Maintenance - Scotts 907254 - LM21SW Operating And Parts Manual

Ariens Dealers will provide any service, parts or
adjustments which may be required to keep your unit
operating at peak efficiency. Should engine service be
required, contact an Ariens dealer or an authorized
engine manufacturer's service center.
MAINTENANCE SCHEDULE
The chart shows the recommended maintenance
schedule that should be performed on a regular basis.
More frequent service may be required due to working
conditions (heavy loads, high ambient temperatures,
dusty conditions, or airborne debris).
See Engine Manual for further maintenance and
troubleshooting information.
MAINTENANCE SCHEDULE
Service Performed
Check Air Cleaner
Check Engine Oil
Check Mower Blade
Check Drive Belt
Check Engine/Blade
Control
Check Grass Bag
Check Drive Control
General Lubrication
Check Fasteners
Check Spark Plug
Check Engine Cooling
Check Muffler
After first 2 Hours of operation
*
WARNING: ROTATING PARTS can cut off
body parts. Keep hands and feet away. Loose
clothing, long hair or scarves can get caught
in rotating parts and cause death or serious
injury.

MAINTENANCE

Daily 25 50
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•
*
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•
•
•
•
•
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WARNING: Stop engine, wait for moving
parts to stop, and remove wire from spark
plug (keep wire away from plug to prevent
accidental starting) before attempting any
lubrication or maintenance procedures.
CAUTION: DO NOT touch engine parts which
are hot from operation. Allow parts to cool
before servicing.
CHECK AIR CLEANER (Briggs & Stratton
Engine)
See engine manual for specific information.
CHECK ENGINE OIL
100
IMPORTANT: Change engine crankcase oil after first
two (2) hours of operation. Thereafter, change oil every
twenty five hours of operation (more often in dusty, dirty
conditions). Refer to Engine Manual for oil type and
grade and detailed instructions.
Engine Oil Check and Change
The engine crankcase oil should be checked daily or
every five (5) hours of operation. Oil level MUST be
maintained in safe operating range on dipstick at all
times or engine damage will result.
IMPORTANT: DO NOT overfill. Be sure engine is level
when adding oil.
See Engine Manual for detailed instructions.
CHECK MOWER BLADE
See figures 10 and 11.
Regularly check mower blades for wear and that lock
•
washer is fully compressed by cap screw (requires
25-30 ft. lbs. of torque on cap screw).
•
When blade needs sharpening:
1. Block blade to prevent rotation.
•
2. Remove cap screw, lock washer and blade from
shaft.
3. Sharpen both ends of blade at original angle
(25°), removing equal amounts of material from
each end to maintain proper blade balance. New
blades are balanced to within 1.3 in. oz. at
factory. DO NOT grind around corner at tip of
blade. If cutting edge of blade cannot be
sharpened in a straight line to within 1/8 of an
inch of its end, replace blade with Ariens
replacement blade only.
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