Maintaining Your Lawn Mower; Servicing Your Mower - MTD 11A-549R730 Operator's Manual

21" hi-wheel mower
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SECTION 7: MAINTAINING YOUR LAWNMOWER
_
ARNING"
Always stop the engine and
disconnect and ground the spark plug wire
before performing any maintenance work or
adjustments on your lawn mower.
Put the mower back on its wheels on the ground. If
you had put plastic under the gas cap, make sure to
remove it now.
Lubrication
Cleaning Mower
The underside of the mower deck should be cleaned
after each use to prevent any build-up of grass
clippings, leaves, dirt, or other debris.
NOTE:
We do not recommend
the use of pressure
washers or garden hose to clean your unit. These may
cause
damage
to
electric
components,
spindles,
pulleys, bearings, or the engine. The use of water will
result in shortened life and reduce serviceability.
Disconnect spark plug wire. Drain the gasoline from
the lawn mower, or place a piece of plastic under
the gas cap.
Tip the mower so that it rests on the housing. Keep
the side with the air cleaner facing up. Hold the
mower firmly.
WARNING"
Never tip the mower more than
90 degrees in any directions and do not leave
the mower tipped for any length of time. Oil can
drain into the upper part of the engine causing
a starting problem.
Scrape and clean the underside of the deck with a
suitable tool. Do notspray with water.
BladeControlHandle
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.
Wheels
Lubricate the wheels and bearings, if so equipped,
at least once a season with light oil or engine oil.
Also, if the wheels are removed for any reason,
lubricate the surface of the axle bolt and the inner
surface of the wheel with light oil.
Rear DischargeDoor
Lubricate the torsion spring and the pivot point on
each end of the rear discharge door using a light oil.
This will prevent rusting of the discharge door.
EngineCare
Follow the accompanying engine manual for detailed
list and instructions.
WARNING:
Make sure to avoid muffler and
surrounding areas while the mower engine is
hot because temperature of these areas of the
engine may exceed 150 ° F.
SECTION 8: SERVICING THEMOWER
BladeCare
WARNING"
When removing the cutting
blade for sharpening or replacement, protect
your hands with a pair of heavy gloves or use a
heavy rag to hold the blade.
Periodically inspect the blade adapter for cracks,
especially if you strike a foreign object. Replace when
necessary.
Removingthe Blade
Disconnect spark plug wire from spark plug.
Turn mower on its side making sure that the air filter
and the carburetor are up.
Remove the bolt and the blade bell support which
hold the blade and the blade adapter to the engine
crankshaft. See Figure 12.
Remove the blade and the adapter from the
crankshaft.
Blade
Adapter
Blade Bell
Support
S
Bolt
Figure 12
12

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Series 540

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