Ariens 911094 - Pro 21SCH Manual Do Utilizador
GB - 16
2. Torque bolt to 37.5 - 50 lbf-ft
(51-68 N•m) (bolt should fully compress
lock washer).
lock washer).
3. Connect spark plug wire.
Sharpen the Mower Blades
1. Remove mower blade from unit.
Discard mower blade if:
•
More than 1/2 in. (1.27 cm) of metal is
removed.
removed.
•
Air lifts become eroded.
•
Blade is bent or broken.
2. Sharpen mower blade by removing an
equal amount of material from each end
of mower blade. DO NOT change angle
of cutting edge or round the corner of the
mower blade.
of mower blade. DO NOT change angle
of cutting edge or round the corner of the
mower blade.
3. Check mower blade balance.
Slide mower blade on an unthreaded
bolt. A balanced blade should remain in
a horizontal position. If either end of
mower blade moves downward, sharpen
the heavy end until blade is balanced
(Figure 9).
bolt. A balanced blade should remain in
a horizontal position. If either end of
mower blade moves downward, sharpen
the heavy end until blade is balanced
(Figure 9).
4. Install mower blade on unit.
5. Tighten the bolts to a torque of 37.5 -
5. Tighten the bolts to a torque of 37.5 -
50 lbf-ft (51-68 N•m).
CHECK DRIVE BELT
(self-
propelled models)
Check drive belt and replace if worn or
damaged. See Drive Belt Replacement (self-
propelled models) on page 19.
damaged. See Drive Belt Replacement (self-
propelled models) on page 19.
CHECK FASTENERS
Check all fasteners for proper tightness. Pay
special attention to blade hardware and all
guards, shields and safety devices.
special attention to blade hardware and all
guards, shields and safety devices.
CHECK AIR CLEANER
See engine manual for specific information.
CHANGE ENGINE OIL
IMPORTANT: Change engine crankcase oil
after first five (5) hours of operation. Then
change oil after every 25 hours of operation.
after first five (5) hours of operation. Then
change oil after every 25 hours of operation.
Refer to engine manual for instructions and
proper oil type.
proper oil type.
IMPORTANT: Proper oil level must be
maintained at all times or engine damage will
result. DO NOT overfill. Be sure engine is
level when adding oil.
maintained at all times or engine damage will
result. DO NOT overfill. Be sure engine is
level when adding oil.
GENERAL LUBRICATION
NOTE: LM21SCH has lube fittings on drive
mount for use in commercial applications.
Lubricate as needed.
mount for use in commercial applications.
Lubricate as needed.
CAUTION: DO NOT sharpen
mower blades while on unit. An
imbalanced mower blade will
cause excessive vibration and
eventual damage to unit. Check
mower blade balance before
reinstalling blades.
NEVER weld or straighten bent
blades.
mower blades while on unit. An
imbalanced mower blade will
cause excessive vibration and
eventual damage to unit. Check
mower blade balance before
reinstalling blades.
NEVER weld or straighten bent
blades.
Figure 8
1. Square Corner
2. Cutting Edge
3. Air Lift
4. Air Lift Erosion
2. Cutting Edge
3. Air Lift
4. Air Lift Erosion
Sharpen to This Pattern
DO NOT Sharpen to This Pattern
DISCARD if More Than
1/2 in. (1.27 cm)
1/2 in. (1.27 cm)
OT0792
Figure 9
OA0013
Bolt
Blade