Ariens 911183-LM21S Classic Specifications download pdf (Page 19)

3.Checkmowerbladebalance.

Slidemowerbladeonanunthreaded

bolt.Abalancedbladeshouldremainin

ahorizontalposition.Ifeitherendof

mowerblademovesdownward,sharpen

theheavyenduntilbladeisbalanced

(Figure12).

4.Installmowerbladeonunit.

5.Tightentheboltstoatorqueof37.5-

50Ibf-ft(51-68Nom).

Blade

Bolt

Figure12

CHECK DRIVE BELT

(Self-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.

GENERAL LUBRICATION

Swivel Wheels (911184)

See Figure 13.

Use Mix Hi-Temp Grease or equivalent on the

lube fittings. Order P/N: 00036800 - 3 pack of

3 oz. cartridges.

Lube Fitting

Figure 13

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

WARNING: HOT SURFACES can

cause death or serious injury. DO

NOT TOUCH parts which are hot

from operation. ALWAYS allow

parts to cool.

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.

CHECK MUFFLER

Check muffler for debris, cracks, wear, or

other damage.

CAUTION: Replace worn-out

,_ mufflers immediately. Continued

use could result in fire or

explosion.

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