. Gasket
5. Cap
1
2
3
5
4
AEA1376
5. Install the fan module, the fan belt, and both idler pul-
leys. Tighten the fan belt to the proper tension, and
install the grille.
6. Open the refrigeration valves and run the unit. Check
the refrigerant charge and compressor oil.
LIQUID LINE CHECK VALVE
REPLACEMENT
Removal
1. Pump down the low side and equalize the pressure to
slightly positive.
2. Remove the grille, both idler pulleys, the fan belt, and
the fan module.
3. Unsolder the lines and remove the check valve.
NOTE: Disassemble the valve before unsoldering.
Installation
1. Clean the tubes for soldering.
2. Place the disassembled check valve in position. The
arrow on the valve body indicates the direction of
refrigerant flow through the valve.
3. Solder the inlet and outlet connections. After the valve
cools, reassemble the valve.
4. Pressurize the low side and test for leaks.
5. If no leaks are found, evacuate the system.
6. Install the fan module, the fan belt, and both idler pul-
leys. Tighten the fan belt to the proper tension, and
install the grille.
7. Open the refrigeration valves and run the unit. Check
the refrigerant charge and compressor oil.