WEN 4256 Bench Grinder Manual - Manual (Page 13)

13
Maintenance
Warning: For your own safety, turn switch “OFF” and remove plug from power source outlet
before adjusting and maintaining your bench grinder. If power cord is worn, cut or damaged in
any way, have it replaced immediately.
1. Regularly check the tool and use a soft brush to remove accumulated dust. Wear safety goggles to
protect your eyes while cleaning.
2. If the body of the grinder needs cleaning, wipe it down with a soft, damp cloth. A mild detergent can be
used. Do not use alcohol, petrol or other similar cleaning agents. Do not make contact with the grinding
wheels with any damp cloth.
3. Always make sure the eye shields are transparent and not blocking the view of the grinding wheel.
4. In normal use, grinding wheels may become cracked, grooved, rounded at the edges, chipped, out of
true or loaded with foreign material. Cracked wheels should be replaced IMMEDIATELY. While any
of the other conditions can be remedied with a dressing tool (included), new wheels sometimes require
dressing to make them round.
5. If you must replace a wheel be sure to obtain one with a safe rated speed at least as high as the “NO
LOAD” RPM marked on your grinder’s nameplate. Replacement wheels must have a 1/2 in. (12.7 mm)
center hole, 6 in. (150 mm) diameter and should be a maximum of 5/8 in. (20 mm) wide. Test new
wheels for cracks and maintain the existing sequence of retaining hardware. Be sure the tool is
unplugged before attempting repairs.
Caution: Never use caustic agents to clean the plastic parts of the tool.
Caution: Water must never come into contact with the grinder.
Caution: The use of any other accessories is not recommended and may result in serious injury.