Troy-Bilt 15009 - Manual (Page 39)

Pony (see Photo 5-9A)-clean (do not oil!) the
outer foam element every 10 hours; clean the
inner paper filter every 10 hours too, and replace
it every 50 hours.
Junior (see Photo 5-9B)-replace the single
paper filter element after every 25 hours of en­
gine operation. Do not clean it or oil it.
General Guidelines for servicing all model air
cleaner systems:
• Before removing the outer air cleaner
cover, always remove any dirt or grease in
the Immediate vicinity—do not get dirt or
grease or any foreign materials in the carbu­
retor!
• Inspect the foam pre-cleaner (if your model
comes with one) and the paper filter for signs
of excessive wear, tearing, or a loose fit.
• Wash the foam pre-cleaner only in a warm
water / liquid detergent mixture. Do not use
kerosene or mineral spirits as they could
damage the foam. Then rinse it in clear water
and squeeze until it is dry (don’t wring it out).
The Tecumseh 6HP foam pre-cleaner should
be oiled. The Briggs & Stratton 5HP foam
pre-cleaner
should not be oiled. (The Junior
Model’s Tecumseh engine does not have a
foam pre-cleaner.)
• Wipe the inside of the air cleaner cover and
the top of the air cleaner base plate with a
clean rag to remove dirt and grime. Don’t
knock dirt in the carburetor!
• Carefully install the foam pre-cleaner and
paper filter inner element, and the outer
cover with its hardware. The fit of these parts
must be secure and correct. All parts must be
reassembled as per the original assembly.
The performance of your engine is dependent
upon this.
NOTE—In very dusty or dirty conditions, in­
spect and clean the fiiter(s) more often.
SPARK PLUG MAINTENANCE
NOTE: Before you remove the spark plug,
brush or blow away debris from the top of
the cylinder head. This prevents debris from
accidentally falling into the spark plug hole.
Every fifty (50) hours of operation, remove the
spark plug and replace or clean it. If cleaning,
only scrape it—do not sandblast or wire brush it.
Reset the gap to .030". See engine literature.
IGNITION SYSTEM MAINTENANCE
Your tiller’s engine is equipped with electronic
ignition. It does not have either a condenser or
points. Therefore, you do not have to perform
any regular maintenance on this system other
than checking, cleaning, and adjusting (or re­
placing) the spark plug as mentioned previously.
AIR COOLING SYSTEM
MAINTENANCE
Since your tiller operates in such a dusty envi­
ronment, you should frequently check the en­
gine’s cooling system for any type of obstruction.
Look between the engine cooling fins and the
engine air shrouds, and under the blower hous­
ing for any trapped debris.
After the engine has cooled, use a screwdriver
or other tool to remove any trapped debris. Do
not remove the blower housing unless it is abso­
lutely necessary.
A
warning
Failure to keep your engine’s cooling sys­
tem clean will cause engine overheating
and will lead to engine damage.
BOLD TINES
Your tiller has bolo tines to more effectively
shred, chop, and bury the organic matter that
you are tilling back into your garden soil.
With use, these tines will become shorter, nar­
rower, and pointed. When badly worn, they won’t
be able to turn over as much earth as new tines.
Compare your tines with those in Photo 5-10 if
you should notice a loss of tilling depth or poor
power composting. If your tines have become
too worn, you should replace them.
NEW
TINE
MODERATE
WEAR
REPLACE
Photo 5-10: Checking Bolo Tines for wear.
37