B23
Maintenance Instructions
Checking and Servicing
59
Forward Speed Control Friction Lock
The FSC friction lock is designed to
hold the
selected forward travel speed
when the steering
levers are moved and yet the friction is not too
heavy to make
moving the FSC control
difficult
(too much friction). The procedure for checking the
FSC friction lock is as follows:
1. With the engine off, place the FSC in the full
FORWARD
position and pull both steering
levers back; the FSC lever should not move.
If the FSC lever moves back when the steer-
ing 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 decreased.
If the FSC friction lock needs to be adjusted, refer
to
Adjustments for Transmission Control Step 6
- Forward Speed Control Friction Adjustment on
page 67.
Transmission Control Setting
On a
yearly
interval or when an out-of-adjustment
condition is observed, check the transmission
control for proper function as follows:
Neutral-Park
With the mower parked on level ground, start and
run the engine, first at idle and then normal operat-
ing speeds. With the FSC in the
NEUTRAL-PARK
position, there should be no movement of either
drive tire. If the tire(s) are “creeping” forward or
reverse, refer to
Adjustments for Transmission
Control Step 3 - Neutral Function Adjustment on
page 66
.
Straight Ground Tracking
Check for straight ground track by driving on a
smooth, level surface with hands off the steering
levers. Set the FSC at different speeds and
observe if the mower moves in a straight line (use
a cement joint or other line on the ground for refer-
ence). If the machine is drifting to the right or left,
refer to
Adjustments for Transmission Control Step
4 - Straight Tracking Adjustment on page 66
.
