Ground control box 6-2, Boom speed, 6-2, 6-4, Choke/cold start, 6-2, 6-4, 8-2, 8-3 – Snorkel MHP34J(Bi-Energy Option) User Manual
Page 32: Emergency stop, 6-2, 6-4, 8-1, Jib boom, 6-2, 6-4, Lift enable, 6-2, Lower boom, 6-2, 6-4, Master key switch, 6-2, 7-1, 8-2, 8-3, 9-1, Platform/ground selector, 6-2, 8-2, 8-3, 9-1, Slew, 6-2, 6-4
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Ground Control Box
Controls for operating the MHP12/34J from the
ground, are located on the right side of the turnta-
ble.
NOTE
The number of each control below corresponds to
the control’s call out on the control box illustration.
1. Emergency Stop: Press the EMERGENCY
STOP switch cover down, at any time, under
any conditions, and the entire machine stops,
and nothing moves. This emergency stop
switch cover must be up and the switch
turned on for anything on the MHP12/34J to
work.
2. Platform/Ground Selector : 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.
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. Master Key Switch: This switch works like
an automobile ignition switch. Hold it at
START until the engine starts, then release it
to ON. (-) Turn the Master Key Switch to
OFF (O) if the platform is to stay in one
position for a long time, that will turn the
engine off and save fuel.
5. 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.
6. Stablizer / Boom Selector Switch:
Must be in Stablizer (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.
Control switches 7 through 10 are the platform
moving switches. Each is a three position, momen-
tary contact, normally OFF switch.
NOTE
(See “Nomenclature and Serial Numbers” in the
“Specifications” chapter 3, for boom
identification.)
7. Lower Boom : UP raises the lower boom.
DOWN lowers the lower boom.
8. Upper Boom: UP raises the upper boom.
DOWN lowers the upper boom.
9. Jib Boom: UP raises the jib boom. DOWN
lowers the jib boom.
10. Slew: LEFT rotates the entire turntable and
boom to the left. RIGHT rotates the entire
turntable and boom to the right.
11. Lift Enable: The platform can only be raised
when this light is lit. When this light is not lit
the platform will not raise because the
outriggers are not properly set.
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MHP12/34J – 11447A
6. Controls