© Jan. 2024 52 0608ME All Maintenance Manual
FUNCTIONS AND CONTROLS
NOTICE
If the measured distance exceeds the specified
maximum braking distance, immediately lower the
platform to the stowed position, turn off and mark the
machine, and contact a qualified service technician
for inspection and repair.
10.4 POTHOLE PROTECTION
DEVICE
Function of pothole protection device: when the platform
rises to a certain height, the pothole protection device
will extend to a vertical position and move close to the
ground. When the machine is driven into a pothole the
plate on the pothole protection device will support on
the ground and prevent the machine from tipping over. It
is recommended to check the pothole protection device
every 3 months or after 250 hours of work.
Select a flat, level, unobstructed and solid surface to
perform the following tests:
1. Start the machine.
2. When raising the platform from the stowed position
to the operating position, the pothole protection de-
vices on the left and right sides of the chassis
should be fully extended to be perpendicular to the
ground.
3. Forcefullypush the pothole protection devicefrom
the outside inwards – it should not be flipped.
4. When the platform is lowered to the non-operating
position, the pothole protection device will retract.
5. Place a 50 mm (2 in) high wooden block under the
pothole protection device on the left side of the
chassis.
6. Raise the platform to the operating position, the
buzzer will sound, and the display will show the pot-
hole protection fault code “18”, the platform lift and
traveling/steering functions will be disabled, and on-
ly platform lowering will be permitted.
7. Lower the platform to the stowed position and re-
move the wooden block from under the pothole pro-
tection device on the left side of the chassis.
8. Perform the same test from step 5 on the pothole
protection device on the right side of the chassis.
NOTICE
If the pothole protection device is found to be not
working properly during the test, immediately lower
the platform to the stowed position, turn off and tag
the machine, and contact a qualified service
technician for inspection and repair.
10.5 TILT PROTECTION FUNCTION
The proper functioning of the tilt sensing system is es-
sential for the safe operation of the machine. It is recom-
mended to check the tilt sensing system every 3 months
or after 250 hours of operation.
Select a flat, level, unobstructed and solid surface to
perform the following tests:
1. Start the machine.
2. Drive the machine so the two wheels on the left (or
right) side travel on a slope with an angle greater
than 1.5°.
3. From the ground controls, lift the platform to operat-
ing position. Once the machine has reached the op-
erating position, the buzzer sounds, the display
shows the machine tilt fault code "LL", the lifting and
driving functions are restricted, and the platform can
only be lowered.
4. After lowering the platform to a non-operating posi-
tion, drive the machine off the slope.
5. Drive the machine so that the two front (or rear)
wheels are positioned on a slope with an angle
greater than 3°.
6. From the ground controls, lift the platform to operat-
ing position. Once the machine has reached the op-
erating position, the buzzer sounds, the display
shows the machine tilt fault code "LL", the lifting and
driving functions are restricted, and the platform can
only be lowered.
7. After lowering the platform to a non-operating posi-
tion, drive the machine off the slope.
NOTICE
If during the test it is found that the machine's
movements are not restricted as expected, lower the
platform to the stowed position, shut down the
machine, tag it accordingly, and contact qualified
maintenance technicians for inspection and repair.
10.6 OVERLOAD LIMIT FUNCTION
The rated load capacity of the platform is clearly speci-
fied in the Machine Specifications section of this man-
ual. Machine operation should be restricted if the
platform is overloaded.
The overload limit function is essential for the safe oper-
ation of the machine. Any malfunction may affect the
stability of the machine. It is recommended to check the
overload limit function every 3 months or after 250 hours
of operation.
Select a flat, level, unobstructed and solid surface to
perform the following tests with no load on the platform:
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