15
Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
3. When the belt has been correctly positioned, re-tension by levering the
motor away from the head until the belt deflects by approx 10 mm at its
centre when using reasonable thumb pressure. Lock the motor in this
position with the belt tension locking screws.
DRILL OPERATING SPEEDS
The table below gives the belt arrangement for given drilling speeds.
A similar chart is also located on the inside of the pulley cover.
The diagram shows the belts fitted to step 1 of the spindle pulley and step 4 of
the motor pulley, giving a speed of 180 rpm.
S
PINDLE
P
ULLEY
A/
CENTRE
M
OTOR
P
ULLEY
B/
C
ENTRE
D
RILL
S
PEED
RPM
S
PINDLE
P
ULLEY
A/
CENTRE
M
OTOR
P
ULLEY
B/
C
ENTRE
D
RILL
S
PEED
RPM
1
1-A
E-4
180
9
3-C
3-D
650
2
1-A
3-D
270
10
2-B
2-C
720
3
2-B
4-E
310
11
5-E
3-D
1230
4
1-A
2-C
420
12
4-D
3-D
1320
5
3-C
4-E
430
13
3-C
1-B
1460
6
2-B
3-D
470
14
5-E
2-C
1880
7
4-D
4-E
580
15
4-D
1-B
1950
8
1-A
1-B
630
16
5-E
1-B
2770
Содержание 6505532
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