Design Features - Snorkel A38E Operator's Manual

Section
3.2
neutral (centre) position.
It will be noticed that on the Upper Control Box a set
of switches are used to alternate functions. Each
function will have it's corresponding graphic and
lamp. This selector switch indicates to the Controller
which function is required and by using the Joystick
the speed of this selected function can be adjusted.
Note: Machines supplied to Australia require that the
operation of the Function Selector switch must be
'held' on until after the Joystick Interlock Switch is
depressed. Every time the Joystick Interlock Switch
is released, the Function Select and 'hold' sequence
must be repeated.
The boom functions on the chassis controls provide
proportional control for each function by way of an
analog rocker switch, the desired function can be
activated by holding on one of four switches on the
controls and and operating the analog rocker, the the
four switchs act as both selector & enable switches.
The use of these functions is further explained
throughout this Section.

DESIGN FEATURES

The A38E Series Work Platform has the following
features:
•
The drive speed is limited to a 'creep speed' when
operating the Work Platform while the machine is
elevated.
•
The energy-efficient motor control units provides
long battery life and smooth proportional control
of the boom and drive functions.
•
All cylinders are fitted with hydraulic hose-burst
protection interlocks.
•
The on-board charger is fully automatic and
charges the batteries efficiently and economically.
If the work platform starts to become unstable and
the Tilt Sensor is activated an alarm will sound in
the upper control box. In this situation power is
partially cut to the upper controls to prevent any
boom movements (i.e. UP, TELE OUT) that might
increase instability. An emergency override switch
is fitted to allow the booms to be lowered at a
controlled speed to bring the machine back to a
stable position.
•
In the event of a power loss the two Boom Lift
Cylinders are fitted with emergency lowering
valves which allow the booms to be lowered at a
controlled speed by an operator on the ground.
•
A Master Cylinder/Slave Cylinder levelling
Page 12
Operation
system ensures that the Platform remains
level throughout the entire working cycle of the
machine.
•
A manual rotation facility is fitted to allow rotation
of the Elevating Assembly in the event of power
loss.
HOUR METER & BATTERY CHARGE
INDICATOR.
The A38E Series Work Platform is equiped with a
display in the chassis control panel which displays
total hours run & an Indication of remaining battery
charge.
LOAD SENSING
The A38E is fitted with a load sensing system
designed to comply with the requirements of :
BS EN 280 : 2001
If a load equivelent to 90% of safe working load is
lifted an overload lamp will illuminate on the platform
control box.
If a load which is greater than the safe working load
is present in the basket all machine functions will
cease to operate and an acoustic warning will sound.
In order to return to normal operation a load equal to
or less than the safe working load must be present in
the basket and the power must be re-cycled, power
can be re-cycled by pushing the emergency stop
button and releasing it again.
A38E Work Platform