Maintenance Instructions
S18
Cleaning
58
10. Install the cover with the word “DOWN” prop-
erly oriented to the bottom of the canister.
Twist the OptiAir™ cover to the right and put
into the “closed” position.
33
DOWN
DOWN
22
Mono Latch
Twist Lock™
Dust Ejection
Valve
Orient to Bottom
of Canister
Proper Orientation of Air Cleaner Cover
11. Check the air intake hose for cuts, nicks,
cracks, etc., and the hose clamps for tight-
ness.
Engine Air Cooling System
Cooling Air Intake Screen
To prevent engine overheating and possible engine
damage, clean grass clippings, chaff, and dirt from
the rotating engine cooling air intake screen
after
every 8 hours of operation.
In certain mowing
conditions (dry grass, leaves, tree “cotton”, etc.), it
may be nec essary to check and clean the screen
several times each day to prevent engine over-
heating. Also, visually check inside cylinder head
shroud and between cylinder head fins for material
packed in this area which would prevent cooling
airflow; remove shroud and clean as required.
Rotating Engine
Cooling Air
Intake Screen
Keep Rotating Engine Cooling
Air Intake Screen Clean
CAUTION
Operating the engine with a blocked air in-
take screen, dirty or plugged cooling fins,
and/or cooling shrouds removed will cause
engine damage from overheating.
