Belts; Ac Generator Belt - Ingersoll-Rand Thermo King Precedent C-600 Maintenance Manual

Engine Maintenance

Belts

Belts should be regularly inspected during unit
pretrip inspections for wear, scuffing or cracking.
Belt tension should also be checked during
scheduled maintenance inspections. Belts that are
too loose will whip and belts that are too tight put
too much strain on the belt fibers and bearings.
Using Frequency Gauge P/N 204-1903 is the best
method to check belt tension. Other commercially
available tension gauges that measure the
frequency or the tension in pounds are also
acceptable.
NOTE: Do not attempt to remove or install belts
without loosening adjustments. Belts that are
installed by prying over pulleys will fail
prematurely due to internal cord damage.
CAUTION: Do not attempt to adjust belts
with the unit running.
CAUTION: Turn the unit off before
performing maintenance or repair
procedures. When the unit is turned on, it
can start at any time without warning.

AC Generator Belt

NOTE: The AC generator belt also drives the
alternator on Standard units. Units with
SmartPower or the Battery Charger option use a
shorter belt that goes from the engine pulley to
the idler to the AC generator pulley. The
procedure to adjust the belt is the same for units
with and without the alternator on the AC
generator belt.
AC Generator Belt Adjustment
See "Belt Tension" on page 16 in the
"Specifications" chapter for the correct AC
generator 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.
120
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2
1. Water Pump Belt (Check Tension Here)
2. Check AC Generator Belt Tension Here
3. AC Generator Belt without Alternator
4. AC Generator Belt with Alternator
5. Idler Mounting Bolt
6. Alternator for Standard Unit
Figure 201: Water Pump Belt and AC Generator
Belt (Shown Both With and Without Alternator)
1
1. Compressor Drive Belt ldler Adjuster
3. AC Generator Belt ldler Adjuster
Figure 202: Idler Adjuster Locations - Front View
ARA2097
ARA1973
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3
4
5
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