Snorkel AB60J CE - Manual (Page 52)

Chapter 10 – Emergency Operation
48 AB60J – 0182099EE
Figure 10.4 – Platform Foot Switch
5. Hold the engine/emergency power switch in the
emergency power position.
6. Hold the appropriate function toggle switch in the
desired direction.
Emergency Lowering
The riser and main booms can be lowered in an emer-
gency using their respective emergency lowering knobs.
The emergency lowering knobs are at the base of the
lift cylinders. The emergency lowering knobs allow the
booms 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.
Riser Boom
Use the following procedure to manually lower the riser
boom.
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 – Riser Boom
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.
Figure 10.3 – Upper Controls
Top
Emergency Stop
Engine/Emergency
Power Switch
Drive/Boom
Selector
Front
Start Switch
Platform Foot
Switch
Emergency
Lowering Knob
Inside Turntable