Snorkel TL39T - Manual (Page 36)

page 6-2 Rev C
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Ground Control Box
Controls for operating the TL39T from the ground
controls are located on the right side of the column.
❑
Lower controls / indicators:
❍
Emergency stop switch
❍
Platform / base selector switch
❍
Choke
❍
Master key switch
❍
Boom speed rheostat
❍
Stabiliser / boom selector switch
❍
Lower boom switch
❍
Upper boom switch
❍
Tele boom switch
❍
Level basket switch
❍
Slew switch
❍
Enable switch
❍
Lift enable indicator
❍
10.9m height lockout switch (Option)
❍
Fuel / electric selector switch (Option)
❍
Overload protection indicator (Option)
❍
Emergency lower valve
Figure 6.2 - Lower Control Box Controls
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) for anything on the MHP to work.
Pull the switch and it will pop out (on).
2. Platform/Base Selector : Must be in the
BASE position for the ground control box to
work. The switch MUST be in the PLATFORM
position for the platform control box to work.
NOTE: This switch also acts as the ‘master
key switch’. Turning the key to the central
position and removing the key will effectively
disable all operations.
3. 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.
4. Start Switch: Press and hold this switch
DOWN to operate the starter motor for the
MHPAT.
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. Stabliser / Boom Selector Switch: Must be
in Stabliser position (DOWN) for the stabilisers
to work. Once the stabilisers are down and set
the switch must be placed in the boom (UP)
position for the booms to work.
Control switches 7 through 11 are the platform
moving switches. Each is a three position,
momentary contact, normally OFF switch.
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. Tele Boom: LEFT retracts the telescoping
boom. RIGHT extends the telescoping boom.
10. Level Basket: LEFT tilts the basket forwards.
RIGHT tilts the basket backwards
11. Slew: LEFT rotates the entire turntable and
boom to the left. RIGHT rotates the entire
turntable and boom to the right.
12. 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.
6. Controls