Accessory Drive Belt Diagnosis Chart - Jeep 200 Cherokee Service Manual

7 - 10 COOLING SYSTEM
DIAGNOSIS AND TESTING (Continued)
CONDITION
RIB CHUNKING (One or more ribs
has separated from belt body)
RIB OR BELT WEAR
BELT SLIPS
LONGITUDAL BELT CRACKING
GROOVE JUMPING"
(Belt does not maintain correct
position on pulley)
BELT BROKEN
(Note: Identify and correct problem
before new belt is installed)

ACCESSORY DRIVE BELT DIAGNOSIS CHART

POSSIBLE CAUSES
1. Foreign objects imbedded in
pulley grooves.
2. Installation damage
1. Pulley misaligned
2. Abrasive environment
3. Rusted pulley(s)
4. Sharp or jagged pulley groove
tips
5. Belt rubber deteriorated
1. Belt slipping because of
insufficient tension
2. Belt or pulley exposed to
substance that has reduced friction
(belt dressing, oil, ethylene glycol)
3. Driven component bearing failure
(seizure)
4. Belt glazed or hardened from
heat and excessive slippage
1. Belt has mistracked from pulley
groove
2. Pulley groove tip has worn away
rubber to tensile member
1. Belt tension either too low or too
high
2. Pulley(s) not within design
tolerance
3. Foreign object(s) in grooves
4. Pulley misalignment
5. Belt cordline is broken
1. Excessive tension
2. Tensile member damaged during
belt installation
3. Severe misalignment
4. Bracket, pulley, or bearing failure
CORRECTION
1. Remove foreign objects from
pulley grooves. Replace belt.
2. Replace belt
1. Align pulley(s)
2. Clean pulley(s). Replace belt if
necessary
3. Clean rust from pulley(s)
4. Replace pulley. Inspect belt.
5. Replace belt
1. Adjust tension (2.5L)
2. Replace belt and clean pulleys
3. Replace faulty component or
bearing
4. Replace belt.
1. Replace belt
2. Replace belt
1. Adjust belt tension (2.5L)
2. Replace pulley(s)
3. Remove foreign objects from
grooves
4. Align component
5. Replace belt
1. Replace belt and adjust tension
to specification
2. Replace belt
3. Align pulley(s)
4. Replace defective component
and belt
XJ