Service Manual Instruction Manual

SECTION 3 - CHASSIS & TURNTABLE
3121171 – JLG Lift – 3-105
3.22 CHASSIS TILT INDICATOR SYSTEM
The Chassis Tilt Indicator System measures the turntable angle
in comparison to level ground. The tilt sensor (which is an inte-
gral part of the ground module) has three settings; 3.0° side
tilt, 5.0° omni directional tilt, and 8.0° omni directional tilt.
The 5.0° omni directional angle setting is used to warn the
operator by using the chassis tilt light in the platform display
panel. Additionally when used in conjunction with the Beyond
Transport - Drive Speed Cutback System (Section 4.3, Beyond
Transport - Drive Speed Cutback System), the tilt sensor will
cause an alarm to sound and automatically put all functions in
the creep speed mode. With the exception of the speed cut-
back, this is a warning system only indicating to the operator
the machine has reached the out of level limit. The machine
will continue to function. The operator is responsible to pre-
vent the machine from reaching an unstable position.
The 3.0° side tilt setting is used in combination with boom
position and when exceeded, imposes the same functionality
as the 5.0° omni directional setting. The side tilt setting is
ignored when the tower boom is less than 60° regardless of
main boom position and is proportionally increased in value
up to 5.0° as the main boom is lowered from high angles to
horizontal when the tower is above 60°.
The 8.0° angle is used only for the purpose of automatically
shifting the drive motors to the maximum displacement posi-
tion (slow speed). The control system responds to indicated
angle readings 0.5 degree smaller than the required angles to
account for calibration and sensor variation.
NOTE: For more detailed information concerning system adjust-
ment and operation, refer to Section 6 - JLG Control Sys-
tem.