Additional safety warnings:
17.When using depressed centre grinding wheels, be sure to use only fiberglass-reinforced wheels.
18.NEVER USE Stone Cup type wheels with this grinder. This grinder is not designed for these types of wheels and the use of such a product may result in serious personal injury.
19.Be careful not to damage the spindle, the flange (especially the installing surface) or the lock nut. Damage to these parts could result in wheel breakage.
20.Make sure the wheel is not contacting the work- piece before the switch is turned on.
21.Before using the tool on an actual workpiece, let it run for a while. Watch for vibration or wobbling that could indicate poor installation or a poorly balanced wheel.
22.Use the specified surface of the wheel to per- form the grinding.
23.Watch out for flying sparks. Hold the tool so that sparks fly away from you and other persons or flammable materials.
24.Do not leave the tool running. Operate the tool only when hand-held.
25.Do not touch the workpiece immediately after operation; it may be extremely hot and could burn your skin.
26.Always be sure that the tool is switched off and unplugged or that the battery cartridge is removed before carrying out any work on the tool.
27.Observe the instructions of the manufacturer for correct mounting and use of wheels. Handle and store wheels with care.
28.Do not use separate reducing bushings or adap- tors to adapt large hole abrasive wheels.
29.Use only flanges specified for this tool.
30.For tools intended to be fitted with threaded hole wheel, ensure that the thread in the wheel is long enough to accept the spindle length.
31.Check that the workpiece is properly supported.
32.Pay attention that the wheel continues to rotate after the tool is switched off.
33.If working place is extremely hot and humid, or badly polluted by conductive dust, use a short- circuit breaker (30 mA) to assure operator safety.
34.Do not use the tool on any materials containing asbestos.
35.Do not use water or grinding lubricant.
36.Ensure that ventilation openings are kept clear when working in dusty conditions. If it should become necessary to clear dust, first disconnect the tool from the mains supply (use non metallic objects) and avoid damaging internal parts.
37.When use cut-off wheel, always work with the dust collecting wheel guard required by domes- tic regulation.
38.Cutting discs must not be subjected to any lat- eral pressure.
SAVE THESE INSTRUCTIONS.
WARNING:
DO NOT let comfort or familiarity with product (gained from repeated use) replace strict adherence to safety rules for the subject product. MISUSE or failure to follow the safety rules stated in this instruc- tion manual may cause serious personal injury.
OPERATING INSTRUCTIONS
Installing the wheel guard (Fig. 1 & 2)
Important:
Always be sure that the tool is switched off and unplugged before installing or removing the wheel guard. Mount the wheel guard with the tab on the wheel guard band aligned with the notch on the bearing box. Then rotate the wheel guard counterclockwise. Be sure to tighten the screw securely.
Side grip (auxiliary handle) (Fig. 3)
For your own safety, always use the side grip. The side grip can be installed on either side of the tool.
Installing or removing the depressed center wheel (Fig. 4 & 5)
Important:
Always be sure that the tool is switched off and unplugged before installing or removing the wheel.
Mount the inner flange onto the spindle. Fit the wheel on over the inner flange and screw the lock nut onto the spindle. Press the shaft lock to prevent spindle rotation, then use the lock nut wrench to tighten the lock nut securely.
Warning:
Only actuate the shaft lock when the spindle is not mov- ing.
Switching ON and OFF (Fig. 6)
CAUTION:
Before plugging in the tool, always check to see that the switch actuates properly and returns to the ‘‘OFF’’ posi- tion when the rear of the switch lever is depressed.
To switch on, depress the rear of the switch lever and push it forward. The depress the front of the switch lever to lock it.
To switch off, depress the rear of the switch lever.
Operation (Fig. 7)
Keep the edge of the wheel or disc at an angle of about 15° – 30° to the workpiece surface. During the break-in period with a new wheel, do not work the tool in the B direction. It will cut into the workpiece. Once the edge of the wheel has been rounded off by use, the wheel may be worked in both A and B directions.
WARNING:
•It should never be necessary to force the tool. The weight of the tool applies adequate pressure. Forcing and excessive pressure could cause dangerous wheel breakage.
•Continued use of a worn-out wheel may result in wheel explosion and serious personal injury. Depressed cen- ter wheel should not be used after it has been worn down to 90 mm in diameter.
MAINTENANCE
CAUTION:
•Always be sure that the tool is switched off and unplugged before carrying out any work on the tool.
•Never use gasoline, benzine, thinner, alcohol or the like. Discoloration, deformation or cracks may result.
