Return-To-Neutral Adjustment; Parking Brake Adjustment - Ferris IS3100Z Series Manual

IS3100Z Series - 4 Wheel IS - 61" & 72" Mower Deck
Return-To-Neutral
Adjustment
To determine if it is necessary to adjust the neutral
return, 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
operating 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 neutral return ball joint (A, Figure 36).
Adjustment
1. Loosen the jam nut (B) locked against the ball joint.
2. Turn the neutral return rod (C) to adjust handle
position (see Figure 36).
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 ball joint.
Parking Brake
Adjustment
1. Disengage the PTO, stop the engine, block the front
wheels, remove the ignition key, and engage the
parking brake.
2. Locate the upper brake spring (A, Figure 37).
3. With the parking brake engaged, measure the
compressed spring length. The spring should be 2"
to 2-1/8" (5,0 - 5,4 cm) when compressed.
4. If the spring is not within this range, jack up the rear
of the machine and secure with jackstands. Remove
both drive tires.
5. Locate the lower brake spring and adjustment clevis
(A & B, Figure 38).
6. Release the parking brake and disconnect the clevis
(B) from the caliper lever (C). Turn the clevis to
compress or release the upper spring. Lock the nut
against the clevis and reinstall the clevis onto the
caliper lever.
CAUTION
Do not adjust the spring to be shorter than
2" (5,0 cm) when compressed. This may damage
the brake caliper.
C
Figure 36. Return-To-Neutral Adjustment
A. Ball Joint
B. Jam Nut
C. Neutral Return Rod
A
Figure 37. Parking Brake Adjustment
A. Upper Brake Spring
A
B
C
Figure 38. Parking Brake Adjustment
A. Lower Brake Spring
B. Adjustment Clevis
C. Caliper Lever
20
A
B
2" - 2-1/8"
(5,0 - 5,4cm)