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Sealey SM52 Instructions page 3

Combination wet & dry bench grinder

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WARNING! Before each use rotate the grinding wheel by hand to check it is undamaged and secure.
Remove adjusting keys and wrenches before turning the machine on. Ensure you wear approved safety goggles, gloves, ear
defenders and, if the machine generates dust, respiratory protection.
WARNING! Avoid subjecting machine/wheel to excessive strain or harsh impact. DO NOT force the workpiece against the wheel.
Failure to comply with this instruction may cause the wheel to break resulting in severe personal injury.
WARNING! DO NOT switch the machine on whilst the workpiece is in contact with the wheel. Keep all guards and holding screws in
place, tight and in good working order. A guard, or other part, that is damaged should be replaced to ensure that it will operate
properly and perform its intended function, before the machine is used. The safety guard is mandatory when the machine is used in
premises
covered by the Health & Safety at Work Act.
4.2.
GRINDING
4.2.1. All grinding should be done slowly, maintaining a controlled progression. Rather than attempting to grind the workpiece in one go,
complete the task in even, controlled stages. Never force the workpiece into the grinding wheel and remember that metals being
ground will increase in temperature quickly. DO NOT touch the workpiece close to the cut as it may be very sharp.
S erious personal injury may result if the above advice is not followed.
5. GRINDING WHEELS
WARNING! Grinding wheels used in association with this machine must be of an adequate speed rating and size.
The wheels must also be made in accordance with British Standard 4481:Part 1 1989.
DANGER! Only persons holding a grinding wheel certificate are authorised to change the grinding wheel.
DANGER! Damaged wheels are dangerous. Before each use check that wheels are secure and are not damaged, mis-shapen,
chipped or cracked in any way. Also check that the mounting washers are not deformed. Damaged wheels must be replaced
immediately as they can break without warning, resulting in personal injury.
Note: Numbers in brackets are the item numbers shown on the Parts Diagram.
5.1.
Replacing Wet Stone Wheel
5.1.1. Remove the tool rest and remove screw (66) to drain water from trough.
5.1.2. Holding the grinding wheel firmly in one hand with a rag or cloth, loosen the retaining nut (12) (it may be necessary to strike the
wrench with a soft faced hammer).
5.1.3. Remove the two mounting screws (15), pull motor/gearbox/wheels assembly forward to disengage shaft from bearing (13) and lift
assembly from trough.
5.1.4. Remove retaining nut (12) and slide wheel from shaft.
5.1.5. When installing a new wheel ensure washer (10) is placed concave side facing wheel.
5.1.6. Refit motor/gearbox/wheels assembly to trough and retain with screws (15).
5.1.7. Hold the wheel as before and tighten the nut firmly. Do not overtighten as this will cause the wheel to crack.
5.1.8. Replace tool rest and refill trough.
Note : When a new wheel has been fitted, start the machine and let it run for a short period with no load.
5.2.
Replacing Dry Stone Wheel
5.2.1. Remove the tool rest and eye shield and then the wheel cover (28) by removing screws (29).
5.2.2. Holding the grinding wheel firmly in one hand with a rag or cloth, loosen the retaining nut (27) (it may be necessary to strike the
wrench with a soft faced hammer).
5.2.3. Remove retaining nut (12) and slide wheel from shaft.
5.2.4. When installing a new wheel ensure washers (25) are positioned with concave sides facing wheel.
5.2.5. Hold the wheel as before and tighten the nut firmly. Do not overtighten as this will cause the wheel to crack.
5.2.6. Replace wheel cover, tool rest and eye shield.
Note : When a new wheel has been fitted, start the machine and let it run for a short period with no load.
5.3.
Maintenance
5.3.1. The wheels may require dressing occasionally. This must only be done by a qualified person, using the correct type and size of
dresser.
5.3.2. The dry wheel guard should be removed regularly and any dust removed.
5.3.3. Drain and replace water weekly if wet wheel is used frequently.
5.3.4. Regularly lubricate shaft via oiler (16) and at support bearing (13).
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.
Sole UK Distributor, Sealey Group,
Kempson Way, Suffolk Business Park,
Bury St. Edmunds, Suffolk,
IP32 7AR
Original Language Version
www.sealey.co.uk
01284 757500
Web
sales@sealey.co.uk
01284 703534
email
SM52 Issue: 3 - 23/11/09

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