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7. DRILL SPEEDS
Drill Dia. (mm)
3
4
5
6
7
8
9
10
11
12
13
14
16
18
20
22
25
8. MAINTENANCE
WARNING! Disconnect drill from mains power before changing accessories, servicing or performing any maintenance.
‰
8.1.
Clean the tool after each use. A coat of maintenance spray applied to the table and column will help to keep the surfaces clean.
8.2.
Blow out any dust that may have accumulated in the motor.
8.3.
Periodically lubricate table elevation rack/gear/worm mechanism and the spindle sleeve exterior
8.4.
BELT CHANGING - Instructional video available on Sealey YouTube channel.
8.4.1.
Isolate the drill from the power supply.
8.4.2.
Remove the belt tension as in section 6.4.
8.4.3.
Remove the belt(s) and replace with another of the same specification.
8.4.4.
Re-tension the belts as in section 6.4.
8.4.5.
Close and secure the pulley case.
9. TROUBLE SHOOTING
PROBLEM
Machine will not start
Excessive noise
Excessive drill wobble
Drill binds in the workpiece
Drill burns or smokes
Table is difficult to raise/lower
Original Language Version
© Jack Sealey Limited
Drill Speed (rpm)
Steel
Cast Iron
1820
2580
1350
1820
1290
1350
970
1290
830
970
830
970
500
970
500
830
500
830
420
830
420
500
420
500
320
500
320
420
280
320
210
320
120
280
POSSIBLE CAUSE
1. Micro switch in belt cover not closed
1. Incorrect belt tension
2. Spindle is dry
3. Pulley is loose
4. Bearing damaged
1. Chuck is loose
2. Bearing or spindle shaft is worn
3. Chuck is worn
4. Drill fitted incorrectly or faulty
1. Feed pressure is wrong
2. Belt is loose
3. Drill bit is loose
4. Speed is too fast
1. Speed is too fast
2. Chips are not discharging
3. Drill bit is blunt
4. Lubrication needed
5. Feed pressure is wrong
1. Lubrication is needed
2. Rack is bent
GDM Series 50B.V2, 92B, 120B.V2, 150B.V2, 180B.V2 ....Issue1
Iron
Alum. & Copper
2580
2580
1820
2580
1350
2580
1290
2580
970
2580
970
2580
830
1820
830
1820
830
1820
500
1820
500
1350
500
1350
500
1290
420
1290
320
970
280
970
210
830
SOLUTION
1. Adjust striker plate
1. Adjust tension
2. Disassemble spindle/quill and lubricate
3. Tighten pulley
4. Replace the bearing
1. Refit the chuck (see 5.1.11)
2. Replace worn part
3. Replace the chuck
4. Fit correctly or change drill
1. Apply less pressure
2. Adjust tension
3. Tighten the chuck jaws with the key
4. Change the speed
1. Change the speed
2. Clean the drill bit
3. Use a new bit
4. Lubricate while drilling
5. Apply less pressure
1. Lubricate with light oil
2. Straighten the rack
22/06/21
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