MAINTENANCE
SECTION 5
CMD-3967823 / 90-865237030 OCTOBER 2003 Page 79
2. Inspect serpentine belt for proper tension and for the following:
• Excessive wear
• Cracks
NOTE: Minor, transverse cracks (across the belt width) may be acceptable. Longitudinal
cracks (in direction of belt length) that join transverse cracks are NOT acceptable.
• Fraying
• Glazed surfaces
• Proper tension
75130
a
b
c
a-Transverse crack
b-Longitudinal crack
c-Fraying
3. Check the operation of the automatic tensioner and associated components. Move
tensioner pulley in direction of arrow (position a suitable tool on pulley fastener and
rotate). Release and allow to glide back slowly. Tensioner must return to it’s initial
position.
b
a
77139
Typical
a-Serpentine belt
b-Automatic tensioner
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