MTD 111-070A - Manual (Page 12)

FIGURE 16.
LUBRICATION
IMPORTANT
Always stop engine and disconnect
spark plug wire before cleaning,
lubricating or doing any kind of
work on lawn mower.
Wheels—The wheels 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 oil. A 4 oz.
plastic bottle of light oil lubricant is available.
Order part number 737-0170. Engine oil may also
be used.
Protective Shield—The pivot points on the protec­
tive shield should be lubricated periodically with
light oil to prevent any rust or binding.
MAINTENANCE
CUTTING BLADE
A. Removal for Sharpening or Replacement
t WARNING
j
Be sure to disconnect and ground
the spark plug wire before working
on the cutting blade to prevent
accidental engine starting.
Remove the large bolt and lock washer which
holds the blade and adapter to the engine
crankshaft. See figure 17.
Remove the blade and adapter from the
crankshaft. Be careful not to lose the key on
the crankshaft.
3. If the blade or blade adapter needs replacing,
remove the two small bolts, lock washers and
nuts which hold the blade to the adapter.
1
.
2 .
Chute Deflector—The torsion spring and pivot
point should be lubricated periodically with light
oil to prevent any rust or binding. Deflector must
work freely.
Engine—Follow engine manual for lubrication in­
structions.
Throttle—Periodically lubricate throttle control
lever and throttle wire assembly with a few drops
of light oil (SAE No. 10 or 20) for ease of operation.
FIGURE 17.
B. Sharpening
Remove the cutting blade by following the direc­
tions of the preceding section.
When sharpening the blade, follow the original
angle of grind as a guide. It is extremely important
that each cutting edge receives an equal amount
of grinding to prevent an unbalanced blade. An un­
balanced blade will cause excessive vibration
when rotating at high speeds and may cause
damage to the mower.
12