Forward Speed Control Friction Lock; Transmission Control Setting; Neutral-Park; Straight Ground Tracking - Walker B27i Operator's Manual

B27i

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 66.

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 65.

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 65.
Maintenance Instructions
Checking and Servicing
59