Troy-Bilt RZT MUSTANG ZT50 - Manual (Page 30)

30 s
ectiOn
7— s
ervice
Tractor Creeping
Creeping is the slight forward or backward movement of the
tractor when the engine is running at high idle and the drive
control levers are opened out in the neutral position.
If after operating the tractor for some time, it begins to creep
while in the neutral position, adjust the transmission control rods
as follows.
Place the front of the tractor against an immovable object 1.
(e.g. wall, post, etc.).
Jack up the rear of the tractor so that both rear wheels are
2.
approximately one inch of the ground.
With the engine running at high idle and the drive control
3.
levers opened out in the neutral position, and the parking
brake disengaged, check the rear wheels for rotation.
If only one wheel is rotating, locate the transmission
4.
control rod beneath the frame at the front of the rear tire. If
both wheels rotate, locate both control rods. See Fig. 7-9.
Remove the flange lock nut and hex screw securing the 5.
transmission control rod to the transmission control arm.
Wheel rotation should stop. If it does not, contact your
Troy-Bilt Service Dealer.
If the rotation stops, adjust the control rod up or down as
6.
necessary to align with the hole in the transmission control
arm. Re-insert the hex nut into the hole in the control arm
and secure with the hex lock nut.
If necessary, repeat the previous two steps to adjust the
7.
other transmission control rod.
Lower the tractor and remove the jack.
8.
Tractor High Speed Tracking
If the tractor tracks to one side with both drive control levers fully
forward, adjust the control levers as follows:
Check for proper and balanced air pressure in both front 1.
and rear tires. Refill tires if necessary.
Perform the first three steps in the previous sub-section,
2.
Tractor Creeping, to verify that the tractor is not creeping.
If creeping, adjust following the instructions in that sub-
section.
Recheck the tracking after making any adjustments to the
3.
transmission control rods.
If uneven tracking persists, note which direction the tractor
4.
is tracking.
If the tractor tracks to the right, adjust the control a.
lever stop bolt on the left side.
If the tractor tracks to the left, adjust the control
b.
lever stop bolt on the right side.
Locate the applicable stop bolt on the left or right console. 5.
See Fig. 7-10.
Loosen the jam nut on the stop bolt, then turn the stop 6.
bolt counterclockwise to make it longer. Recheck the
tracking and fine tune the adjustment as necessary.
NOTE: If the stop bolt is adjusted too far, the tracking
problem will change sides. Make fine tuning adjustments
by shortening the same bolt.
Tighten the jam nut against the console and reposition the
7.
control lever as necessary to make the two control handles
even with each other.
RH Transmission
Control Rod
Hex Screw
Transmission
Control Arm
Flange
Lock Nut
Figure 7-9
Console
Stop Bolt
Jam Nut
Figure 7-10