© Feb. 2023 138 TB20J Plus Maintenance Manual
FUNCTIONS AND CONTROLS
rated load capacity of the platform.
NOTICE
If the machine operation cannot be accurately
restricted during the test, please immediately lower
the platform to the stowed position, turn off and mark
the machine, and contact a qualified service
technician for inspection and repair.
The test results should be as follows if the overload limit
system works normally:
Table 10-2
Mode Test results
KG mode
With platform capacity restricted:
When the load on the platform does not exceed 454kg (1000lb), the platform can be elevated
to the highest position.
When the load on the platform exceeds 454kg (1000lb), the buzzer will sound, the overload
indicator light will flash, the display will indicate overload, and all functions will be disabled.
After the excess load is removed, all functions will be resumed.
With platform capacity unrestricted:
When the load on the platform does not exceed 300kg (661lb), the platform can be elevated to
the highest position.
When the load on the platform exceeds 300kg (661lb), the buzzer will sound, the overload
indicator light will flash, the display will indicate overload, and all functions will be disabled.
After the excess load is removed, all functions will be resumed.
Non-KG mode
With platform capacity restricted:
When the load on the platform does not exceed 454kg (1000lb), the platform can be elevated
to the highest position.
When the load on the platform exceeds 454kg (1000lb), the buzzer will sound, the overload
indicator light will flash, the display will indicate overload, and certain functions will be disabled.
But the boom can be retracted, and lowered after fully retracted, and the turntable can rotate
slowly. After the excess load is removed, all functions will be resumed.
With platform capacity unrestricted:
When the load on the platform does not exceed 300kg (661lb), the platform can be elevated to
the highest position.
When the load on the platform exceeds 300kg (661lb), the buzzer will sound, the overload
indicator light will flash, the display will indicate overload, and certain functions will be disabled.
But the boom can be retracted, and lowered after fully retracted, and the turntable can rotate
slowly. After the excess load is removed, all functions will be resumed.