Drilling; Hammer Rotation - Marini Quarry Votager Operating And Maintenance Manual

DRILLING:

Before drilling, make sure that the column is securely resting on the drilling surface
(see "Moving the column closer").
Open the valve (F) to feed the rock drill flushing and the valve
(A) to feed the rock drill percussion.
NOTE: the gauge indicator (B) has to stay on gree area
(6 bar).
NOTE: if the machine is equipped with air and water
flushing see pag. 44 for valves description.

Hammer rotation

To rotate the hammer, push the lever down
(fig. 72) in the WORK position.
The pressure indicated on the pressure gauge (C)
must be at the most equal to 140 bar (factory
setting).
Thrust pressure
(Raising/lowering the drill carriage)
Pull the lever to lower the carriage (fig. 73).
Push the lever to raise it (fig. 73).
The pressure indicated on the pressure gauge (C)
must be at the most equal to 140 bar (factory
setting).
The amount of thrust can be adjusted using the knob (E).
Turn the knob clockwise to increase the thrust pressure.
Turn the knob counterclockwise to decrease the thrust pressure.
072010
48
WORK control panel
A B
Fig. 71
C
WORK control panel
Fig. 72
D
E
WORK control panel
Fig. 73
F