+++guide-for-doggers-ODLICNO

Fail safe
Stationary cranes often use a separate buzzer system as a backup. The dogger has a buzzer to press
connected to the crane cabin by a wire.
Radio directions for crane drivers
A dogger must give crane drivers clear verbal signals when directing crane movements. The noise
of the crane motor and distortion over the radio can make it difficult for the crane driver to hear
directions.
The following are the standard directions for crane drivers from doggers:
Hook movement 'Hook up' and
'Hook down'
Boom movement 'Boom up' and
'Boom down'
'Boom extend' and
'Boom retract'
Slewing
'Slew left' and
'Slew right'
OK to raise
'All clear'
Do not move 'Stop'
Speak clearly and say the name of the part of the crane to be moved first – then the direction of
movement.
Bell or whistle code
Stop:
Hoist:
Lower
Swing left:
Swing right:
Boom up:
Boom down:
Boom extend:
Boom extract:
1 short
2 short
1 long
1 long, 1 short
1 long, 2 short
3 short
4 short
1 long, 3 short
1 long, 4 short
:
Workplace Health and Safety Queensland (Department of Justice and Attorney-General)
Information guide - Guide for doggers
PN10123 Last updated 15 July 2010
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