Sealey GDM1630FR - Manual (Page 4)

6.6. Setting the drill depth
6.6.1. Use the scale on the side of the drill head near the drill handle.
6.6.2. Loosen locking screw (36) and set the scale to the depth required. Tighten locking screw.
6.6.3. When ready to drill, simply pull the feed handle. The drill will stop at the set depth.
6.7. Setting the drill head
6.7.1. Fore and aft movement
6.7.1.1. Loosen clamping lever (fig.9.A) and turn feed knob (fig.9.B) to move head to the required position. Retighten clamping lever.
6.7.2. Horizontal rotation
6.7.2.1. Loosen clamping lever (fig.10.A) and rotate head on column to required position (360° rotation is available). Retighten clamping
lever.
6.7.3. Tilting
6.7.3.1. Loosen clamping lever (fig.9.A), Pull out and turn - to hold out - vertical lock (fig.10.B). Head may now be tilted up to 45° clockwise
and 90° anticlockwise. Angular position is shown by line (fig.9.C) against scale (fig.9.D). When set, retighten clamping lever.
After returning head to the vertical position always re-engage the vertical lock.
6.7.4. Head square to table
6.7.4.1. Confirm that head is in the ‘vertical’ position, that the vertical lock (fig.10.B) is engaged and that the clamping lever (fig.9.A) is tight.
6.7.4.2. Using a spirit level check that table is horizontal and, if necessary, adjust as in para.6.2.2.
6.7.4.3. Clamp a straight rod, or a drill bit, in the chuck and use a machinist’s square to check that the rod is perpendicular to the table.
Adjust drill head as necessary by loosening the two set screws (fig.11.A) either side of the spindle housing and rotating the housing
on the horizontal tube (81). When correctly positioned retighten set screws.
fig.9 fig.11
7. DRILL SPEEDS
The chart below shows recommended drill speeds for various bit diameters and materials. Select the available drill speed that is the
same as, or nearest to, the one recommended for the task in hand.
Drill Speed (rpm)
2450
1870
1330
790
500
Spindle Pulley Motor Pulley
fig.10
Drill Diameter
(mm)
Drill Speed (rpm)
Steel Cast Iron Iron Alum'& Copper
3 1820 2580 2580 2580
4 1350 1820 1820 2580
5 1290 1350 1350 2580
6 970 1290 1290 2580
7 830 970 970 2580
8 830 970 970 2580
9 500 970 830 1820
10 500 830 830 1820
11 500 830 830 1820
12 420 830 500 1820
13 420 500 500 1350
14 420 500 500 1350
16 320 500 500 1290
18 320 420 420 1290
20 280 320 320 970
22 210 320 280 970
25 120 280 210 830
Original Language Version GDM790BR, GDM1630 Issue: 4 - 23/03/10