SERVICE
Service - 62
ing brake engagement force without causing the
brake engagement tab to exceed its movement
specification, the parking brake band may require
further service. Contact an authorized Ventrac
dealer for assistance.
Neutral Adjustment
The power unit should come to a complete stop with
the neutral assist lever in the On position and the
parking brake disengaged. The power unit should not
attempt to move with the parking brake engaged. If
the power unit is attempting to move, there will be an
excessive amount of pump hydraulic noise, which indi-
cates the pump is not in the neutral position.
If the power unit moves or attempts to move in either
condition, the neutral position must be adjusted.
1. Remove any attachment from the power unit.
2. Park the power unit on a level surface.
3. Remove the pump cover from the power unit.
WARNING
Do not attempt to adjust the neutral position with
the power unit wheels on the ground. The power
unit could move forward or backward unexpectedly,
causing severe injury or death.
If the power unit is not adequately supported, the
unit could fall and trap or crush a person or append-
age, causing severe injury or death.
4. Lift the power unit so that all four wheels are a
minimum of 5 cm (2 inches) off the ground and
secure the power unit with jack stands or support-
ing blocks. Ensure the jack stands or supporting
blocks will not make contact with the wheels when
they rotate.
5.
Place a weight of 22.5 kg (50 pounds) on the seat
so the operator presence switch is activated.
6. Place the neutral assist lever in the On position to
engage the neutral assist spring.
7. Start the power unit and adjust the engine speed
to approximately 2,000 RPM.
8. Locate the
A
neutral adjust-
ment bolt (A) on
the lower right
side of the front
frame (right
column panel),
directly below
the neutral
assist lever.
9.
Loosen the neutral adjustment nut (A) slightly.
NOTE: it is easier to attain the desired setting if the
neutral adjustment nut is left snug and a rubber
mallet or a piece of wood and a hammer are used
to tap the nut in the desired direction. Do not strike
the nut directly with a metal hammer, as it is pos-
sible to dent or damage the nut.
10. Release the parking brake and observe the direc-
tion the tires are rotating. If the tires are rotating in
the forward direction, the neutral adjustment nut
should be moved up in the frame slot. If the tires
are rotating in the reverse direction, the neutral ad-
justment nut should be moved down in the frame
slot.
11. Once the proper neutral position is achieved and
the tires no longer rotate, tighten the neutral
adjustment nut to 42 Nm (31 ft-lbs). Make sure to
hold the bolt head to help prevent the bolt from
moving in the frame slot while the nut is tightened.
12. Verify that the neutral position is still correct after
tightening the nut by moving the SDLA lever in the
forward and reverse directions and allowing the
spring return to move the lever back to the neutral
position. Observe the tires to see if there is any
movement. Repeat steps 9-11 as needed until there
is no movement of the tires.
13. Engage the parking brake and listen for abnormal
amounts of pump hydraulic noise. Repeat steps
9-11 if necessary.
14.
Engage the parking brake and shut off the engine.
15. Remove the weight from the power unit seat.
16. Remove the power unit from the jack stands or
supporting blocks and return to the ground.
WARNING
An improperly adjusted neutral switch can result in
erratic engine cranking or unsafe power unit move-
ment. Check the neutral switch position after any
adjustment is made to the neutral position.
17. Adjustments made to the neutral position bolt
may affect the neutral switch setting. After chang
-
ing the neutral setting, it is possible that the
power unit will not start, due to the neutral switch
being out of adjustment. After any adjustments
are made to the neutral position, the neutral
switch should be checked and, if necessary, ad-
justed by an authorized Ventrac dealer.
https://www.tractormanualpdf.info/
