SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA
49
Function tests 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
2
in the function
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.
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
5
, which controls
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.
2
5
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