MTD Troy-Bilt 900 Series 21 Inch Self Propelled Lawn Mower Owners Manual

5
NOTE: This spark ignition system meets  all require-
ments of the Canadian Interference-Causing  Equipment
Regulations.
5.
Clean the engine regularly with a cloth or brush.
Keep the cooling system (blower housing area) clean
to permit proper air circulation which is essential  to
engine performance and life. Be certain  to remove all
grass, dirt and combustible debris  from muffler area.
Maintenance
Deck
Lubricate these
points before
reassembly.
The underside of the mower deck should be cleaned  after
each use to prevent a buildup of grass clippings, leaves,
dirt or other matter. If this debris is allowed to accumulate,
it will invite rust and corrosion, and may prevent proper
mulching.
The deck may be cleaned by tilting the mower and scrap-
ing clean with a suitable tool (make certain  the spark plug
wire is disconnected).
WARNING
Figure 11
Replacing Rear Flap
Always stop engine,
disconnect spark
plug, and ground
against engine before
cleaning, lubricating
or doing any kind of
maintenance on your
machine.
If unit is tipped for
easier access to
blade or belt, tip
mower as specified
in separate engine
manual. If it does not
specify turn mower
on its side making
sure that the air filter
and the carburetor
are up.
The rear flap is attached to the back of the mower deck.  If
the rear flap becomes damaged, replace it by cutting  off
the flat end of the wire rod which secures it to the deck
using a pair of side-cutters. Attach  the new rear flap using
the new rod provided with the rear flap, bending the ends
of the rod over to secure.
Lubrication
1.
Lubricate the pivot points on the blade control handle
at least once a season with light oil. The blade
control must operate freely in both directions. See
Figure 11.
2.  If your mower is equipped with ball bearing  wheels,
lubricate at least once a season with a light oil, all
other types require no lubrication. However, if the
wheels are removed for any reason, lubricate the
surface of the axle bolt and the inner surface  of the
wheel with light automotive oil.
Six speed shift cable adjustment
Periodic adjustment of the six speed shift cable  may
be required due to normal stretch and wear on the
cable. Adjustment is needed if all six speeds cannot  be
obtained.
3.
4.
5.
Lubricate the torsion spring and pivot point periodi-
The adjustable cable bracket is located on the left  side
of the mower, beside the engine. Start engine and  place
shift lever in the sixth speed position.  Stop engine and
disconnect spark plug wire and ground it against  engine.
cally with light oil to prevent rust. See Figure 11.
Thefactorytransmissionand does notis pre-lubricatedrequire lubrication.and sealed at the
1.
2.
Loosen the hex nut which secures the adjustable
cable bracket. See Figure 12.
Follow the accompanying engine manual for lubrica-
tion schedule and instruction.
Pull backward on the bracket (toward the rear of the
Engine
1.
mower).
Refer to the separate engine manual for engine
3.
Tighten the hex nut.
maintenance instructions.
2.  Maintain engine oil as instructed  in the separate
engine manual packed with your unit. Read and
follow instructions carefully.
3.
Under normal conditions service  air cleaner as in-
structed in the separate engine  manual packed with
your unit.  Clean every few hours under extremely
dusty conditions. Poor engine performance  and
flooding usually indicates that the air cleaner  should
be serviced.


Cutting grass in
sandy soil condition
causes abrasive wear
to the blade.
4.  The spark plug should be cleaned  and the gap
reset once a season. Spark plug replacement is
recommended at the start of each mowing season;
check engine manual for correct plug type  and gap
specifications.

Figure 12
10
Product Specification
CategoriesLawn Mower Manual, MTD Lawn Mower Manuals, Troy-Bilt Lawn Mower Manuals
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- 44 pages
Document TypeOwner's Manual
LanguageEnglish
Product BrandMTD, Lawn Mower
Product TypeWalk Behind Mower
Document File TypePDF
Publishermtdproducts.com
Wikipedia's PageMTD Products
CopyrightAttribution Non-commercial
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