123940 6-7 REV C
Belts
Inspect belts frequently for wear and serviceability.
Replace a belt that shows signs of:
• severe cuts
• tears
• separation
• weather checking
• cracking
• burns caused by slipping.
Slight raveling of belt covering does not indicate failure,
trim ravelings with a sharp knife.
Inspect the belt pulley grooves and flanges for wear. A new
belt, or one in good condition, should never run against the
bottom of the groove. Replace the pulley when this is the
case, otherwise, the belt will lose power and slip excessively.
Never pry a belt to get it on a pulley as this will cut or
damage the fibers of the belt covering.
Keep oil and grease away from belts, and never use belt
dressings. Any of these will destroy the belt composition in a
very short time.
Hydraulic Pump Belt Adjustment
The transmission drive belt tension remains constant by
means of a tension idler and spring. The spring tension
should be such that the belt does not slip under normal
operating load conditions, assuming the belt is not
excessively worn or damaged. As the belt stretches and
wears in, adjustment may become necessary.
The proper belt tension is achieved when the tension
spring is stretched to a dimension of 7.5"–8.5" (191–216mm)
when measured from the inside of the hook to the inside of
the other hook. Figure 6-14
To increase belt tension, remove the spring hook from the
idler spring mount. Unbolt the idler spring mount from the
mower frame and move it to a set of holes in the frame that
allow for the spring to be extended to the proper extension.
Attach the mount and then re-attach the spring hook to it.
Figure 6-14
IMPORTANT: Do not over tension the spring to
compensate for a badly worn belt or pulley.
Inspect the belt every 100 hours and replace as needed.
Replace the belt every 400 hours or every two (2) years
whichever comes first.
A. Steering control lever
B.
Park brake slot
C.
Outside edge
D.
1/4" (6.35mm)
Figure 6-12
A. Jam nut
Figure 6-13
B
D
A
C
A
If the transmission belt fails, loss of control will
occur especially when operating on a slope. If you
lose steering control while operating the machine,
place the steering control levers in the park brake
position immediately. Inspect the machine and
involve your dealer to resolve the problem.
WARNING
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