Step 3 - Neutral Function Adjustment; Step 4 - Straight Tracking Adjustment - Walker B27i Operator's Manual

B27i

Step 3 - Neutral Function Adjustment

1. Securely block the tractor up so the drive tires
are off the ground.
2. Adjust the tracking adjustment nuts at the
front of both control rods so that 2 or 3
threads are visible, then loosen the jam nuts
on the ball joints at the back of the control
rods.
Control Rods
Tracking Adjustment Nuts
Transmission Control Rod and Arm Location
(Components Hidden for Clarity)
Ball Joint
Jam Nut
Control Rod
Tracking Adjustment Nut
(Adjusts Length of Control Rod)
Tracking Adjustment Components
Control Arm
FWD
REV
Transmission
Control Arm
Maintenance Instructions
WARNING
The following adjustments are made with
the engine running. Keep all body parts
and tools away from rotating and hot com-
ponents, and secure all loose clothing.
3. With the FSC in NEUTRAL-PARK, start the
engine. With the engine at normal operating
speed, check for movement of the drive
wheels.
4. Using a wrench on one tracking adjustment
nut, rotate the control rod counterclockwise
just until the wheel on that side begins to
move forward. Then, counting the turns
required, rotate the control rod clockwise just
until the wheel stops and then begins to
move in reverse. Rotate the control rod back
counterclockwise half the number of turns
required to make the wheel go from moving
forward to reverse. The transmission is now
centered in the neutral window. Tighten the
jam nut on the ball joint and repeat the same
procedure on the other transmission.
5. Turn off the engine, and then lower the drive
tires onto the ground.

Step 4 - Straight Tracking Adjustment

1. Sit in the seat, start the engine, set throttle at
full speed, and with the FSC in the NEU-
TRAL-PARK po sition check for movement of
either drive wheel (if either wheel moves
backward or forward, re fer to Step 3 - Neutral
Function Adjustment on page 65 and read-
just).
2. Check for straight ground tracking on a level
surface (with hands off the steering levers).
Set the FSC at several different speeds and
ob serve if the machine moves in a straight
line (use cement joint or other line on ground
for refer ence).
3. If tracking is not straight, shorten the control
rod on the faster side by turning the tracking
adjustment nut clockwise. If straight tracking
and neutral are both achieved, proceed to the
next step. If straight tracking and neutral
cannot both be achieved, turn the tracking
adjustment nut on the faster side counter-
clockwise until neutral is restored.
Adjustments
65