17
Hydro
Midsize
ADJUSTMENTS
TRACTION DRIVE HYDROSTAT ADJUSTMENTS:
The following adjustments must be done in order.
STEP 1 - Set Neutral
Neutral is set at the factory. If it should require
adjustment, raise the wheels off the ground by setting
the machine on jackstands or blocks. Disconnect
the traction control rod
A
and speed control rod
R
at each pump end. Disconnect pump arm spring
U
from bolt on engine deck. Loosen bolt
S
securing the
neutral plate eccentric shaft just enough to turn the
shaft. Start the engine and run at low speed. Turn
eccentric shaft
T
to raise or lower the point at which
the follower bearing is held in the center of the “
V
”
until the wheels stop turning. Tighten the eccentric
shaft bolt. Increase the throttle setting and check the
adjustment. Readjust if necessary. Shut the engine
off before proceeding to steps 2 and 3.
STEP 2 - Adjust Speed Control Rods
First adjust neutral, as outlined in Step 1. Set speed
control levers to neutral. Adjust swivels on lower
ends of speed control rods
R
so they just go into top
of the slots on the neutral plates.
NOTE
: If the speed control levers do not have
adequate tracking adjustment, the swivel on one of
the rods needs to be turned 1 turn.
STEP 3 - Adjust Traction Levers
Set neutral and adjust speed control rods as outlined
in Steps 1 and 2. Set traction locks in the neutral
position. Grasp traction rod
A
and pull down on it to
take out any slack. The pump control arm has some
back and forth play. Adjust the swivel to the center
of the control arm play. Connect the swivel to the
control arm. Reattach pump arm spring
U
to bolt on
engine deck.
NOTE:
More reverse speed may be gained by
adjusting the swivel to the rear of the control arm
play. A minimum of 1/16" play is required so the
traction controls can be put in neutral without the
machine backing up.
