Emergency Situations; Emergency Override; Emergency Lowering - Snorkel A38E Operator's Manual

To rotate the "PLATFORM" RIGHT, the
5.
Controller Joystick should be moved forward.
Conversely to rotate "PLATFORM" LEFT move
the Controller Joystick backward.
6. Position the Platform perpendicular to the
booms when driving or stowing the areial
platform.
MANUAL PLATFORM ROTATE
Turn the hand crank (refer to Figure 3-2) counterclock-
wise to rotate the platform to the left and clockwise to
rotate the platform to the right.
Hand Crank
Figure 3-2: Manual Platform Rotator
Position the platform perpendicular to the booms
when driving or stowing the aerial platform.
EMERGENCY SITUATIONS &

EMERGENCY OVERRIDE

In any emergency situation, the first action to be taken
should be to hit the red "Emergency Stop" button for
instant cutout of all functions. It will then be required
to twist the button clockwise, this releases the cutout
and the machine can be operated again.
If the audible Tilt warning alarm sounds, normal
control functions will cease to operate. This will be
due to the following problem ;
•
the machine is out of level i.e. Tilt Sensor has been
activated.
In this situation the only machine functions that will
operate are descent functions, descend to the ground
in a controlled manner and cycle the power (push and
release the emergency stop) to restore all functions,
move the machine to a level surface and continue
with normal operation.
Note that during emergency operation, controls
will operate at a fixed, slow speed and will not
allow the raising or extending of the Booms.
The Booms can be lowered or retracted.
A38E Work Platform
Operation

Emergency Lowering

When operating this function, extreme care
must betaken to ensure that the person
carrying out the task does not become trapped
by the structure. DO NOT climb down the
Elevating Assembly to operate these valves.
Should the machine become inoperable when
elevated, request a person on the ground to lower the
platform using the emergency lowering valves. These
are red knobs (push type) mounted at the base of the 2
Main Hydraulic Lift Cylinders (See Figure 3-3).
Operate the lower boom first by pushing slowly.
The boom will descend slowly. The speed of descent is
controlled by retaining pressure on the valve - ensure
a slow controlled rate of descent at all times. Descent
can be halted at any time by removing pressure from
the red knob.
Repeat the operation if necessary for the upper boom
when cylinder is in reach of the ground.
With both main booms lowered fully it should then be
possible to leave the platform safely.
A CAUTION A
Before operating the Emergency
Lowering Valves the surrounding
area should first be cleared of any
potential obstructions. It is also
important that when the valve is
pushed, it is initially done slowly.
This is so that sudden movement
will not occur in the Elevating
Assembly, leading to a potentially
unstable machine.
Figure 3-3: Emergency Lowering
Section
3.5
Page 19