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Section 4 – Inspections Before Operation
4.3-3 Do a test of the start/function
enable/emergency power switch
and all the boom and platform
functions
WARNING
Look for overhead obstructions or other possible
hazards around the MEWP when you raise the
platform. Do not lower the platform unless the area
below is clear of personnel and obstructions. If
you do not obey, there is a risk of death or serious
injury.
1. Do not hold the start/function enable/
emergency power switch
enable position. Try to operate each boom and
platform switch.
Result: All the boom and platform functions
▪
do not operate.
2. Hold the start/function enable/emergency
power switch in the function enable position and
operate each boom and platform function.
Result: The engine speed increases from idle
▪
to intermediate. All the boom and platform
functions operate as selected.
213205AAA
50
3
4
TM
5
1
in the function
1
2
4.3-4 Do a test of the platform self-
leveling
1. Lower the boom to the stowed position.
2. Adjust the platform to a level position with the
platform-leveling switch
the tilt up or tilt down function of the platform.
3. Fully raise the main boom.
Result: The platform stays level at all times
▪
and the lift speed decreases before the boom
is at full height.
4. Fully lower the main boom.
Result: The platform stays level at all times.
▪
4.3-5 Do a test of the platform capacity
zone indicator lights
1. Push the emergency-stop button.
2. Pull the emergency-stop button.
Result: The capacity zone border light
▪
illuminates for 1 second and then goes off.
The high-capacity zone indicator light
illuminates.
3. Extend the boom until the high-capacity zone
indicator light goes off.
Result: The low-capacity zone indicator light
▪
illuminates.
5
4. While the boom is extended, make sure there
are no visible cracks in the welds or structure,
and there are no signs of deformation.
5. Fully retract and lower the boom.
Function tests
, which controls
2
3
4
SJ82 T, SJ86 T
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