Gravely Pro-Stance 1934FX Owner's/Operator's Manual page 25

Checking and Adjusting Transmission
Tracking
CAUTION: Avoid injury! Engine exhaust fumes contain
carbon monoxide and can cause serious illness or death.
Move the machine to an outside area before running the
engine.
Do not run an engine in an enclosed area without
adequate ventilation.
• Connect a pipe extension to the engine exhaust pipe
to direct the exhaust fumes out of the area.
• Allow fresh outside air into the work area to clear the
exhaust fumes out.
NOTE: Check and adjust transmission tracking on a hard, level
surface.
Checking Transmission Tracking:
1. Check and adjust motion control linkages. See Checking and
Adjusting Motion Control Linkages in the SERVICE
TRANSMISSION section.
2. Start engine and run until it reaches normal operating
temperature.
3. Move machine to an open, level area for operation.
B
D
C
4. Drive machine forward, pushing both control levers (A) all the
way to speed control bar (B).
5. If machine does not drive in a straight line, an adjustment is
required.
Adjusting Transmission Tracking:
1. Adjust appropriate control rod swivel (C) located on each side
of machine.
• If machine tracks to the right, remove spring pin (D) and rotate
left control rod swivel one turn clockwise. Install spring pin (D).
• If machine tracks to the left, remove spring pin (D) and rotate
right control rod swivel one turn clockwise. Install spring pin
(D).
2. Check transmission tracking again and adjust as required until
machine drives in a straight line.
A
Adjusting Forward and Reverse Speeds
Adjusting Forward Speed:
1. Park machine safely. (See Parking Safely in the SAFETY
section.)
A
B
Picture Note: Arrow shows direction of speed control bar (A)
movement when decreasing forward speed.
2. Loosen lock lever (B) on speed control bar (A).
• To decrease forward speed, pull speed control bar (A) toward
the operator's station.
• To increase forward speed, push speed control bar (A) forward
(away from operator's station).
3. Tighten lock lever (B).
Adjusting Reverse Speed:
1. Park machine safely. (See Parking Safely in the SAFETY
section.)
2. Loosen jam nut (C) on cap screw (D) on each side of machine.
• To decrease reverse speed, turn cap screw (D)
counterclockwise.
• To increase reverse speed, turn cap screw (D) clockwise.
3. Tighten jam nut (C) on cap screw (D) on each side of machine.
Adjust Neutral Switch
Picture Note: Engine removed for picture clarity.
GB - 25
C
A
B