Section 8: Lubrication - MTD Yard-Man 993 Series Operator's Manual

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SHIFT ROD ADJUSTMENT
CARBURETOR
ADJUSTMENT
To adjust the shift rod, remove the cotter pin which
A
secures the shift rod to the shift lever. For proper
,_.
adjustment, refer to FINAL ADJUSTMENTS
on page
6.
SKID SHOE ADJUSTMENT
The space between the shave plate and the ground
can be adjusted.
Refer to Skid Shoe Adjustment
(See Figure 8) on page 6.
WARNING:
If
any
adjustments
are
made to the engine while the engine is
running (e.g. carburetor),
keep clear of
all moving parts. Be careful of heated
surfaces and mufflers.
Minor carburetor adjustment may be required to
compensate
for differences in fuel, temperature,
altitude and load.
Refer to the separate engine manual
packed with
your unit for carburetor adjustment information.
NOTE:
Failure
to
comply
with
suggested
maintenance and lubrication specifications on pages
10 and 11 will void warranty.
SECTION 8: LUBRICATION
WHEELS
Oil or spray lubricant into bearings at wheels at least
once a season.
Remove wheels,
clean and coat
axles with a multi-purpose
automotive
grease. See
Figure 15.
CHAINS
AND SHIFTING
MECHANISM
Remove
lower
cover.
Oil all chains,
sprockets,
bearings,
the hexagonal
shaft,
round shaft, and
shifting
mechanism
at least once a season.
Use
engine oil or a spray lubricant. Avoid getting oil on
rubber friction wheel and aluminum drive plate.
CHUTE
DIRECTIONAL
CONTROL
WORM
The worm gear on the chute directional crank should
be greased with multi-purpose automotive grease.
IMPELLER
PULLEY
The impeller
pulley
should
be lubricated
once a
season. Refer to exploded view of parts, found in the
back of the book, for correct location.
AUGER
SHAFT
Remove auger bolts on auger shaft, see Figure 16.
Oil or spray lubricant inside shaft.
ENGINE
Refer to
engine
manual
for
engine
lubrication
instructions.
HEX SHAFT
Lubricate the hex shaft with a good all-weather multi-
purpose light grease at least once a season or after
every
25 hours
of operation
(available
from an
authorized
service dealer or an automotive
store.)
See Figure 15.
If
for
any
reason
your
transmission
was
disassembled
and the auger cable disconnected,
make sure when reassembling
to pass the cable
above
the hex shaft
before
reconnecting
to the
auger actuator bracket.
WARNING:
When
following
instruc-
tions
in separate
engine
manual
for
draining oil, be sure to protect frame to
avoid
oil dripping
onto
transmission
parts.
Tri(
Cables
Auger
Actuator
Bracket
Hex Nut
and
Shift Arm
Drive
Actuator
Bracket
Shaft
Friction
Wheel
Figure 15 Viewed from the underside of snow
thrower
10

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