Snorkel MB20J, Operator'S Manual

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2. Operation & Specifications
2 - 11
EMERGENCY SITUATIONS
In any emergency situation, the immediate action is to push the red “Emergency Stop” button.
This will instantly cut of all electrical power to the controls. The button must be twisted in a
clockwise direction in order to recommence control.
However, the switch should be reset only when it is safe to do so.
If the Continuous Audible warning alarm sounds, normal control functions will cease to operate.
This will be due to the following problem;
• The Tilt Sensor has been activated
EMERGENCY LOWERING (BY HAND)
! !
During manual emergency lowering, extreme care must be taken to
ensure that the person carrying out the task is not struck by the jib or
platform structure.
C A U T I O N
Should the machine become inoperable when elevated request a person on the ground to lower
the platform using the emergency lowering valves. Lower the mast structure before lowering the
jib/platform structure.
NOTE: Lower the masts fully before lowering the jib structure.
Figure 8: Emergency Lowering - Mast Valve Figure
Locate the red lever behind the mast cover
inspection door on the left hand side of the
machine. By pushing the lever up, the mast
will descend fully under gravity. Releasing the
spring-loaded lever will cease this operation
immediately if required.
9: Emergency Lowering - Jib Valve
The Jib may be manually lowered by operating
the manual release valve located between the
Jib Structure.
MANUAL ROTATION
1. Lower the masts and jib fully before manually slewing the assembly. Press the Emergency Stop
Button to prevent inadvertent powered motion.
2. Locate the opening behind the front right drive wheel. Apply a 23 mm socket wrench with
extension bar to the shaft and turn to rotate the elevating assembly. (Turning the front wheel fully
to one side will facilitate this operation).