Attaching The Pusher Leg To; The Rock Drill; Controls; Controls For Alf 72D, Alf 72D-1, Alf 67/80D And Bmk 91Rs - Atlas Copco ALF 72D Instrucciones De Seguridad Y Funcionamiento

ALF 72D, ALF 72D-1, ALF 67/80D, BMK 62S, BMK 91 RS

Attaching the pusher leg to

the rock drill

The pusher leg must be fixed to the rock drill by means
of the bayonet coupling.

Controls

Controls for ALF 72D, ALF 72D-1, ALF
67/80D and BMK 91RS
Pusher Leg Feed control knob (1)
Adjust the feed force by means of the feed control
knob as follows:
Turn the knob counter-clockwise (B) to increase
the feed force.
Turn the knob clockwise (A) to decrease the feed
force.
When the feed control knob is in the closed
position, the pusher leg is vented.
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Orginal instructions
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No. 9800 0680 71a 2010-01-01
Safety and operating instructions
Valve pin (2)
When the valve pin is pushed in, the feed force
ceases abruptly, thus overriding the setting on
the feed control knob. The facility is used, e.g. to
adjust the height of the rock drill, when rigging up
the pusher leg, or when there is a tendency to jam.
When the valve pin is depressed, the piston rod in
the pusher leg is retracted automatically.

Controls for BMK 62S

Pusher Leg Feed control knob (1)
Adjust the feed force by means of the feed control
knob as follows:
Turn the knob counter-clockwise (B) to increase
the feed force.
Turn the knob clockwise (A) to decrease the feed
force.
When the feed control knob is in the closed
position, the pusher leg is vented.
Valve pin (2)
When the valve pin is pushed in, the feed force
ceases abruptly, thus overriding the setting on
the feed control knob. The facility is used, e.g. to
adjust the height of the rock drill, when rigging up
the pusher leg, or when there is a tendency to jam.
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