Sealey GDM50B - Manual (Page 4)

prOBlEM pOSSiBlE CaUSE SOlUTiON
Excessive noise 1. Incorrect belt tension 1. Adjust tension
2. Spindle is dry 2. Disassemble spindle/quill and lubricate
3. Pulley is loose 3. Tighten pulley
4. Bearing damaged 4. Replace the bearing
Excessive drill wobble 1. Chuck is loose 1. Tighten the chuck by pressing it against the table (see 5.1.10 - 5.1.12)
2. Bearing or spindle shaft is worn 2. Replace worn part
3. Chuck is worn 3. Replace the chuck
Drill binds in the 1. Feed pressure is wrong 1. Apply less pressure
workpiece 2. Belt is loose 2. Adjust tension
3. Drill is loose 3. Tighten the drill with the key
4. Speed is too fast 4. Change the speed
Drill burns or smokes 1. Speed is too fast 1. Change the speed
2. Chips are not discharging 2. Clean the drill
3. Drill bit is dull 3. Use a new bit
4. Lubrication needed for work 4. Lubricate while drilling
5. Feed pressure is wrong 5. Apply less pressure
Table is difficult to raise 1. Lubrication is needed 1. Lubricate with light oil
2. Rack is bent 2. Straighten the rack
9. TrOUBlESHOOTiNG
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.
8. MaiNTENaNCE
7. Drill SpEEDS
Drill Speed (rpm)
Drill Dia. (mm)
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
fig. 7
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.
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 product.
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 and promotions call us on 01284 757525 and leave your full name and address, including postcode.
01284 757500
01284 703534 [email protected]
Sole UK Distributor, Sealey Group,
Kempson Way, Suffolk Business Park ,
Bury St. Edmunds, Suffolk,
IP32 7AR
www.sealey.co.uk
Web
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Original Language Version
GDM50B (GDM50BX) Issue: 3 - 05/03/12