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8 Controls - Hydraulic
See the "Emergency Operation" chapter 11-1 for
the location of the emergency bleed down control
a n d f o r c o r r e c t e m e r g e n c y b l e e d d o w n
procedures.
The main operating functions of an MHP15/44HD
V2 can be controlled from the ground control box or
from the platform control box.
WARNING
Pinch points may exist between moving
components. death or serious injury can
result from becoming trapped between
components, buildings, structures, or other
obstacles. Make sure all personnel stand
clear while operating the MHP.
Ground Control Box
Con trols for op er at ing the MHP15/44HD V2 from
the ground, (lower con trols) are lo cated on the side
and rear of the col umn.
Lower controls:
Emergency stop switch
Platform/ground selector switch
Choke
Start switch
Stabiliser/boom selector switch
Lift enable indicator
Enable switch
Overload indicator
Height lockout switch (Option)
Fuel / electric selector switch (Option)
Emergency lower switch
Valve control lever for lower boom
Valve control lever for upper boom
Valve control lever for slew
1. Emergency Stop: Press the red
EMERGENCY STOP button in, at any time,
under any conditions, and the entire machine
stops, and nothing moves. This switch must
be out (on) for anything on the MHP to work.
Pull the switch and it will pop out (on).
2. Platform/Ground Selector switch : Must be
in the GROUND position (down) for the
ground control box to work. The switch
MUST be in the PLATFORM position (up) for
the platform control box to work.
Note: This switch also acts as the 'master
key switch'. Turning the key to the central
position and removing the key will effectively
disable all operations.
page 8 - 2
ENABLED
DISABLED
HEIGHT
LOCKOUT
LIFT
ENABLE
FUEL
BOOMS
ELECTRIC
STABILISER
PLATFORM
ON
OFF
ON
BASE
Figure 8.2 - Lower Control Box Controls
3. Choke/Cold Start: Hold the switch UP while
you start an engine that is at ambient air
temperature (a "cold" engine). This will choke
the engine.
4. Start Switch: Press and hold this switch
DOWN to operate the starter motor of the
MHP1544HD.
5. Stabiliser / Boom Selector Switch:
Must be in Stabiliser (outrigger) position
(down) for the outriggers to work. Once
outriggers are down and set the switch must
be placed in the boom (up) position for the
booms to work.
6. Lift Enable Indicator: The platform can only
be raised when this light is lit. When this light
is not lit the platform will not raise because
the stabilisers are not properly set.
Rev B
lb
kg
EMERGENCY
ENABLE
LOWER
START
CHOKE
13540-1 REV B
MHP15/44HD V2 – 13620-1
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