Thermo King T-1080S, Maintenance Manual

Page: 120 / 191

Engine Maintenance
119
Electric Motor (Jackshaft)/
Compressor Belt
The electric motor (jackshaft)/compressor belt is a
polyvee stretch belt that also drives the
compressor side evaporator fan and the alternator.
The belt should not need adjustment unless it is
removed or replaced. Use the following procedure
to remove or replace this belt.
1. Loosen the alternator mounting bolt (see
Figure 209).
2. Loosen the alternator pivot bolt.
3. Loosen the alternator adjusting bolt as
necessary to remove or replace the belt (see
Figure 209).
4. Remove the belt and note how it fits on the
pulleys.
5. Install the belt. Make sure it fits on the pulleys
correctly.
6. Tighten the alternator adjusting bolt until the
top of the belt tension setting tool contacts the
top of the alternator adjusting bracket.
7. Tighten the alternator mounting bolt (see
Figure 209).
8. Tighten the alternator pivot bolt.
Water Pump Belt
The water pump pulley is a split type. Adjust the
tension by adding or removing shims between the
pulley sheaves. See “Specifications” for the
correct water pump belt tension setting.
1. Remove the bolts from the water pump pulley.
2. Remove the pulley sliding section and add or
remove shims to adjusting the belt tension.
3. Reinstall the belt on the pulley and replace the
sliding pulley section on the pulley.
4. Tighten the mounting belts on the water pump
pulley.
5. Check the belt tension and readjust if
necessary.
1. Alternator Adjusting Bolt
2. Belt Tension Setting Tool
3. Alternator Mounting Bolt
Figure 209: Alternator Adjusting Bracket -
Front View
ARA2030
3
2
1