Exmark FMD524 Lawn Mower User Manual


 
- 34 -
Recheck the left drive wheel rotation to see if further adjustment is
necessary - be sure the speed control lever is in the neutral position.
If inconsistent neutral occurs, check to be sure both springs are
properly tightened on the speed control lever under the console -
especially the rear pivot spring.
Repeat above adjustments if necessary.
3. Place the speed control lever in neutral. Adjust the right side linkage by
turning the quick track knob counter-clockwise until the tire begins to
rotate forward. Begin to retighten the knob clockwise about 1/4 turn at
a time, stopping to move the speed control forward and back to neutral.
Recheck the drive wheel rotation to see if further adjustment is
necessary.
4. The spring that keeps tension on the knob should normally not need
adjustment. However, if adjustment is needed, adjust to where length
of spring is about 1” (2.5 cm) between washers. Adjust spring length by
turning nut at front of spring.
d) Drive Lever Linkage Adjustment
1. With rear of machine still on jack stands and engine running at full
throttle, move the speed control lever to the midway position. Move the
respective drive lever upward until it reaches the neutral position and
engage neutral lock latches. See Figure 14. If the tire rotates in either
direction, the length of the drive lever linkage will need to be adjusted.
2. For Standard Pistol Grip Handles: Adjust the linkage length by
releasing the drive lever and removing clevis pin and rotating the
linkage in the lower swivel. Lengthen the linkage if the tire is turning in
reverse and shorten the linkage if the tire is creeping forward. Rotate
the linkage several turns if the tire is rotating fairly fast. But as the
adjustment gets closer, adjust the linkage in 1/2 turn increments.
Release and re-engage neutral lock latch checking that the tire stops.
Continue these process until the tire is at a dead stop.
Replace the hairpin back into each clevis pin.
For ECS Handles: Adjust the linkage length by loosening the jam nuts
at both ends of the linkage and rotating the linkage in the ball joints.
Lengthen the linkage if the tire is turning in reverse and shorten the
linkage if the tire is creeping forward. Tighten the jam nuts at both ends.
Release and re-engage the neutral lock checking that the tire stops.
Continue this process until the tire is at a dead stop.
STANDARD PISTOL GRIP HANDLES ECS HANDLES
FIGURE 14
DRIVE LEVER AND LATCH IN NEUTRAL POSITION
3. Make this adjustment for both sides.