Oshkosh JLG 1500SJ, Руководство по обслуживанию и ремонту

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SECTION 4 - BOOM & PLATFORM
3121262 – JLG Lift – 4-7
Attempts to lift the main boom while this override is on will
result in a JIB LEVELING SYSTEM FAULT because during the
override automatic jib leveling is disabled. To adjust the jib
back to level go into override mode for the jib leveling. Turn it
on, escape out of the Service Modes menu, and go to DIAG-
NOSTICS/BOOM SENSORS menu. Use the RIGHT arrow
key go until you get to the following screen.
Adjust the jib level using the jib lift up and down function
switch until the jib level control angle reads zero. Cycle power
and operate the main boom to verify that jib level is working.
Jib Lift Functionality
The ground module controls the jib control valve using an out-
put on the ground. Simultaneous main lift and jib lift function
is not possible. The first function activated will have priority
over the other. Manual override of the platform leveling func-
tion will be allowed during all functions. If there is a failure in
which the jib functions cannot be controlled from the Jib Con-
trol Module, the ground module will control the jib control
valve and also override the jib lift up and down valve with out-
puts out of the ground module.
Jib Telescope Functionality
Jib Telescope out will only be allowed if the axles are
extended, and the capacity control is in the 500# mode and
the jib is locked inline with the main boom, or if the machine is
in the stowed state.
Jib Swing Functionality
The jib swing function is only used to stow the jib for trans-
port, and taking the jib out of the stowed position for use. This
function is only permitted when the main boom is in the trans-
port state.
Jib Swing Stow Sequence (Jib Pin Unlock)
If the machine is in the transport mode and the operator
attempts jib swing right, the control system attempts to
unlock the jib lock pin. If successful, (determined by the jib
lock pin proximity sensor) the control system continues to
command the jib lock pin unlock output on and control the jib
swing right function until the operator releases the jib swing
function, or the jib reaches the jib stowed position. Once the
operator releases the jib swing function the control system
shall command the jib lock pin unlock output to off. If the jib
lock pin does not unlock, the control system continues to try
to unlock the jib pin when the operator commands a jib swing
right function. The control system allows jib swing left to jog
the jib in the instance the pin is pinched by the jib structure.
Jib Lock Pin control can be manually overriden using the ana-
lyzer. The control system only allows this under certain condi-
tions and it should only be performed by an authorized JLG
service technician. When accessed, the jib lock pin can be
manually extended or retracted. To use this service mode the
technician must be in platform and in platform mode because
the footswitch is required to activate the jib lock pin.