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Lubrication & Maintenance/500 Hour/12 Month
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RG19661,00003E6 -19-13FEB13-1/2
Checking Belt Tensioner Spring Tension and
Belt Wear (Automatic Tensioner)
Belt drive systems equipped with automatic (spring) belt
tensioners cannot be adjusted or repaired. The automatic
belt tensioner is designed to maintain proper belt tension
over the life of the belt. If tensioner spring tension is not
within specification, replace tensioner assembly.
Checking Belt Wear
The belt tensioner is designed to operate within the limit of
arm movement provided by the cast stops (A and B) when
correct belt length and geometry is used.
Visually inspect cast stops (A and B) on belt tensioner
assembly.
If the tensioner cast stop (A) on swing arm is hitting either
fixed cast stop (B), check mounting brackets (alternator,
belt tensioner, idler pulley, etc.) and the belt length.
Replace belt as needed (see REPLACING FAN AND
ALTERNATOR BELTS in Service As Required Section).
RG22080
—UN—03DEC12
Cast Stops - Tensioner Arm
A— Tensioner Cast Stops
B— Fixed Cast Stops
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Содержание M65C13
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