Ariens 911252 - Pro21 Specifications download pdf (Page 20)

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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 17).

4. Install mower blade on unit.

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 21.

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.

REPLACE OIL FILTER

(KAWASAKI ENGINES)

Replace oil filter every 100 hours of use or

every season.

1. Change engine oil.

2. Clean around filter.

3. Turn filter counterclockwise to remove

(Figure 18).

4. Apply a thin coat of oil onto seal of new

filter.

5. Install new filter and hand tighten

securely.

GENERAL LUBRICATION

NOTE: The mower transmission is lubricated

and sealed at the factory. It should need no

routine lubrication. If the transmission leaks

grease, bring the mower to your local Ariens

dealer for repair.

CHECK SPARK PLUG

Spark plug should be replaced every 100

hours of operation or each year.

NOTE: Loose spark plug wire terminals can

cause sparking. Replace terminal if

damaged.

CHECK ENGINE COOLING

To prevent overheating, air must circulate

freely around the cooling fins, cylinder head

and block.

Every 100 hours of operation or yearly (more

often if conditions require) remove blower

housing and clean cooling fins. See engine

manual for instructions.

Figure 17

OA0013

Bolt

Blade

WARNING: HOT SURFACES can

cause death or serious injury. DO

NOT TOUCH parts which are hot

from operation. ALWAYS allow

parts to cool.

Figure 18

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