Powerplus POW5103 B ENCH GRINDER WET/DRY 250W EN - Manual (Page 6)

POW5103 EN
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 Empty the water tank by removing the plug on the underside of the tank. Make sure that
the water does not get into the motor!
8.1 General information on grinding
 Use the dry grinding stone for rough grinding and the wet grinding stone for fine grinding.
 Never grinds materials such as wood, plastic or very soft metals (e.g. lead), as they can
block the pores of grinding stones, reducing their effectiveness.
 Use dry grinding stones for soft metals and wet grinding stones for hard metals.
 Cool the item in water at regular intervals when working for extended periods.
 When grinding tools, never allow the metal to blue.
9 REPLACING GRINDING STONES
Grinding stones must be replaced when they have worn more than 40mm or if they become
damaged.
9.1 Wet grinding stone
 Empty the water tank by removing the plug (h) on the underside of the tank. Make sure
that the water does not get into the motor! Remove the water tank.
 Loosen the nut (i) and remove the outer flange (f) and the old wet grinding stone.
 Clean the flanges (f and g).
 Attach the new wet grinding stone, to tighten the grinding wheel , hold the grinding wheel
firmly by hand and tighten the nut (the thread is opposite-handed to the direction of
rotation causing automatic tightening) fit the outer flange and secure it with the nut
 Reattach the water tank and insert the plug.
9.2 Dry grinding stone
 Remove the protective shield and the spark screen. Loosen the nut (l) and remove the
outer flange (k) and the old dry grinding stone.
 Attach the new dry grinding stone, to tighten the grinding wheel , hold the grinding wheel
firmly by hand and tighten the nut (the thread is opposite-handed to the direction of
rotation causing automatic tightening) fit the outer flange and secure it with the nut.
 Replace the protective shield and the spark screen.
 Start the bench grinder and let it run freely for a few minutes to check that the stone is
fitted correctly.
10 CLEANING AND MAINTENANCE
Clean the bench grinder by wiping its exterior parts with a damp cloth. Grinding dust and
filings can be removed using a brush or compressed air.
Do not use corrosive or abrasive cleaning agents.
10.1 Lubrication
 The transmission gear for wet grinding stone must be lubricated regularly.
 Remove the water tank and the cover (m) from the gearbox (o).
 Lubricate the transmission gear (n) with plenty of ball bearing grease.
 Replace the cover and water tank.
 Do not lubricate the rest of the bench grinder.