Platform Con Trol Box; Upper Controls - Snorkel MHP1335 Operation Manual

6. Controls

Platform Con trol Box

Con trols for op er at ing the MHP13/35 / MHP15/44
V3 from the plat form (up per con trols) are lo cated
on the plat form con trol box, with the ex cep tion of
the foot switch which is on the plat form floor.

Upper controls:

Emergency stop switch
Choke
Start switch
Boom speed switch
Emergency lower switch
Lower boom switch
Upper boom switch
Jib boom switch
Slew switch
Platform rotate switch (Option)
Enable switch
Enable switch, foot (Option)
Lift enable indicator
Fuel / electric selector switch (Option)
Overload indicator
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) to start or run the MHP from the
platform control box. Pull the switch and it
will pop out (on). Press the switch in (off) if
the platform is to stay in one position for a
long time. That will turn the engine off and
and save fuel.
UPPER
BOOM
LOWER
BOOM
SLEW
13371-3 REV A
FUEL
ELECTRIC START
Figure 6.4 - Upper Control Box Controls
2. Choke/Cold Start: Hold the switch DOWN
while you start an engine that is at ambient
air temperature (a "cold" engine). This will
choke the engine.
3. Start Switch: Press and hold this switch
DOWN to operate the starter motor for the
MHP.
page 6 - 4
LIFT
ENABLE
lb
kg
JIB
BOOM
ROTATE
PLATFORM
SPEED
13371-2
CHOKE EMERGENCY LOWER ENABLE
4. Boom Speed: This control determines how
fast the booms move. Set it to SLOW (turtle)
until you are very familiar with the way the
machine works or if the platform is working in
dangerous or cramped surroundings.
5. Emergency Lower: If the engine stops and
cannot be restarted, hold the switch down
and this will lower the upper and lower
booms (see Chapter 9 "Emergency
Operation" for details of emergency lowering
procedure).
Items 6 through 10 are the plat form mov ing
switches. Each is a three (3) po si tion, mo men tary
con tact, nor mally OFF switch.
6. Lower Boom: UP raises the lower boom.
DOWN lowers the lower boom.
7. Upper Boom: UP raises the upper boom.
DOWN lowers the upper boom.
8. Jib Boom: UP raises the jib boom. DOWN
lowers the jib boom.
9. Slew: LEFT rotates the entire turntable and
boom to the left. RIGHT rotates the entire
turntable and boom to the right.
10. Platform Rotate: (Option) LEFT rotates the
platform left. RIGHT rotates the platform
right.
11 Enable Switch: The enable switch must be
pressed DOWN in conjunction with the
boom/platform moving function you select.
The purpose of this switch is to prevent the
platform/booms from moving if something or
someone accidentally pushes one of the
boom/platform moving controls. The
boom/platform moving switches will not
operate unless the enable switch is held
down at the same time.
UPPER
BOOM
LOWER
BOOM
SLEW
13371-3 REV A
FUEL
ELECTRIC
Figure 6.4 - Upper Control Box Controls
Rev C MHP13/35 & MHP15/44 V3 – 13619-1
LIFT
ENABLE
lb
kg
JIB
BOOM
ROTATE
PLATFORM
SPEED
13371-2
START ENABLE
CHOKE EMERGENCY LOWER