
Figure 8.9 - Insulated Fibreglass Basket,
Emergency Lower Valve
1.
Slew
: LEFT rotates the entire turntable and
boom to the left. RIGHT rotates the entire
turntable and boom to the right.
2.
Lower Boom
: UP raises the lower boom.
DOWN lowers the lower boom.
3.
Upper Boom
: UP raises the upper boom.
DOWN lowers the upper boom.
4.
Jib Boom
: UP raises the jib boom. DOWN
lowers the jib boom.
5.
Platform Rotate
: (Option) LEFT rotates the
platform left. RIGHT rotates the platform
right.
(Not shown here)
Items 1 through 5 (see Fig ure 8.10) are the plat form
mov ing con trol le vers.
All le ver move ment is ver ti cal. This pro duces a cor -
re spond ing left/right move ment for con trol le vers
and
, an up/down move ment for con trol le vers
and
, and an ex tend/re tract move ment for con -
trol le ver
.
Figure 8.10 - Upper Controls - Insulated
Fibreglass Basket, Platform Movement
Control Valve levers
❑
Upper controls (non-insulated fibreglass
basket):
❍
Emergency stop switch
❍
Choke switch
❍
Start switch
❍
Emergency lower control valve
❍
Valve control lever for slew
❍
Valve control lever for lower boom
❍
Valve control lever for upper boom
❍
Valve control lever for fly boom
❍
Optional Valve control lever for platform
rotate
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.
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
: This switch works like an automobile
ignition switch. Hold it at START until the
engine starts, then release it to ON (-). If the
engine dies in ON, the switch must be turned
to OFF (O) before it will go back to START.
4.
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.
Figure 8.11 - Upper Control Box Controls -
Non-Insulated Fibreglass Basket
MHP15/44HD – 12885A
Rev F
page 8 - 5
8 Controls - Hydraulic