Hyundai HL955 Manual page 616

2) PILOT CUT OFF SWITCH
Safety button
ON
OFF
Lock
Unlock
760F3CD43
3) PARKING BRAKE SWITCH
Safety button
Release
ON
Lock
Unlock
760F3CD44
4)
EMERGENCY TEST SWITCH (option)
760F3CD52
5) DIFFERENTIAL LOCK SWITCH (option)
Manual
OFF
Auto
760F3CD30
(1) When the switch is pressed to OFF position, the hydraulic pilot line
will be cut off, so the work equipment will not operate.
(2) Press the ON position in order to unlock the hydraulic pilot line.
This switch can be set to ON or OFF position only when the
safety button is pulled to the unlock position.
(1) When the switch is pressed to ON position, the parking brake will
start to operate and the cluster warning lamp will comes ON.
(2) Press the release position in order to disengage the parking brake.
When operating the gear selector lever, be sure to release the
parking brake. If the machine is operated with the parking brake
engaged, the brake will overheat and may cause the brake sys-
tem to go out of order.
This switch can be set to ON or Release position only when the
safety button is pulled to the unlock position.
(1) The emergency steering system can be manually tested. Push the
switch in order to determine if the emergency steering and the
emergency steering lamp are functional.
(2) When the switch is pressed, the emergency steering pump motor
will run. The emergency steering lamp will light. If the emergency
steering lamp does not light, do not operate the machine.
(1) This switch is used to apply differential lock.
The differential lock gives equal power to both front wheels and is
used in conditions when traction is poor.
(2) Manual mode
Press the M of the switch for the manual mode of the differential lock
function. You press the switch, the differential lock will engage imme-
diately and differential lock pilot lamp lights ON. Manual mode is
temporarily engaged as long as the operator pushes the switch.
When the switch is released, differential lock function is disengaged
and the switch returns to OFF position.
(3) Auto mode
Press the A of the switch for auto mode of the differential lock func-
tion. If you press the switch, the axle differential lock will automatical-
ly engage when the differential function is used.
While the axle differential lock function is operating, the differen-
tial lock pilot lamp lights ON.
Refer to page 7-32.
7-65