Thermo King SB-190 30, Manual

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83
Structural Maintenance
UNIT AND ENGINE MOUNTING BOLTS
Check and tighten all unit and engine mounting bolts during
scheduled maintenance inspections. Torque the unit mount-
ing bolts to 60 ft-lb (81 N•m). Torque the engine mounting
bolts to 150 ft-lb (203 N•m).
UNIT INSPECTION
Inspect the unit during pre-trip inspection and scheduled
maintenance inspections for loose or broken wires or hard-
ware, compressor oil leaks, or other physical damage which
might affect unit performance and require repair or replace-
ment of parts.
CONDENSER, EVAPORATOR, AND
RADIATOR COILS
Clean the coils during scheduled maintenance inspections.
Remove any debris (e.g., leaves or plastic wrap) that
reduces the air flow. Clean dirty coils with compressed air
or a pressure washer. Be careful not to bend the fins when
cleaning a coil. If possible, blow the air or water through the
coil in the direction opposite the normal airflow. Repair bent
fins and any other noticeable damage.
DEFROST DRAINS
Clean the defrost drains during scheduled maintenance
inspections to be sure the lines remain open.
UNIT INSTALLATION
All nuts that hold the unit to the trailer are accessible using
an impact wrench with a 10 in. extension, ball-type swivel
and a deep-well socket.
NOTE: The nuts for mounting the unit should be elastic
stop nuts (Nylock type).
1. Check Bolts for Tightness
Unit and Engine Mounting Bolts
1
AJA894
AJA888