© Feb. 2023 26 TB20J Plus Operation Manual
PRE-OPERATION INSPECTION
4) Activate the engine start switch, and the engine
should start smoothly without abnormal noise
(This test is required if the machine is equipped
with an engine).
5) Activate any action switch without activating the
enable switch, and the corresponding action
cannot operate.
6) Activate the enable switch and any action switch
at the same time, and the corresponding action
shall operate normally.
7) With the main power source turned off, activate
the emergency power switch and any boom ac-
tion switch at the same time, and the corre-
sponding action shall operate normally. After
that, deactivate the emergency power and re-
start the engine.
2. Turn the ground/platform control selector switch on
the ground controller to the platform control position,
pull out the emergency stop button on the ground
controller and platform controller, and perform the
following tests from the platform controller:
1) Make sure that when the emergency stop button
on the platform controller is pressed, the plat-
form controller shall be powered off and all func-
tions on the platform controller cannot work.
2) Make sure that the horn sounds properly when
the horn button is pressed.
3) Activate the engine start switch, and the engine
should start smoothly without abnormal noise
(This test is required if the machine is equipped
with an engine).
4) Activate any action switch/handle without de-
pressing the foot switch, and the corresponding
action cannot operate.
5) Depressing the foot switch and activate any ac-
tion switch/handle at the same time, and the cor-
responding action shall operate normally. Move
the switch/handle to the neutral position after
one action is performed, and the corresponding
action should be stopped reliably and safely.
Note: When the travel function handle is re-
leased, the brake must be able to hold the ma-
chine on any slope within the maximum climbing
angle reliably without sliding.
6) Move any action switch/handle 7s after the foot
switch is depressed, and the corresponding ac-
tion cannot operate and the buzzer will sound.
7) When the boom rotates beyond the rear wheels,
the rear position indicator light should flash and
the travel function should be turned off. After
pressing the rear position travel drive switch, the
rear position indicator light shall be solid on, and
the travel function shall be reactivated.
At this time, the direction of travel and
steering of the machine shall be opposite
to the indicated direction. Please operate
the machine with caution!
8) With the machine in non-operating position,
push upward the high/low drive speed selector
switch, and the machine will start to run at high
speed; push the travel control handle to full drive
position, and the machine will travel at the maxi-
mum travel speed.
9) With the machine in operating position, push up-
ward the high/low drive speed selector switch,
and the machine will start to run at low speed;
push the travel control handle to full drive posi-
tion, and the machine will travel at low speed.
10) When the machine travels to a slope with the
grade greater than or equal to the maximum al-
lowable tilt angle of the machine and smaller
than or equal to the maximum allowable climbing
angle of the machine, the chassis tilt indicator
icon will be on, and the tilt alarm will be
triggered.
11) Without activating the main power source, de-
press the foot switch, and activate the emer-
gency power button and any boom action switch
at the same time, and the corresponding action
shall operate normally. After that, deactivate the
emergency power.
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