Motion Control Linkage Adjustment - Exmark RADIUS Operation Manual

screw clockwise or counterclockwise to adjust the
travel of the lever.
Figure 72
1. Access hole on front
cover panel
2. Drive the machine and check the full forward
tracking.
3. Repeat steps 1 and 2 until desired tracking is
obtained.
Motion Control Linkage
Adjustment
Located on either side of the unit, below the seat are
the pump control linkages. Rotating the end nut with
a 1/2 inch deep socket wrench allows fine tuning
adjustments so that the machine does not move in
neutral. Any adjustments should be made for neutral
positioning only.
WARNING
Engine must be running and drive wheels must
be turning so adjustments can be performed.
Contact with moving parts or hot surfaces may
cause personal injury.
Keep fingers, hands, and clothing clear of
rotating components and hot surfaces.
1. Prior to starting the engine, push the deck lift
pedal and remove the height of cut pin. Lower
deck to the ground.
2. Tracking screw
2. Raise the rear of machine up and support with
jack stands (or equivalent support) just high
enough to allow drive wheels to turn freely.
3. Remove the electrical connection from the seat
safety switch, located under the bottom cushion
of the seat. The switch is a part of the seat
assembly.
4. Temporarily install a jumper wire across the
terminals in the connector of the main wiring
harness.
5. Start engine. Brake must be engaged and
motion control levers out to start engine.
Operator does not have to be in the seat. Run
engine at full throttle and release brake.
6. Run the unit at least 5 minutes with the drive
levers at full forward speed to bring hydraulic oil
up to operating temperature.
Note: The motion control lever needs to be in
neutral while making any necessary adjustments.
7. Bring the motion control levers into the neutral
position. The control plate tabs should touch the
return to neutral plates on the hydros. Adjust
pump control rod lengths by turning the nut in
the appropriate direction until the wheels slightly
creep in reverse (see Figure 73). Move the motion
control levers to the reverse position and while
applying slight pressure to the lever allow the
reverse indicator springs to bring the levers back
to neutral. The wheels must stop turning or
slightly creep in reverse.
The motion control cover may need to be
removed to gain access.
67
Maintenance