operators_manual

4. Tensioners
5. Engine Dampener
6. A/C Compressor
7.
Alternator
NOTE
Always fit the same type of belts as
the ones replaced.
Engine Belt Checks
Maintenance check for engine drive belts.
Perform these maintenance procedures
according to the Preventative Maintenance
Schedule.
1. Inspect the engine drive belts for
the following conditions:
• Condition, signs of wear/
deterioration.
•
Alignment.
Fan Belt Tensioner
Maintenance checks for fan belt tensioner.
Perform these maintenance procedures
according to the Preventative Maintenance
Schedule.
1. Check and correct fan belt
tensioner.
• Mounting bolt torque.
•
Tensioner maintains proper belt
tension.
Engine Fan
General maintenance information and
precautions about the engine fan.
WARNING
Do not work on or near the fan with the
engine running. Anyone
near the en-
gine fan when it turns on could be in-
jured. If it is set at MANUAL, the fan
will turn on any time the ignition key
switch is turned to the ON position. In
AUTO, it could engage suddenly with-
out warning. Before turning on the igni-
tion or switching from AUTO to MAN-
UAL, be sure no workers are near the
fan. Failure to comply may result in
death or personal injury.
Your truck may be equipped with an On/Off
or Viscous Fan Drive. Follow these
guidelines to check your engine fan:
• Check the fan bearings for fan hub
bearing looseness, loss of lubricant
and any abnormal conditions. (For
example, fan belt misaligned or
excessive wear/damage.) Before
starting the engine and with the
engine of
f, look and feel for
looseness in the fan hub.
• With the engine idling and the hood
open, stand at the front of the
vehicle. Listen for any noises
coming from the fan hub. Bearings
that have lost lubricant, and are
dry, will typically emit a squeal or a
growl when the engine is at
operating temperature and the fan
clutch is engaged. If noise is
detected, have the fan bearings
inspected by an authorized
dealership.
ENGINE MAINTENANCE - Maintenance Procedures
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