Operator’s instructions
4. Control
41
Front control panel
Figure: Front control panel
Table: Front control panel
1Pressure gauge, flushing air pressure
2Drill feed pressure gauge
3Percussion pressure gauge
4Rotation pressure gauge
5Pressure valve, low drill feed pressure
aLOWER (anticlockwise)
bRAISE (clockwise)
6Pressure valve, high drill feed pressure
aLOWER (anticlockwise)
bRAISE (clockwise)
x100kPa
50
0
100
150
200
250
bar
2
4
6
8
12
14
16
bar
10
0
20
30
40
bar
10
0
20
30
40
bar
10
1 2
3
4
5
6
7
8
9
10
11 12
13
14 15
16
17
18 19
20
21
a
b
c