GTZZ14EJ&16EJ Operation Manual
6-11
© Aug 2020
Figure 6-3
TESTING THE TILT
PROTECTION SYSTEM
Figure 6-4
1.
Turn the Ground/Platform select switch to the
ground control position.
2.
Pull out the emergency stop button on the ground
controller to the ON position.
3.
With the machine in non-operating position, flip the
level switch to exceed 5°in X (left-to-right)/Y (front-
to-back) direction.
4.
The tilt alarm sounds and the chassis tilt indicator
light flashes, no fuctions are restricted.
5.
With the machine in operating position, flip the level
switch to exceed 5°in X (left-to-right)/Y (front-to-
back) direction.
6.
The tilt alarm sounds and the chassis tilt indicator
light flashes, some functions are restricted, but the
boom retracting, lowering and turntable rotating are
allowed.
7.
With the machine in non-operating position, place
two wooden blocks under the two wheels on the
front or back side of the machine, and then drive the
machine onto the two wooden blocks. The wooden
block should measure 750mm L×250mm
W×166mm H.
8.
The tilt alarm sounds and the the chassis tilt
indicator light flashes, no functions are restricted.
9.
Drive the machine off the blocks, extend the
telescopic boom by slightly over 1.2m (3.9ft) or
raise/lower the foldable boom by slightly over 15°.
10.
place these two wooden blocks under the two
wheels on the front or back side of the machine,
and then drive the machine onto the two wooden
blocks.
11.
The tilt alarm sounds and the chassis tilt indicator
light flashes, some functions are restricted, but the
boom retracting, lowering and turntable rotating are
allowed.
12.
Retract and lower the boom, drive off the machine
in non-operating position and remove the wooden
blocks.
TESTING THE WEIGHING
SYSTEM
Before the test, move the boom fully up and down and
telescope in and out for at least twice to ensure the
pulley and track are adequately lubricated. With the
machine in 2 different positions (boom fully retracted
and positioned below the horizontal by 15°, and boom
lifted over the horizontal by 15°), add loads to the
platform. The test results are shown in the table below:
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