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MTD 550 Serie Manual Del Operador página 12

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Maintenance& Adjustments
Maintenance
i_ll
WARNING!
Disconnect
the spark plug wire and
ground
it against
the engine before performing
any
adjustment,
repairs or maintenance.
Engine
Refer to the Engine Operator's
Manual packed with your
edger for a detailed
description
of all engine-related
service
specifications.
Edger Blade
ill_ll
WARNING!
The edger blade is sharp. Wear leather
work gloves to protect
your hands when working
around
the edger blade.
Use two wrenches
(one wrench
to prevent
the hex bolt
head from spinning
and the other to remove the flange
nut) to remove
the edger blade. Refer to Fig. 6-1.
Lubrication
Wheels
Lubricate
the wheels and bearings
at least once a season with a
light 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.
PivotPoints
Lubricate
the pivot points on the blade control
bail, blade depth
control
lever, and if applicable,
the blade adjustment
lever, and
curb height
adjustment
lever with
light oil at least once a season.
Bearing Block
Lubricate
the bearing
block every 25 hours or at least once a
season. Simply apply oil at each end of the cover plate. See Fig.
6-2.
2_
3.
Edger
Figure 6=1
Remove and discard the edger blade but retain the flange
nut.
Install the replacement
edger blade and the flange
nut
removed
earlier. Use a torque wrench
to tighten
the flange
nut to between
37 foot-lbs,
and 50 foot-lbs.
NOTE: Make certain that the drive belt is seated correctly
on the blade spindle and that it is riding smoothly
on the
spindle
sheaves and is not pinched
between
them.
Repeat
the first three steps if the belt is pinched.
Figure 6=2

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