119
Structural Maintenance
Unit And Engine Mounting
Bolts
Periodically check and tighten all unit and engine
mounting bolts. Torque the unit mounting
bolts to 60 ft-lb (81.3 N•m). Torque the engine
mounting bolts to 50 ft-lb (68 N•m).
Unit Inspection
Inspect the unit during unit pretrip inspection and
scheduled maintenance inspections for loose or
broken wires or hardware, compressor oil leaks,
or other physical damage which might affect unit
performance and require repair or replacement 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 air flow.
Repair bent fins and any other noticeable damage.
Fan Location
When mounting the fan and hub assembly on the
fanshaft, position the assembly in the orifice with
30 to 35 percent of the blade width to the air
discharge side for proper fan performance.
Figure 76: Fan Blade Position in Orifice
NOTE: One evaporator fan rotates
clockwise (CW) and one evaporator fan rotates
counterclockwise (CCW—on engine side of unit,
viewed from inside the box).
CAUTION: Air pressure should not be
high enough to damage coil fins.
Содержание 919180
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Страница 32: ...Unit Description 32 Unit Photographs Figure 3 Front View Figure 4 Back View AJA584 AJA585...
Страница 33: ...Unit Description 33 Figure 5 Left Side View Figure 6 Right Side View AJA586 AJA58...
Страница 35: ...Unit Description 35 Figure 8 North American Power Receptacle Box AJA58...
Страница 38: ...Unit Description 38...
Страница 58: ...Electrical Maintenance 58...
Страница 66: ...Engine Maintenance 66 Figure 37 Fuel and Oil System Components...
Страница 84: ...Engine Maintenance 84...
Страница 96: ...Refrigeration Maintenance 96...
Страница 118: ...Hilliard Clutch Maintenance 118...
Страница 136: ...Cycle Diagrams 136...
Страница 140: ...Wiring and Schematic Diagrams Index 140...
Страница 141: ...141 Truck S Model SR 30 Schematic Diagram Page 1 of 2...
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Страница 143: ...143 Truck S Model 30 Units with P T Wiring Diagram Page 1 of 2...
Страница 144: ...144 Truck S Model 30 Units with P T Wiring Diagram Page 2 of 2...
Страница 145: ...145 Truck S Model 50 Schematic Diagram Page 1 of 2...
Страница 146: ...146 Truck S Model 50 Schematic Diagram Page 2 of 2...
Страница 147: ...147 Truck S Model 50 Units with P T Wiring Diagram Page 1 of 2...
Страница 148: ...148 Truck S Model 50 Units with P T Wiring Diagram Page 2 of 2...