Gravely Promaster 300 Owner's/Operator's Manual page 16

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ADJUSTMENTS
Adjustment of Transmission Neutral
The tractor should return to neutral after foot pressure
is removed from the direction control pedal. If the
tractor creeps, the neutral stop mechanism, located on
the top front of the transmission, needs adjusting
(Figure 4).
WARNING: The following adjustment requires
engine running and guards removed. Use
extreme caution when performing these
adjustments.
1. Remove the belt guard from the mower frame.
2. Jack or hoist one of the drive wheels off the
ground.
3. Loosen the two 5/16-18 bolts on the neutral stop
weldment (Figure 4).
4. Start the engine. Do not lock the parking brake.
5. Loosen the jam nut and turn adjusting bolt
clockwise for reverse creep or counterclockwise
for forward creep until the free drive wheel stops.
6. Retighten the jam nut.
7. Tighten the two 5/16-18 retaining bolts to 14 ft.
lbs. to secure the position of the neutral stop
weldment.
8. This adjustment will affect the direction control
pedal adjustment.
9. Replace belt guard.
Figure 4
2
4
3
1. Transmission Control
Arm
2. Drive Pin
3. Return Spring
4. Neutral Stop Weldment
1
6
7
5
5. 5/16" Bolt
6. Neutral Return Lever
7. Adjusting Bolt
Adjustment of Direction Control Pedal
When in full forward position, the direction control
pedal should clear the footboard by 1/8" or less, but not
touch the footboard. To adjust the pedal:
1. Locate the adjustment rod assembly underneath
the direction control pedal.
2. Loosen the jam nut which locks the rod end to the
adjusting rod (Figure 5).
3. If the pedal touches the footboard, turn the
adjusting rod to shorten the assembly. If the pedal
clearance was greater than 1/8", turn the rod to
lengthen the assembly.
4. Check the pedal clearance and readjust if
necessary.
5. Tighten the jam nut to the rod end.
1. Adjusting Rod
2. Jam Nut
3. Rod end
16
Figure 5
2
1
3

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