Oshkosh Corporation JLG 1200SJP, Operation And Safety Manual

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SECTION 3 - MACHINE CONTROLS AND INDICATORS
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Platform Station
(See Figure 3-6., Platform Control Console
TO AVOID SERIOUS INJURY, DO NOT OPERATE MACHINE IF ANY CONTROL LEVERS OR
TOGGLE SWITCHES CONTROLLING PLATFORM MOVEMENT DO NOT RETURN TO THE
OFF OR NEUTRAL POSITION WHEN RELEASED.
NOTE:
When boom is positioned above transport position or telescoped
out and any of the following switches, DRIVE SPEED/TORQUE
SELECT or FUNCTION SPEED, are positioned to HIGH, high func
-
tion speeds are automatically cut out and the machine contin -
ues to operate at a lower speed.
DO NOT OPERATE MACHINE IF DRIVE SPEED /TORQUE SELECT OR FUNCTION SPEED
SWITCHES OPERATE WHEN BOOM IS MORE THAN 15° ABOVE HORIZONTAL.
1.
Drive Speed/Torque Select
The machine has a three position switch -
The forward position gives maximum drive
speed. The back position gives maximum
torque for rough terrain and climbing grades.
The center position allows the machine to be driven as qui -
etly as possible.
2.
Steer Select
The action of the steering system is opera -
tor selectable. The center switch position
gives conventional front wheel steering
with the rear wheels unaffected. This is for
normal driving at maximum speeds. The
forward position is for “crab” steering. When in this mode
both front and rear axles steer in the same direction, which
allows the chassis to move sideways as it goes forward. This
can be used for positioning the machine in aisle ways or
close to buildings. The back switch position is for “coordi
-
nated” steering. In this mode the front and rear axles steer in
the opposite directions to produce the tightest turning cir
-
cle for maneuvering in confined areas.
ONLY USE THE PLATFORM LEVELING OVERRIDE FUNCTION FOR SLIGHT LEVELING OF
THE PLATFORM. INCORRECT USE COULD CAUSE THE LOAD/OCCUPANTS TO SHIFT OR
FALL. FAILURE TO DO SO COULD RESULT IN DEATH OR SERIOUS INJURY.