Service Manual

CHASSIS
5-57Fixed Deck Mid-Size Service Manual
5
The following inspections should be made when disas-
sembling the drive system, particularly if the reason for
service is inability to adjust belt tension or “loss of drive”.
Be sure to inspect all components; there may be more
than one item needing replacement.
• Pulley fl anges bent or damaged. They can pinch or
cut the belt.
• Idler arm bent - this will push the belt to one side and
can induce belt jumping in reverse.
• Idler pulley bearing worn out, resulting in incon-
sistent tension on the belt. Can cause slippage or
jumping.
Fig 588 PICT-6597
7. Check the spacing between the belt and the belt
guide. The distance between should be 1/16” to 1/8”
(.15cm - .31cm). Adjust if necessary (Fig. 588).
T-Bar - Gear Drive
Wheel Drive Belt and Pulley Replacement
Fig 589 PICT-5804
• A belt contacting the bottom of the pulley “V” indi-
cates worn belt or pulleys. The belt will slip no matter
how tight you adjust it.
• Belt glazed, shiny or burnt on the sides of the “V”
indicates slipping. Belt must be replaced and the
cause identifi ed and corrected.
• The sides of each pulley sheave should be straight
and fl at. If the sides of the “V” have “opened up”
or appear to bulge the pulley is worn and must be
replaced.
• If the belt is riding too deep in one or both pulley
grooves the center fl ange will begin to cut the belt
into 2 single belts. This indicates a badly worn belt or
pulley. The parts must be replaced.
1. Raise the machine so the rear tire is off the ground.
2. Remove the idler arm spring from the frame (Fig.
589).