Chapter 10 – Emergency Operation
50
SB47JRT – 0075522
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.
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
Figure 10.3 – Upper Controls
Platform Foot
Switch
Top
Front
Emergency Stop
Engine/Emergency
Power Switch
Drive/Boom
Selector
Start Switch
Summary of Contents for SB47JRT
Page 1: ...SB47JRT Operator Manual Jan 08 PN 508361 000 SB47JRT ...
Page 2: ......
Page 6: ......
Page 13: ...Chapter 2 Specifications SB47JRT 0075522 7 Engine Oil Viscosity Cummins B3 3 Deutz F3L 2011F ...
Page 14: ...Chapter 2 Specifications 8 SB47JRT 0075522 ...
Page 30: ...Chapter 6 Controls 24 SB47JRT 0075522 ...
Page 44: ...Chapter 7 Prestart Inspection 38 SB47JRT 0075522 ...
Page 50: ...Chapter 8 Operation 44 SB47JRT 0075522 Figure 8 6 Platform Work Lights ...
Page 58: ...Chapter 10 Emergency Operation 52 SB47JRT 0075522 ...
Page 64: ...Chapter 11 Troubleshooting 58 SB47JRT 0075522 ...
Page 66: ...Appendix A Glossary SB47JRT 0075522 ...
Page 67: ......