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BELT REPLACEMENT
Wheel Drive Lower Belt Replacement
See Figure 32.
The wheel drive lower belt connects the blade
shaft top pulley to a variable speed (VS)
pulley.
1. Remove both the upper and lower
guards. See WHEEL DRIVE
ADJUSTMENTS Drive Belt Guard on
page 23.
NOTE: The adjustment bracket bolt holes are
threaded.
2. Loosen the lock nut and bolt attaching
each adjustment plate to the adjustment
bracket. Do not remove hardware.
IMPORTANT: To avoid bending adjustment
bolts, or have them slip off adjustment
brackets, it may be necessary to pull back on
wheel drive assembly as lower belt tension is
adjusted.
NOTE: The adjustment bracket bolt holes are
threaded.
3. Loosen the flanged nut on each
adjustment hex bolt away from the
adjustment bracket.
4. Turn both adjustment bolts out evenly
until belt becomes loose enough to slide
off blade shaft pulley.
NOTE: If the wheel drive lower belt is
installed backwards it will drive the variable
speed (VS) pulley in reverse. The drive rollers
shaft will then also be driven in reverse. If
driven in reverse, the drive roller detents will
be heard to click and wheel drive action will
not occur.
5. When installing belt, twist belt 90º so left
side strand goes to lower side of VS
pulley. Also see Figure 29.
6. Turn both adjustment bolts in/out evenly
to get 1-1/4" – 1-1/2" (3.175 – 3.810cm)
flex in belt. Use the pressure of one
finger at the center of the belt span to
check for proper flex.
NOTE: Adjust bolt lengths as necessary to
tension belt while maintaining even drive
roller to wheel gap at both wheels.
7. While holding adjustment bolt stationary
with a wrench, tighten flanged nut
against adjustment bracket.
Adjustment Plate
Lock Nut
Blade Drive Belt
8. Tighten flanged lock nut and bolt
attaching each adjustment plate to the
adjustment bracket.
9. Install both the upper and lower guards.
See WHEEL DRIVE ADJUSTMENTS
Drive Belt Guard on page 23.
GB - 30
Adjustment Bracket
Flanged
Nut
Wheel
Adjustment
Drive
Bracket
Lower Belt
Figure 32
Hex
Bolt
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