Boom - JLG EC450AJ Operation & Safety Manual

4.9

BOOM

A red tilt warning light is located on the platform control indicator panel which
lights when the chassis is on an excessive slope. Do not swing or raise boom above
horizontal when indicator is lit.
Do not depend on the tilt warning light as a level indicator for the chassis. Tilt
alarm indicates chassis is on an excessive slope (5 degrees or greater). Chassis must
be positioned within the allowable operating slope before swinging or raising
boom above horizontal or driving with the boom elevated.
To avoid tip over, if red tilt warning indicator lights when the boom is raised above
horizontal, lower platform to ground level. Then reposition machine so that chassis
is within the allowable operating slope before raising boom.
If the platform does not stop when a control switch or lever is released, remove
foot from footswitch or use emergency stop switch to stop the machine.
Traveling with the boom below horizontal is permitted on grades and side slopes
specified in the operating specifications section of this manual.
To avoid serious injury, do not operate machinery if any control lever or toggle
switch controlling platform movement does not return to the Off or Neutral
position when released.
To avoid a collision and injury if platform does not stop when a control switch or
lever is released, remove foot from footswitch or use emergency stop switch to
stop the machine.
4.9.1 Swinging the Boom
To swing boom, use Swing control to select Right or Left
direction.
When swinging the boom make sure there is ample room for the boom to clear
surrounding walls, partitions and equipment.
EC450AJ, EC520AJ
WARNING
CAUTION
NOTICE
31219187
Machine Operation
63