Ferris 1000ZK21/48, Operator'S Manual

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Troubleshooting, Adjustment & Service

Figure 28. Neutral Adjustment

(LH side shown with battery removed)
A. Adjustment Linkage Rod
B. Nuts

Figure 29. Neutral Spring Return Adjustment

A. Reverse Return Bolt
B. Reverse Return Spring
C. Spring Position Nut
D. Jam Nut

NEUTRAL ADJUSTMENT

If the tractor “creeps” while the ground speed control
levers are locked in NEUTRAL, than it may be neces-
sary to adjust the linkage rod.

NOTE: Perform this adjustment on a hard, level surface
such as a concrete floor.

1. Disengage the PTO, engage the parking brake and

turn off the engine.

2. There are three (3) nuts on the linkage rod. The first

two are to be used together to turn the rod and the
third (towards the front of the machine) is used to
lock the rod in place. Loosen the jam nut that locks
against the clevis (B, Figure 28) and turn the linkage
rod (A, Figure 28) to adjust. If the machine creeps
forward, turn the rod CLOCKWISE (while standing at
the rear of the machine, facing forward), if the
machine creeps backward, turn the rod COUNTER-
CLOCKWISE.

3. Lock the jam nut (B, Figure 28) against the clevis

when neutral is achieved.

NOTE: This adjustment should not be performed while
the machine is running. It may take several attempts to
achieved neutral, depending upon how much the
machine creeps.

NEUTRAL POSITION AND RETURN
SPRING ADJUSTMENT

To determine if it is necessary to adjust the neutral posi-
tion, perform the following steps.

1. Disengage the PTO, engage the parking brake and

turn off the engine.

2. Move the ground speed control levers in the operat-

ing position, pull levers rearward and release.

3. Move the ground speed control levers towards the

neutral position. If the levers do not align with the
notches in the neutral lock plate, it is necessary to
adjust the reverse return bolts (A, Figure 29).

Neutral Position Adjustment

1. Loosen the jam nut (D, Figure 29) locked against the

clevis.

2. Turn the reverse return bolt (A, Figure 29) clockwise

to adjust handle rearward, counter-clockwise to
adjust handle forward.

4. Pull lever rearward and release to check position

again. Adjust as necessary to align levers with
notches.

5. Once the lever alignment has been adjusted, lock

jam nut against the clevis.

Return Spring Adjustment

After adjusting the neutral position, lock the levers in the
neutral position and measure the reverse return spring
(B, Figure 29) length. This should be 2-3/8” (6,0cm)
long. If not, hold the reverse return bolt (A, Figure 29)
with a wrench while turning the spring position nut (C,
Figure 29) until the measurement is achieved.

A

B

A

B

C

D