SmartROC D65 T4F 8 Drilling
99 No: 713944459.6 en
Rotation delay time
8.
After 2 seconds, collaring begins for a preset extent. This extent can be specified un-
der Initial collar length, in menu Drilling, Parameters, Others.
Drill out when position M1 or the desired hole length/depth is reached
When position M1 is reached during the OHA process, the rig will perform the following
steps:
1.
The drill feed will stop.
2.
The cradle moves back to position M2.
3.
Rotation and air flushing continue until the air pressure has fallen to the value set ac-
cording to Air pressure, drill out, in menu Drilling, Parameters, Others. If this pres-
sure is not reached within 5 seconds, rotation and air flushing are turned off and the
RHS sequence continues.
4.
If Extra flushing has been selected with F2, rotation is turned off and air flushing
continues for a preset time which can be set via Extra flushing, Time. The Water
mist function is not switched on during extra flushing.
Automatic collaring - hole build.
Automatic collaring is an extension of the initial collaring function. When Automatic col-
laring is selected, the rig drills forwards then backs up a set distance with the first rod in or-
der to build the hole. Both initial collaring and automatic collaring are accessed via F2.
Menu F2 - Settings 1
The sequence which is followed during Automatic collaring is the same as for initial collar-
ing until the drill tip makes contact with the rock. Then the first part of the hole is created in
three steps. Each step can be repeated a certain number of times. The parameter menu
for Automatic collaring is reached via F2, Settings 3, Automatic collaring.