
Operator's Manual
Fifth Edition • Second Printing
Part No. T113597
S-100 • S-105 • S-120 • S-125
35
54 Slowly move the drive/steer control handle in the
direction indicated by the blue triangle on the
control panel OR press the thumb rocker switch
in the direction indicated by the blue triangle.
Result: The square-end wheels should turn in
the direction that the blue triangles point on the
drive chassis. The circle-end wheels should turn
in the direction that the yellow triangles point on
the drive chassis.
Test Drive and Braking
55 Press down the foot switch.
56 Slowly move the drive/steer control handle in the
direction indicated by the blue arrow on the
control panel until the machine begins to move,
then return the handle to the center position.
Result: The machine should move in the
direction that the blue arrow points on the drive
chassis, then come to an abrupt stop.
57 Slowly move the drive/steer control handle in the
direction indicated by the yellow arrow on the
control panel until the machine begins to move,
then return the handle to the center position.
Result: The machine should move in the
direction that the yellow arrow points on the
drive chassis, then come to an abrupt stop.
Note: The brakes must be able to hold the machine
on any slope it is able to climb.
Test the Drive Enable System
58 Press down the foot switch and lower the boom
to the stowed position.
59 Rotate the turntable until the boom moves past
one of the circle-end tires.
Result: The drive enable
indicator light should come
on while the boom is
anywhere in the range
shown.
60 Move the drive/steer control handle off center.
Result: No drive function should operate.
61 Push the drive enable button and slowly move
the drive/steer control handle off center.
Result: The drive function should operate.
Note: When the drive enable system is in use, the
machine may drive in the opposite direction that the
drive and steer control handle is moved.
Use the color-coded direction
arrows on the platform
controls and the drive chassis
to identify the direction of
travel.
If the drive/steer control
handle is not moved within
two seconds of pushing the
drive enable button, the drive
function will not operate.
Inspections
Blue
Yellow