Walker MT - Manual (Page 90)

Maintenance Instructions
ADJUSTMENTS
88
Straight Ground Travel Adjustment - Step 4
1. Sit in the seat, start the engine (operate at nor-
mal speed), and with the FSC in the NEUTRAL-
PARK position check for forward movement of
either drive wheel (if either wheel moves back-
ward, refer back to Neutral Function Adjust-
ment - Step 3 and readjust). Tighten the
steering lever adjustment nut on the side of
the mower with the wheel moving forward
until wheel movement stops.
2. Check for straight ground track on a level sur-
face (with hands off the steering levers). Set
the FSC at several different speeds and ob-
serve if the mower moves in a straight line (use
cement joint or other line on the ground for ref-
erence).
NOTE: The final tracking adjustment is made
with the mower moving, since the adjustment is
quite sensitive and is more easily “fine tuned”
when moving.
3. If travel is not straight, tighten the adjustment
nut that is on the same side of the mower as
the wheel that is moving too fast, e.g., the
mower tracks to the right, indicating the LH wheel
is moving too fast, tighten the LH adjustment nut.
Straight Ground Travel Adjustment
Forward Speed Control Friction Lock
The FSC friction lock is adjusted to hold the select-
ed forward speed when the steering levers are
moved and yet the friction is not too heavy to make
moving the control difficult (too much friction).
The procedure for checking and adjusting the FSC
friction lock is as follows:
Forward Speed Control Friction Lock
1. Place the FSC in the full FORWARD position
and pull both steering levers back; the FSC le-
ver should not move. If the FSC lever moves
back when the steering levers are pulled back,
the friction needs to be increased.
2. With the steering levers held back, move the
FSC lever back from the FORWARD position.
With a proper amount of friction adjusted, the
FSC lever should move back with a slight
amount of resistance (friction). If the FSC lever
movement is “stiff”, the friction needs to be de-
creased.
3. The FSC friction is increased or decreased by
tightening or loosening the friction adjust-
ment nut. Loosen or tighten the nut and check
the control function until conditions of both
steps 1 and 2 (above) are met.
End Wrench on
Adjustment Nut
Friction Washer
Friction
Adjustment Nut
FSC Actuator