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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 Dia. (mm)
Steel
3
1820
4
1350
5
1290
6
970
7
830
8
830
9
500
10
500
11
500
12
420
13
420
14
420
16
320
18
320
20
280
22
210
25
120
8. MAINTENANCE
8.1.
Clean the tool after each use. A coat of automobile-type wax 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 the table elevation rack/gear/worm mechanism.
9. TROUBLESHOOTING
PROBLEM
Excessive noise
Excessive drill wobble
Drill binds in the
workpiece
Drill burns or smokes
Table is difficult to raise
Pillar Drill
Models GDM90B & GDM95B.
73/23/EEC Low Voltage Directive (S.I. 1994/3260)
89/336/EEC EMC Directive (S.I. 1992/2372 & Amendments).
98/37/EC Machinery Directive (S.I. 1992/3073)
93/68/EEC CE Marking Directive
NOTE:
It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior notice.
IMPORTANT: No liability is accepted for incorrect use of this equipment.
WARRANTY: Guarantee is 12 months from purchase date, proof of which will be required for any claim.
INFORMATION: For a copy of our latest catalogue call us on 01284 757525 and leave your full name and address, including postcode.
Drill Speed (rpm)
Cast Iron
2580
1820
1350
1290
970
970
970
830
830
830
500
500
500
420
320
320
280
POSSIBLE CAUSE
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
1. Feed pressure is wrong
2. Belt is loose
3. Drill is loose
4. Speed is too fast
1. Speed is too fast
2. Chips are not discharging
3. Drill bit is dull
4. Lubrication needed for work
5. Feed pressure is wrong
1. Lubrication is needed
2. Rack is bent
Declaration of Conformity
are in conformity with the following standards and directives.
Signed by Mark Sweetman
The construction files for these products are held by the Manufacturer and may be inspected by a national
authority upon request to Jack Sealey Ltd.
Sole UK Distributor,
Sealey Group,
Bury St. Edmunds,
Suffolk.
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 tension
2. Disassemble spindle/quill and lubricate
3. Tighten pulley
4. Replace the bearing
1. Tighten the chuck by pressing it against the table (see 4.2.12)
2. Replace worn part
3. Replace the chuck
1. Apply less pressure
2. Adjust tension
3. Tighten the drill with the key
4. Change the speed
1. Change the speed
2. Clean the drill
3. Use a new bit
4. Lubricate while drilling
5. Apply less pressure
1. Lubricate with light oil
2. Straighten the rack
We, the sole importer into the UK, declare that the products listed here
For Jack Sealey Ltd. Sole importer into the UK of Sealey Quality Machinery.
01284 757500
fig. 7
Date 1st November 1999
01284 703534
E-mail: sales@sealey.co.uk
GDM90/95B - 0016 - (2) - 111000
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