© Apr 2022 6-12 TB18 Plus&20J Plus Operation Manual
PRE-OPERATION FUNCTION TEST
NOTICE
• The emergency power switch serves only for a
short time of use (with the platform fully lowered
from the maximum degree possible) when the
engine fails.
• When the emergency power is in use, do not
perform two or more functions simultaneously,
otherwise the auxiliary motor and pump will get
overloaded.
Depress the footswitch and move both the
emergency power switch and each function switch/
handle, the corresponding function shall operate
normally.
Rear position detection indicator light
When the boom rotates beyond the rear wheels, the
drive function should be disabled and the rear
position detection indicator light should flash at an
interval of 0.5s.
Reverse position travel drive switch
When the rear position detection indicator light is
flashing, the drive function should be disabled. Move
the reverse position travel drive switch, the light shall
be lit and the drive function should resume.
NOTICE
At this time, the machine will drive and steer in
opposite direction as indicated.
Hydraulic generator switch (if equipped)
Move the hydraulic generator switch, other functions
(including boom movement and travel) will be
disabled, and the engine will be switched to high
speed. After the engine runs at high speed stably for
5s, the solenoid valve of the hydraulic generator will
be energized and the hydraulic generator will start to
generate power.
Work light switch (if equipped)
Move the work light switch, the work light should be
on/off.
Buzzer
The buzzer should give a sound-light alarm at variable
frequency when the following situations occur:
• Main boom or jib boom down
• Machine overloaded
• Machine tilted
• Length sensor faulted
• Angle sensor faulted
• Other faults
System distress indicator light
The system distress indicator light will be lit under the
following conditions:
• Low fuel level
• Low engine oil pressure
• High engine water temperature
• CAN bus error
• Other faults
Chassis tilt indicator light
When the machine is tilted, the alarm should sound
and the chassis tilt indicator light should be on.
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