Change Engine Oil - Ariens Pro 21 Manual

DO NOT Sharpen to This Pattern
1
3
DISCARD If More
Than 1/2 in. (1.27 cm)
4
Sharpen to This Pattern
1. Square Corner
2. Cutting Edge
3. Air Lift
4. Air Lift Erosion
Figure 12
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 13).
4. Install mower blade on unit.
5. Tighten the bolts to a torque of 37.5 -
50 lbf-ft (51 – 68 N•m).
2
2
3
OT0792
Bolt
OA0013
CHECK DRIVE BELT
PROPELLED MODELS)
Check drive belt and replace if worn or
damaged. See DRIVE BELT
REPLACEMENT on page 20.
CHECK FASTENERS
Check all fasteners for proper tightness. Pay
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.
Refer to engine manual for instructions and
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.
GB - 18
Blade
Figure 13
(SELF-