©
2004
GB
Page 18
Bench grinder
QSM
Version 1.1
29 June 2005
Maintenance
quantum
M A S C H I N E N - G E R M A N Y
5.2.1
Changing the grinding wheels
The grinding wheel must be replaced whenever the distance between the external diameter of
the wheel and the edge of the grinding wheel cover is greater than 6 mm.
WARNING!
Before assembly check the grinding wheels for damage and cracks.
If this type of defect is observed in a new grinding wheel, it must not be installed under
any circumstances.
You can check for small defects in the grinding wheel by removing it and knocking it gently. A
low-pitched sound can be heard in damaged wheels.
“Disconnecting the bench grinder and
making it safe“ on page 10
Make sure the bench grinder cannot be
connected without authorisation.
Loosen the three securing screws of the
protective cover.
Illustr.5-1: Protective cover
Loosen the nut on the shaft and remove
the securing disc.
Remove the grinding wheel from the
drive shaft.
Illustr.5-2: Shaft nut
Make sure that the counter-disc is cor-
rectly positioned on the shaft.
Place the new wheel on the shaft and
secure it using the securing disc and the
shaft nut.
Illustr.5-3: Drive shaft
ATTENTION!
Tighten the shaft nut only by hand.
Fit the protective cover and re-adjust the protective cover.
Check the adjustment and position of the transparent spark-guard and the tool-support.
Securing screws
Securing disc
Shaft nut
Protective cover for
adjusting device
Counter-Disc
Drive shaft
