Engine Drive Belt
REMOVAL -
Insert a 3/8 inch square ratchet drive
(fig. 7.31) into the belt tensioner (fig. 7.32, item 1) and
lift upward to remove the belt (fig. 7.32, item 2).
INSPECTION -
Visually inspect the belt daily.
Check the belt for intersecting cracks (fig. 7.33).
Transverse (across the belt width) cracks are
acceptable. Longitudinal (direction of belt length)
cracks that intersect with transverse cracks are not
acceptable. Replace the belt if it is frayed or has
pieces of material missing.
A/C Compressor Belt
To tighten air conditioner compressor belt, loosen
the two pivot bolts (fig. 7.34, item 1) and the two slide
bolts (fig. 7.34, item 2). Using a suitable prying tool,
adjust tension on belt to desired tautness. While
maintaining tension, re-tighten all four bolts. Inspect
belt ever 250 hours.
73
VII.
SERVICE AND MAINTENANCE
BELTS
FIG 7.33
FIG 7.34
2
1
FIG 7.32
1
2
FIG 7.31
Summary of Contents for STS12
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