Snorkel MB20N-sn0001-0131 - Manual (Page 9)

Safety Inspection
MB20N/BM26
12. MACHINE TRAVEL - UNELEVATED
Travel functions are possible only from the
platform Upper Control Station. As with all such
controls, the deadman handgrip switch must be
depressed before any function can operate.
Select ‘Drive Functions’ on the top left toggle
switch. Pushing back and forward on the
joystick moves the machine backwards and
forwards respectively.
The pothole protection will begin to retract
immediately. However, full demand speed will not
be realised until the bars are fully raised. This
takes about 3 seconds. Check that the motion
alarm DOES sound during travel.
Check that the machine travels at maximum
speed while the speed selector is switched to
‘STANDARD DRIVE’ and that the machine travels
at a markedly less speed with the switch to
‘EXTRA TRACTION’ speed.
13. CHECK MACHINE TRAVEL - ELEVATED
While the masts are raised, it is possible to
drive and steer the machine at a much reduced
CREEP SPEED. Also note that while the
masts are raised, the pothole protection bars
should be fully extended and should remain
extended during creep speed motion of the
machine.
WARNING
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.
14. FINAL PREPARATION
Configure the masts and jib to the stowed
position. Replace all machine covers and
secure. The machine is now ready for
Operation or Transportation.
See the appropiate sections in this manual.
TILT SENSOR
Locate the key switch on the left side of the
Upper Control Station. See the photo below. By
simultaneously turning the key to the position
marked ‘Emergency OverRide’ it should
now be possible to lower the mast, lower the jib
and slew the mast only.
Joystick
Deadman Grip
Page 8
(The ‘Extra Traction’ position is used for situations
where higher torque is demanded of the drive
system and where lower speed is acceptable
- such as ramp loading etc.)
Check that the thumb operated switches on the
top of the joystick operates the front wheel
steering.