SERVICE
Service - 59
brake engagement tab moves more than that, it
is possible for the brake to drag when travelling
at full forward speed, causing premature wear of
the brake.
7. If it is not possible to get the required 15 lbs (7
kg) of force to engage the brake lever 7 clicks
or less from the off position without causing the
brake engagement tab to move more than .03”
(.8 mm) with the SDLA lever in the full forward
position, the parking brake band may need
further service. Contact your 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
indicates 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. Engage the parking brake and shut off the engine.
4. Remove the key from the ignition switch.
5. Remove the pump cover from the power unit.
6.
WARNING
Do not attempt to adjust the neutral position with
the power unit wheels on the ground. The power
unit could accidentally move forward or backward,
causing severe injury or death.
If power unit is not adequately supported, the unit
could accidentally fall and trap or crush a person
or appendage, causing severe injury or death.
Lift the power unit so all four wheels are a
minimum of 2” (5 cm) off the ground and secure
the power unit with jack stands or supporting
blocks. Make sure the jack stands or support-
ing blocks will not make contact with the wheels
when they rotate.
7. Place a weight of 50 lbs (22.5 kg) on the seat so
the operator presence switch is activated.
8. Place the neutral assist lever in the On position
to engage the neutral assist spring.
9. Start the power unit and adjust the engine speed
to approximately 2,000 RPM.
10. Locate the neutral adjustment bolt (A) on the
lower right side of the front frame (right column
panel), directly below the neutral assist lever.
A
11. Loosen the acorn nut (A) slightly. NOTE: it is
easier to attain the desired setting if the neutral
adjustment bolt is left snug and a rubber mallet
or a piece of wood and a metal hammer are used
to tap the bolt in the desired direction. Do not
strike the acorn nut directly with a metal hammer,
as it is possible to dent or damage the nut.
12. Release the parking brake and observe which
direction the tires are moving. If the tires are
rotating in the forward direction, the neutral
adjustment bolt should be moved up in the
frame slot. If the tires are rotating in the reverse
direction, the neutral adjustment bolt should be
moved down in the frame slot.
13. Once the proper neutral position is found and
the tires do not rotate any longer, tighten the
neutral adjustment bolt to 31 ft-lbs (42 Nm).
Make sure to hold the bolt head to help prevent
the neutral adjustment bolt from moving in the
slot when it is tightened.
14. Verify that the neutral position is still correct after
tightening the bolt by moving the SDLA lever in
the forward and reverse directions and allow-
ing the spring return to move the lever back to
the neutral position. Observe the tires to see if
there is any movement. Repeat steps 11-13 as
needed until there is no movement of the tires.
15. Engage the parking brake and listen for abnor-
mal amounts of pump hydraulic noise. Repeat
steps 11-13, if necessary.
16.
WARNING
An improperly adjusted neutral switch can result in
erratic engine cranking or unsafe power unit move-
ment. Check the neutral switch position anytime an
adjustment is made to the neutral position.
Adjustments made to the neutral adjustment
bolt may affect the neutral switch setting. After
