Snorkel MB20-sn1000+ - Manual (Page 21)

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2. Operation & Specifications
E
MERGENCY
S
ITUATIONS
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
E
MERGENCY
L
OWERING
(
BY HAND
)
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.
C A U T I O N ! !
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.
Figure 8: Emergency Lowering - Mast Valve
Figure 9: Emergency Lowering - Jib Valve
M
ANUAL
R
OTATION
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).
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.
The Jib may be manually lowered
by operating the manual release
valve located between the Jib
Structure.