JLG E300 Service Manual - Manual (Page 150)

SECTION 6 - JLG CONTROL SYSTEM
6-26 – JLG Lift – 3120772
CHECKING INPUTS Indicates that the inputs test is beginning.
Every input is checked to ensure that it is in its “normal” position; function switches should be open,
cutout switches should be closed, joysticks should be in neutral.
In platform mode, inputs are tested in the order: UL U, UL D, UL JOY., SWING L, SWING R,
SWING JOY., LEVEL U, LEVEL D, PUMP POT., ROTATE L, ROTATE R, LL U, LL D, JIB U, JIB D,
TELE I, TELE O, DRIVE FWD, DRIVE REV, DRIVE JOY., STEER L, STEER R,
POSITRAC, DRIVE C/O, ELEV. C/O, FUNC. C/O, BRAKE PRES
In ground mode, inputs are tested in the order: ROTATE L, ROTATE R, LEVEL U. LEVEL D, JIB U.
JIB D, TELE I, TELE O, UL U, UL D, LL U, LL D, SWING L, SWING R, ELEV. C/O,
FUNC. C/O, BRAKE PRES, MAN. BRAKE
NOTE: switches which are not in use (due to the settings of machine digits) are not checked. NOTE: the pump pot is
checked only for a wire-off condition; it can be at any demand from creep to
maximum.
Problems which can be reported include:
CHECK switch name
The named switch is not in its “normal” position.
Check switch & wiring.
CHECK switch name JOY.
The named joystick appears to be faulty.
Check joystick.
INPUTS DONE Indicates that the inputs test is complete (with or without faults).
TESTING LAMPS Indicates that the lamps test is beginning.
Each lamp is energized in turn; a prompt asks for confirmation that the lamp is lit - ENTER must be
pressed to continue the test.
Lamps are tested in the order: ENABLE, FAULT, TILT, CREEP, POSlTRAC, WATER.
NOTE: lamps which are not in use (due to the settings of machine digits) are not checked.
NOTE: lamps are only tested in platform mode.
Problems which can be reported include:
lamp name S/C
A short-circuit condition appeared while the named lamp was being tested, presumably
because it is short-circuit.
LAMP TEST DONE Indicates that the lamps test is complete.
TESTING ALARMS Indicates that the alarms test is beginning.
Each alarm is energized in turn; a prompt asks for confirmation that the alarm is sounding - ENTER
must be pressed to continue the test.
Alarms are tested in the order: P.ALARM, G.ALARM.
NOTE: the platform alarm is only tested in platform mode.
NOTE: the ground alarm is not tested if GROUND ALARM = NO.
Problems which can be reported include:
alarm name S/C
A short-circuit condition appeared while the named alarm was being tested, presumably
because it is short-circuit.
ALARM TEST DONE Indicates that the alarms test is complete .
Table 6-8. System Test Messages