Thermo King SB-190 30, Manual

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Refrigeration Service Operations (Rev. 12/03)
68
8. Install the key in the keyway. As above, it should fit with
a light press fit requiring only a minimum of light tap-
ping. Do not install the key into the keyway beyond
the front face of the coupling. If tapped in farther it
may cause the coupling to move off center on the shaftt.
9. Re-install the bolt and heavy flat washer and snug the
bolt down by hand. Torque the bolt to 90 ft-lb
(122 N•m).
10. Spray a corrosion inhibitor (such as spray paint) on the
exposed part of the shaft and the joint between the shaft
and the coupling. This prevents moisture from wicking
into the joint and causing corrosion.
CONDENSER COIL
Removal
1. Recover the refrigerant charge.
2. Open the roadside condenser fan grille.
3. Drain engine coolant from the expansion tank. Unbolt
and remove the expansion tank from the condenser coil
frame.
4. Remove the condenser coil mounting bolts. Remove
the mounting clamps from the condenser inlet line.
5. Unsolder the inlet line and liquid line connections. Lift
the coil from the unit.
Installation
1. Clean the fittings for soldering.
2. Place the coil in the unit and install the mounting bolts.
3. Solder the inlet line and liquid line connections.
4. Pressurize the refrigeration system and test for leaks. If
no leaks are found, evacuate the system.
5. Install the clamps on the condenser inlet line.
6. Install the engine coolant expansion tank and refill half
way with engine coolant.
7. Close hinged roadside condenser fan grille.
8. Recharge the unit with proper refrigerant and check the
compressor oil.
1
2
3
4
5
AGA1254
1. Compressor Coupling or Clutch
2. Key tapped flush with outside face of coupling.
Do not tap key any farther into keyway.
3. Torque bolt to 90 ft-lb (122 N•m)
4. Washer
5. Spray this area with corrosion inhibitor after
assembling.
Compressor Coupling Installation