MTD 145-660A User Manual

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WHEEL ADJUSTMENT
The caster (forward slant of the kingpin) and the cam¬
ber (tilt of the wheels out at the top) requires no ad¬
justment. Automotive steering principles have been
used to determine the caster and camber on the tractor.
The front wheels should toe-in Va inch. To adjust the
toe-in, loosen the hex jam nut, remove the elastic
locknut, drop the tie-rod end out of the hole in the
steering arm and screw the tie-rod end in or out to
make the adjustment. The distance "B" must be less
than "A" by Va inch. See figures 37 and 38.
To adjust the toe-in follow these steps:
1. Remove the elastic locknut and drop the tie rod
from the wheel bracket. See figure 36.
2. Loosen the hex jam nut on the tie rod. See figure 36.
3. Adjust the tie rod assembly for correct toe-in. Di¬
mension "B" should be approximately Va" less than
dimension "A". See figure 37.
A. ) To increase dimension "B", screw tie rod into
tie rod end.
B. ) To decrease dimension "B", unscrew tie rod
from tie rod end.
C.) Reassemble tie rod. Check Dimension. Readjust
if necessary.
CLEAN COOLING SYSTEM
Grass particles, chaff or dirt may clog the air-cooling
system, especially after prolonged service in cutting
dry grasses. Continued operation with a clogged cool¬
ing system may cause severe overheating and possible
engine damage. It is necessary to remove the blower
housing to completely clean this area. See figure 38.
FUEL SHUT-OFF VALVE AND FILTER
The fuel shut-off valve is located under the gasoline
tank and is opened by turning it counter-clockwise.
See figure 40.
The filter should be replaced once a year to insure
operating your engine with clean fuel. To replace the
filter, shut off the fuel valve and compress the legs of
the clamps on both sides of the filter and slide them
back. Replace the filter and replace the clamps.
FIGURE 39. SHUT-OFF VALVE
CARBURETOR ADJUSTMENTS
Minor carburetor adjustment may be required to com¬
pensate for differences in fuel, temperature, altitude
and load.
To Adjust Carburetor: Turn needle valve clockwise un¬
til it just closes. Caution: Valve may be damaged by
turning it in too far.
Now open needle valve 1 Va turns counter-clockwise.
Close jdle valve in same manner and open 114 turns.
This initial adjustment will permit the engine to be
started and warmed up prior to final adjustment.
FIGURE 37. TOE-IN
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MTD 145-660A Specifications

General

Brand	MTD
Model	145-660A
Category	Tractor
Language	English