Exmark Viking Hydro Operator's Manual page 36

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NEUTRAL SAFETY SWITCH ADJUSTMENT
b) Adjust Neutral Control Linkages
1. Raise the rear of the machine up onto jack stands high enough to raise
the drive wheels off of the ground.
2. Start the engine and move the throttle ahead to the full throttle position.
Place the neutral lock latches in the "forward" position as shown in Figure
7. Release the park brake and move the speed control lever to the "mid-
speed" position.
Note: The OPC levers must be held down and the park brake must be
disengaged whenever the speed control lever is moved out of neutral or
the engine will kill.
3. Squeeze the respective drive lever until an increased resistance is felt,
this is where neutral should be.
If the wheel turns while holding the drive lever in neutral, the neutral
control linkages need to be adjusted. If wheel stop then go to step 7.
HYDRO DRIVE LINKAGE ADJUSTMENT
4. Loosen the nut against the neutral control linkage yoke as shown in
Figure 18.
5. Adjust the neutral control linkage until the respective drive wheel stops
when the lever is pulled against the neutral spring (neutral position). Turn
the adjusting bolt approximately 1/4 turn clockwise if the wheel is turning
in reverse or turn the bolt approximately 1/4 turn counter-clockwise if the
wheel is turning forward. Release the drive lever to the forward drive
position and squeeze back into the neutral position. Check to see if the
wheel stops. If not, repeat the above adjustment procedure.
6. Make this adjustment on both sides.
7. After adjustments are made and the wheels stop when the drive levers
are in the neutral position, tighten the nuts against the yokes.
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FIGURE 17
FIGURE 18
- 31 -
(.79 cm)