General Lubrication; Check Spark Plug - Ariens 911271 Owner's And Operator's Manual

Pro21 walk behind lawn mower
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REPLACE OIL FILTER
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 14).
4. Apply a thin coat of oil onto seal of new
filter.
5. Install new filter and hand tighten
securely.
Figure 14

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
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.
REPLACE ENGINE/BLADE
CONTROL CABLE
Every 500 hours of operation, have your
authorized Ariens dealer replace the
Engine/Blade Control Cable on your mower.
GB - 18

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