LGMG AS0607E, Maintenance Manual

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Maintenance Manual of Elevating Work Platform
23
brush.
1.11 Steps of checklist C
C-1
Test of platform overload system
1) This step shall be made once per 50h or per
season, whichever is shorter. Or the check
and re calibrate shall be made immediately
when the overload failure appears.
2) The frequent test of platform overload
mechanism is essential to the safe operation
of machine. The continuous wrong operation
of platform can cause the reaction failure to
overload information of the system. The
stability of machine will be affected and even
the equipment may be tipped over.
3) The platform overload system is used for
preventing the operation of machine in case
of overload. Such system is composed of two
electric elements, an overload pressure
switch and an angle sensor.
4) The angle sensor in the scissor arm 1is used
for measuring the inclination angle of the
scissor and further determining the platform
height.
①
Switch the key switch to the ground
controller, and lift the platform for a given
height above the ground. The lifting
height of every model is given in the
following table.
Model Height (m)
SS0407E 1.8
AS0607E 2.5
AS0812E 3.2
AS1012E 3.73
AS1212E
4
AS1413E
②
Lift the safety prop, move it to the center
of the scissor sleeve center and rotate it
upward until it is vertical.
③
Lower the platform height until the safety
prop completely contacts the shaft
sleeve.
△
! Warning: crush hazard
Be sure to put your hand on correct position of the
safety prop when lowering the platform.
④
Open the limit switch base cover on the
chassis.
⑤
Remove the limit switch cover.
⑥
Mark and remove two lines of the upper
limit switch.
⑦
Make the short connection between the two
removed lines.
⑧
Switch the key switch to the two ground
controller and draw out the red emergency
stop buttons from the ground and platform
controller.
⑨
Slightly raise the platform and recover the
safety prop to the installation position.