Emergency Operation; Emergency Operation Procedures; Operation From Platform Control Box - Snorkel MHP1335 Operation Manual

Emergency Operation Procedures

The fol low ing pro ce dures are emer gency pro ce -
dures only. DO NOT use them for nor mal op er a -
tion. Their pur pose is to get the plat form and
op er a tor safely to ground when the MHP13/35 /
MHP15/44 V3 will not start or some other prob lem
keeps the plat form from low er ing in the nor mal
way.

Operation From Platform Control Box

Switch set tings listed in the two (2) steps be low
must ex ist at the ground be fore emer gency op er a -
tion pro ce dures will work at the plat form con trol
box:
Ground control station settings
ENABLE
LOWER
BOOM
SLEW
ENABLE
PLATFORM
FUEL
ON
ON
ELECTRIC
BASE
Figure 9.1 - Ground Control Box
1. The Emergency Stop switch
(ON) (see Figure 9.1).
2. The Platform/Ground Selector switch
(see Figure 9.1) must be set to PLATFORM.
Platform control station
UPPER
BOOM
LOWER
BOOM
13371-3 REV A SLEW
FUEL
ELECTRIC START
Figure 9.2 - Platform Control Box
3. Set the Emergency Stop switch
(see Figure 9.2).
MHP13/35 & MHP15/44 V3 – 13619-1
LIFT
BOOMS
STABILISER START CHOKE
must be
LIFT
ENABLE
lb
kg
JIB
BOOM
ROTATE
PLATFORM
SPEED
13371-2
CHOKE EMERGENCY LOWER ENABLE
to ON

9. Emergency Operation

IMPORTANT
The MHP13/35 / MHP15/44 have an ENABLE
switch fitted to the Upper & Lower control
boxes. (see Chapter 6 for a full explanation
of the operation of this switch).
Some machines will also be fitted with a
FOOT OPERATED ENABLE switch.
On those machines fitted with the foot
switch option, both the switch on the control
box and the foot switch perform the same
function.
However it is assumed that for units fitted
with a foot switch this will be the preferred
method of operation.
If the FOOT OPERATED ENABLE SWITCH
op tion is in stalled on your ma chine go to
Step 4 - oth er wise go to Step 5.
Figure 9.3 - Enable Switch (Foot)
4. Step on the platform foot switch
Figure 9.3).
Go to Step 6.
5. Operate the Enable switch
switch down and hold it down (see Figure
9.4).
UPPER
BOOM
LOWER
BOOM
13371-3 REV A SLEW
FUEL
ELECTRIC
Figure 9.4 - Enable Switch, Platform Control
Rev C
(see
by pressing the
LIFT
ENABLE
lb
kg
JIB
BOOM
ROTATE
PLATFORM
SPEED
13371-2
START CHOKE EMERGENCY LOWER ENABLE
Box
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