OPERATION INSTRUCTIONS
TB20J Plus Operation Manual 43
© Feb. 2023
7.9 TRAVELING
• The machine cannot travel with the boom
positioned higher than the horizontal unless it
is on a solid and flat surface without exceeding
the maximum allowable climbing angle.
• It is forbidden to drive the machine on slopes,
steps or arched surfaces that exceed the maxi-
mum allowable climbing angle of the machine.
• Before traveling, confirm the traveling control
direction, and make sure the boom is above
the rear-wheel drive axle. If the boom is above
the front-wheel axle, the traveling and steering
control directions will be opposite to the indi-
cated directions.
• Extreme care must be taken when driving the
machine in reverse or with the platform raised.
• When driving the machine in potentially dan-
gerous situations, such as driving on slopes
or in reverse, limit the travel distance of the
handle to avoid dangerous situations due to
fast driving.
Note: The travel speed is in direct proportion to the trav-
el distance of the handle. The shorter the travel dis-
tance, the slower the speed.
Driving Forward and Reverse
1. Driving forward: Depress the foot switch and push
the travel/steer control handle forward, and the ma-
chine will travel forward.
2. Driving backward: Depress the foot switch and push
the travel/steer control handle backward, and the
machine will travel backward.
3. When the boom is above the rear-wheel drive axle,
the control direction of traveling and steering of the
platform controller will be indicated by the red and
yellow directional arrows on the chassis.
4. When the boom moves beyond the rear wheel, the
rear position indicator will flash, and the travel func-
tion will be turned off. To restore the travel function:
Press the rear position travel switch, the rear posi-
tion indicator will turn on, and the travel function will
resume. (At this time, the control direction of travel-
ing and steering of the machine will be opposite to
the red and yellow directional arrows on the
chassis)
Steering While Traveling
1. Steer left: Depress the foot switch, push the travel/
steer control handle forward and press the left
button on the top of the handle with your thumb, and
the machine will steer left.
2. Steer right: Depress the foot switch, push the travel/
steer control handle forward and press the right but-
ton on the top of the handle with your thumb, and
the machine will steer right.
Traveling on Slopes
It is forbidden to travel on slopes, steps or arched
surfaces that exceed the maximum allowable
climbing angle.
Before traveling on a slope, please find out and
determine:
1. the machine’s gradeability.
2. the slope grade. To determine the slope grade:
• Prepare an appropriate carpenter’s ruler, a
straight piece of wood and a tape measure.
• Measure the height (H) and length (L) of the
slope.
Fig 3
• Slope grade= H/L x 100%.
Do not drive the machine on the maximum
permissible slope for over 2min to prevent the
tires from running suspended.
High/Low Travel Speed Switching
• The machine, if tilted, must be driven at low
speed.
• Before traveling at high speed, be sure to ob-
serve whether the surrounding environment is
safe, to avoid colliding with obstructions or
persons and other hazards.
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