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Controls Description
This chap ter ex plains what each con trol does.
This chapter DOES NOT explain how to use the
controls to produce useful work, re fer to the "Op er -
a tion" chap ter 10-1 for that af ter you have read this
chap ter.
For op tional equip ment con trols, see the "Op tions"
chap ter.13-1
See the "Emer gency Op er a tion" chap ter 11-1 for
the lo ca tion of the emer gency bleed down con trol
and for cor rect emer gency bleed down pro ce -
dures.
Controls and Control Decal Locations
UPPER
BOOM
LOWER
BOOM
SLEW
LIFT
ENABLE
BOOMS
STABILISER
CHOKE
Ground Controls
Optional Automatic Stabiliser Controls
OUTRIGGER INTERLOCKS
1.
OUTRIGGERS DISABLED UNLESS
BOOMS STOWED
2.
BOOMS DISABLED UNLESS ALL
OUTRIGGERS ARE DEPLOYED
AND ALL LEG INDICATOR LIGHTS
ARE LIT
CAUTION
ENSURE ALL FOUR FOOT PLATES ARE IN
FULL CONTACT WITH THE GROUND AND
THAT THEY ARE CLEAR OF MANHOLE
COVERS, DRAINS AND UNSTABLE
GROUND ETC.
LIFT ENABLE
Auto Stow
Auto Level
MHP15/44HD – 12885A
JIB
BOOM
ROTATE
PLATFORM
SPEED CONTROL
PLATFORM
BASE
ENABLED
DISABLED
HEIGHT
LOCKOUT
Ground Emergency
12523
(Other side of column. On top of valve block)
12404-12
RF
RR
LF
LR
RF
LF
RR
LR
12404-13
Manual Operation Switches
Rev F
7. Controls - Electric
The main op er at ing func tions of an MHP15/44HD
can be con trolled from the ground con trol box or
from the plat form con trol 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.
UPPER
BOOM
LIFT
JIB
ENABLE
BOOM
LOWER
BOOM
SLEW
EMERGENCY
LOWER
Platform Controls
Lower valve
Manual Stabiliser Controls
UP
UP
RF
LF
DOWN
DOWN
12385-10
EMERGENCY LOWER
1.
TO LOWER PLATFORM, OPERATE
EMERGENCY LOWER SWITCH.
2.
TO SLEW BOOM, OPERATE
'EMERGENCY LOWER' & 'SLEW'
SWITCHES TOGETHER.
SPEED CONTROL
12385-11
CHOKE
UP
UP
RR
LR
DOWN
DOWN
13052-5
page 7 - 1
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