Ariens Pro-24 HWM SP Owners Manual - Page 32

Operator Presence, Engine/blade Control, Adjustment, Wheel Drive Control

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Mower Blade Drive Belt Replacement 1. Remove wheel drive lower belt. See Wheel Drive Lower Belt Replacement on page 30. 2. Loosen the four flanged lock nuts from the round head square neck bolts that secure the engine mounting plate to the mower frame. Do not remove hardware. See Figure 34. Mounting Bolts Flanged Nyloc Nut Belt Tensioning Bolt Blade Drive Belt Frame Engine Mounting Plate Figure 34 3. Hold the flanged nyloc nut (on the inside of the engine mounting plate) stationary with a wrench while turning the belt tensioning bolt counterclockwise. This will back the bolt away from the mower frame. See Figure 35. 4. Force the motor mount plate forward until belt is slack enough to remove from the mower blade shaft pulley. 5. Install new belt on engine pulley and mower spindle lower pulley. See Figure 33. 6. Hold the flanged nyloc nut (on the inside of the engine mounting plate) stationary with a wrench while turning the belt tensioning bolt clockwise. As the end of the bolt extends against the mower frame, the engine mount plate is forced back, increasing belt tension. 7. Tension belt to get a maximum of 80 lbs of tension. This correlates to approximately 0.250" (6.35mm) flex in belt. Use the pressure of one finger at the center of the belt span to check for proper flex. See Figures 32 and 33. 8. Tighten the four flanged lock nuts on the round head square neck bolts that secure the engine mounting plate to the mower frame. Engine Mounting Plate Mower Frame Figure 35 9. Install wheel drive lower belt. See Wheel Drive Lower Belt Replacement on page 30. OPERATOR PRESENCE (ENGINE/BLADE) CONTROL ADJUSTMENT The engine/blade control has no user serviceable adjustments. If the engine/blade control does not stop the engine or blade within 3 seconds of releasing the control lever, take the unit to an authorized Ariens dealer for repairs. WHEEL DRIVE CONTROL ADJUSTMENT The unit should stop immediately when the wheel drive control is released. The unit should not creep forward when the wheel drive control is disengaged with the engine running. If the unit creeps, increase the gap (clearance) between the drive rollers and tires when wheel drive is disengaged. If the unit does not accelerate smoothly or seems to slip under load, increase the traction and speed. See Wheel Drive Traction Adjustment on page 25. GB - 32

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GB - 32
Mower Blade Drive Belt Replacement
1. Remove wheel drive lower belt. See
Wheel Drive Lower Belt Replacement
on
page 30.
2. Loosen the four flanged lock nuts from
the round head square neck bolts that
secure the engine mounting plate to the
mower frame. Do not remove hardware.
See Figure 34.
3. Hold the flanged nyloc nut (on the inside
of the engine mounting plate) stationary
with a wrench while turning the belt
tensioning bolt counterclockwise. This
will back the bolt away from the mower
frame. See Figure 35.
4. Force the motor mount plate forward
until belt is slack enough to remove from
the mower blade shaft pulley.
5. Install new belt on engine pulley and
mower spindle lower pulley. See
Figure 33.
6. Hold the flanged nyloc nut (on the inside
of the engine mounting plate) stationary
with a wrench while turning the belt
tensioning bolt clockwise. As the end of
the bolt extends against the mower
frame, the engine mount plate is forced
back, increasing belt tension.
7. Tension belt to get a maximum of 80 lbs
of tension. This correlates to
approximately 0.250" (6.35mm) flex in
belt. Use the pressure of one finger at
the center of the belt span to check for
proper flex. See Figures 32 and 33.
8. Tighten the four flanged lock nuts on the
round head square neck bolts that
secure the engine mounting plate to the
mower frame.
9. Install wheel drive lower belt. See
Wheel
Drive Lower Belt Replacement
on
page 30.
OPERATOR PRESENCE
(ENGINE/BLADE) CONTROL
ADJUSTMENT
The engine/blade control has no user
serviceable adjustments. If the engine/blade
control does not stop the engine or blade
within 3 seconds of releasing the control
lever, take the unit to an authorized Ariens
dealer for repairs.
WHEEL DRIVE CONTROL
ADJUSTMENT
The unit should stop immediately when the
wheel drive control is released. The unit
should not creep forward when the wheel
drive control is disengaged with the engine
running.
If the unit creeps, increase the gap
(clearance) between the drive rollers and
tires when wheel drive is disengaged. If the
unit does not accelerate smoothly or seems
to slip under load, increase the traction and
speed. See
Wheel Drive Traction Adjustment
on page 25.
Figure 34
Engine Mounting Plate
Mounting Bolts
Frame
Blade Drive Belt
Figure 35
Engine
Mounting Plate
Belt
Tensioning Bolt
Flanged Nyloc Nut
Mower Frame