JLG 1500SJ Operator Manual - Manual (Page 70)

SECTION 4 - MACHINE OPERATION
4-4 – JLG Lift – 3121261
Stability
Machine stability is based on two (2) conditions which are called
FORWARD and BACKWARD stability. The machine’s position of
least FORWARD stability is shown in Figure 4-1., and its position
of least BACKWARD stability is shown in Figure 4-2.
TO AVOID FORWARD OR BACKWARD TIPPING, DO NOT OVERLOAD MACHINE OR OPER-
ATE THE MACHINE ON AN OUT-OF-LEVEL SURFACE.
4.3 CAPACITY SELECT
The Boom Control System allows the operator to select
operation in a 500 lb. (227 kg for ANSI markets and 230
kg for CE and Australia markets) capacity restriction
envelope or a 1000 lb. (454 kg for ANSI markets and 450
kg for CE and Australia markets) capacity restriction
envelope. The operator selects the desired capacity
restriction by positioning the Capacity Select switch on
the platform console. The Capacity Indicator shows the capacity
selected, and both capacity lights will flash and an alarm sound if the
platform is out of the selected capacity range.
NOTE: Operation in the 1000 lb. (454 kg for ANSI markets and 450 kg for
CE and Australia markets) envelope requires the jib to be fully
retracted.