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Chapter 10 – Emergency Operation
Emergency Stop
Platform Foot
Switch
Figure 10.4 – Platform Foot Switch
5. Hold the engine/emergency power switch in the emer-
gency power position.
6. Hold the appropriate function toggle switch in the
desired direction.
Emergency Lowering
The main boom can be lowered in an emergency using
the emergency lowering knob at the base of the lift cylin-
der. The emergency lowering knob allows the main boom
to be lowered only. Only use this method if the engine
will not start and the emergency power system will not
work.
A
Danger
Pinch points exist between boom components and
between the booms and turntable. Death or serious
injury will result if the booms or platform lowers
onto personnel. Make sure all personnel stand clear
while lowering the booms.
Use the following procedure to manually lower the main
boom.
50
Engine/Emergency
Power Switch
Drive/Boom
Selector
Top
Figure 10.3 – Upper Controls
Start Switch
Front
1. Slowly turn the knob (refer to Figure 10.5) to open
the bleed down valve. Control the rate of descent by
turning the knob.
Figure 10.5 – Emergency Lowering Knob
A
Warning
The potential for an accident increases when safety
devices do not function properly. Death or serious
injury can result from such accidents. Fully close
the emergency lowering knob before operating the
aerial platform.
2. Turn the knob to close the cylinder bleed down valve.
Towing
The aerial platform may be towed at slow speeds using
the optional tow kit. The tow vehicle must have sufficient
capacity to safely tow and stop itself and the aerial plat-
form on the steepest grade and type of surface that may
be encountered. Refer to Chapter 2 for the gross vehicle
weight of the aerial platform.
Emergency
Lowering Knob
SB47JRT – 0075522
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