Engine Maintenance
79
Belts
The unit uses only two belts to transfer power
from the engine and the electric motor to the
alternator, compressor, and evaporator fans.
Engine/Electric Motor Belt
The engine/electric motor belt is a 3V belt that
also drives the engine side evaporator fan. Use the
following procedure to adjust this belt.
1. Loosen the idler pulley mounting bolt.
2. Loosen the locknut on the idler pulley
adjustment bolt. This bolt is located directly
above the idler pulley on the idler pulley
mounting bracket.
3. Turn the idler pulley adjustment bolt to obtain
the proper belt tension (field reset—55 to 60
on TK gauge).
4. Tighten the locknut on the idler pulley
adjustment bolt and tighten the idler pulley
mounting bolt.
NOTE: Pulley and
belt alignment is very
critical for poly-v
belts. Feel pulleys
with hand to see that
belt is fully seated in
pulley.
Backside idler
is crowned to
help pull belt to
center of idler.
AGA651
1.
Engine Clutch Pulley
6.
Alternator Pulley
2.
Locate Belt Tension Gauge Here
7
Evaporator Fan Pulley (Flat) Crowned
3.
Evaporator Fan Pulley (Grooved)
8.
Compressor Pulley
4.
Idler Pulley
9
Electric Motor
5.
Locate Belt Tension Gauge Here
Figure 45: Front View Belt Arrangement
Summary of Contents for 919180
Page 4: ...4...
Page 10: ...Table of Contents 10...
Page 32: ...Unit Description 32 Unit Photographs Figure 3 Front View Figure 4 Back View AJA584 AJA585...
Page 33: ...Unit Description 33 Figure 5 Left Side View Figure 6 Right Side View AJA586 AJA58...
Page 35: ...Unit Description 35 Figure 8 North American Power Receptacle Box AJA58...
Page 38: ...Unit Description 38...
Page 58: ...Electrical Maintenance 58...
Page 66: ...Engine Maintenance 66 Figure 37 Fuel and Oil System Components...
Page 84: ...Engine Maintenance 84...
Page 96: ...Refrigeration Maintenance 96...
Page 118: ...Hilliard Clutch Maintenance 118...
Page 136: ...Cycle Diagrams 136...
Page 140: ...Wiring and Schematic Diagrams Index 140...
Page 141: ...141 Truck S Model SR 30 Schematic Diagram Page 1 of 2...
Page 142: ...142 Truck S Model SR 30 Schematic Diagram Page 2 of 2...
Page 143: ...143 Truck S Model 30 Units with P T Wiring Diagram Page 1 of 2...
Page 144: ...144 Truck S Model 30 Units with P T Wiring Diagram Page 2 of 2...
Page 145: ...145 Truck S Model 50 Schematic Diagram Page 1 of 2...
Page 146: ...146 Truck S Model 50 Schematic Diagram Page 2 of 2...
Page 147: ...147 Truck S Model 50 Units with P T Wiring Diagram Page 1 of 2...
Page 148: ...148 Truck S Model 50 Units with P T Wiring Diagram Page 2 of 2...