SmartROC D65 T4F 8 Drilling
101 No: 713944459.6 en
n Distance back: Backward distance (if not M4 + offset is selected) is used if Move
backwards to M4 + offset has not been selected. After each forward cycle, the drill is
moved back by the distance which the operator specifies here.
Air when tramming forward
Air flow
n Air flow, reduced Reduced air flow is on during each forward feed.
n Air flow, full Full air flow is on during each forward feed.
n Reduced air flow at rock contact If this choice is activated, the air flow is switched
off during the forward movement of the drill bit. When the feed pressure measured ex-
ceeds the calibrated idling feed pressure plus pressure for Air on rock contact detect
level, reduced air is switched on. For example if the calibrated idling feed pressure is
50 bar and Air on rock contact detect level is 13 bar, reduced air is switched on
when the total pressure exceeds 63 bar. The feed pressure measured can be given in
the Air on rock contact detect level field. When rock contact is lost, the air flow al-
ways continues for a certain time. This time is set using Air on time after rock con-
tact. This function helps avoid sudden short shocks which can lead to blockages in the
hole. The air is always switched on when the drill steel is less than 0.3 m from the
drilled hole base, to protect against shocks.
n Full air flow at rock contact: Same function as Reduced air flow at rock contact
except that the entire air flow is used when rock contact is made and the measured
feed pressure exceeds the calibrated idling feed pressure.
Air and rotation when moving backward
Air and rotation when moving backward
n Off: No air flow on backward feed.
n Air flow, reduced: Reduced air flow is on at backward feed.
n Air flow, full: Full air flow is on at backward feed.
n Rotation on at backward feed: This function rotates the drill bit during backward
feed.
Water mist
Water mist option
n Water mist on at forward feed: When the drill bit moves forward, water mist is activ-
ated.
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