MTD Troy-Bilt 561 21 Inch Self Propelled Electric Rotary Lawn Mower Owners Manual

5
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.
Deck
Maintenance
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
Rear Flap Replacement
Figure 5-1
The rear flap is attached to the back of the mower deck,
and is designed to minimize the possibility that objects
will be thrown from the rear of the mower toward the
operator. If the rear flap becomes damaged, replace as
follows.
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.
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 5-1.
1.  To remove the old rear flap, lift rear door, and press
flap in on either side to remove from hole.
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.
2. Remove flap from opposite hole and replace with new
flap following these steps in reverse order.
Blade Care
Periodically inspect the blade adapter for cracks,
especially if you strike a foreign object. Replace when
necessary. Follow the steps below for blade service:
3.
Lubricate the torsion spring and pivot point periodi-
cally with light oil to prevent rust. See Figure 5-1.
4.  The transmission is pre-lubricated and sealed at the
factory and does not require lubrication.
1.
Remove the bolt and the blade bell support which
hold the blade and the blade adapter to the engine
crankshaft. See Figure 5-2.
5.
Follow the accompanying engine manual for lubrica-
tion schedule and instruction.
Engine
1.
2.
3.
Remove blade and adapter from the crankshaft.
Refer to the separate engine manual for engine
The blade may be resharpened by removing it and
either grinding or filing the cutting edge keeping as
close to the original bevel as possible. Do not attempt
to sharpen the blade while it is still on the mower.
It is extremely important that each cutting edge
receives an equal amount of grinding to prevent an
unbalanced blade.
maintenance instructions.
2.
Maintain engine oil as instructed in the separate
engine manual packed with your unit. Read and
follow instructions carefully.
4.
3.
4.
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.
NOTE: Improper blade balance will result in excessive
vibration causing eventual damage to the engine and
mower. Be sure to carefully balance blade after sharpen-
ing. Possible damage resulting from blade unbalance
condition is not the responsibility of the manufacturer.
NOTE:balance. Always remove blade from the adapter for testing
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.
NOTE: This spark ignition system meets all require-
ments of the Canadian Interference-Causing Equipment
Regulations.
Cutting grass in
sandy soil condition
causes abrasive wear
to the blade.
10
Product Specification
CategoriesLawn Mower Manual, MTD Lawn Mower Manuals, Troy-Bilt Lawn Mower Manuals
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- 36 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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