Snorkel MB20-sn1000+ - Manual (Page 16)

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2. Operation & Specifications
14. FINAL PREPARATION Configure the masts and jib to the stowed position. Replace
all machine covers and secure.
NOTE: The machine is now ready for Operation or Transportation.
2.4 O
PERATION OF THE
P
LATFORM
C
ONTROLS
The primary (Upper) control box is permanently fitted to the front of the platform. It
features a multi-use joystick which provides proportional control for all the machines
functions. That includes, raising or lowering the mast, raising or lowering the jib,
rotating the mast assembly, and also to drive and steer the machine.
A safety Interlock Switch or ‘deadman button’ is incorporated into the Joystick. It
must be activated at all times in order to operate any function. This feature allows for
one-handed operation.
The secondary (Lower) control box is fitted to the mast cover at arm level. It features
an enable button and selector buttons to provide pre-programmed speeds for all
functions except drive and steering. This control station is used primarily for service-
type operations including pre-operation inspection. It should never be used to
position a manned or un-maned platform.
NOTE: It may be used in the event of emergency to lower the manned platform.
C
ONTROLS AND
I
NDICATORS
The pre-operation safety checks should be carried out prior to operation. These
checks are detailed in the previous section. Operators who follow these guidelines
will become familiar with the controls and indicators on the machine.
This section summarises the controls and indicators in tabular form and provides
more detailed information.
W A R N I N G ! !
The issue of reduced speed while elevated and deployment of the
pothole protection bars is crucial to the safe operation of this
machine.
The machine may not be released or operated unless these
functions operate properly.
W A R N I N G ! !
NEVER operate the machine from the upper controls until the
platform entrance drop-bar is in the fully lowered position and the
safety harness is fitted.
T O T URN T HE M ACHINE O N
Turn the key switch on the lower controls panel to platform controls or lower
controls as required, the overload warning lamp on the platform control box
will flash for 2 seconds and the buzzer will sound twice confirming that the
overload sensor has booted up.