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Engine Maintenance
121
AC Generator Belt Replacement
NOTE: Do not attempt to remove or install the
belts without loosening the adjustments. Belts
that are installed by prying over pulleys will fail
prematurely due to internal cord damage.
1. Loosen the idler mounting bolt.
2. Turn the idler adjuster as needed to loosen the
belt enough to allow you to remove the belt.
3. Install the new belt. Make sure it fits on the
pulleys correctly.
4. Turn the idler adjuster as needed to adjust the
belt to the correct belt tension setting.
5. Tighten the idler mounting bolt.
6. Check the belt tension setting and readjust if
necessary.
Water Pump Belt
The water pump pulley is a split type. Adjust the
tension by adding or removing shims between the
pulley sheaves. See “Belt Tension” on page 16 in
the “Specifications” chapter for the correct water
pump belt tension settings.
1. Remove the bolts from the water pump pulley.
2. Remove the pulley sliding section and add or
remove shims to adjust 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 setting and readjust if
necessary.
Compressor Drive Belt -
SmartPower Units Only
Compressor Drive Belt Adjustment
See “Belt Tension” on page 16 in the
“Specifications” chapter for the correct
compressor drive belt tension settings.
1. Loosen the idler mounting bolt.
2. Turn the idler adjuster as needed to adjust the
belt to the correct belt tension setting.
3. Tighten the idler mounting bolt.
4. Check the belt tension setting and readjust if
necessary.
Compressor Drive Belt Replacement
NOTE: Do not attempt to remove or install the
belts without loosening the adjustments. Belts
that are installed by prying over pulleys will fail
prematurely due to internal cord damage.
1. Loosen the idler mounting bolt.
2. Turn the idler adjuster as needed to loosen the
belt enough to allow you to remove the belt
from the electric motor pulley.
3. Support the compressor and unbolt the
compressor mounting flange from the engine
(leave the refrigeration lines connected).
4. Slide the compressor assembly away from the
engine.
1.
Compressor Mounting Flange
2.
Compressor Drive Belt
(Check Tension at Center of this Span)
3.
ldler Mounting Bolt
4.
Alternator Mounting Bolt
5.
Alternator Pivot Bolt
6.
Alternator Belt (Check Tension Here)
Figure 203: Compressor Drive and Alternator Belts
ARA2098
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