Bosch GWS10-450 Operating/Safety Instructions Manual page 13

Lock Nut and Backing Flange
Your tool is equipped with a threaded
spindle for mounting ac ces sories. Always
use the supplied lock nut (and backing
flange) that has same thread size as
spindle. Backing flange is keyed.
Disc Grinding Wheel
Assembly
Disconnect tool from power source. Be sure
that wheel guard is in place for grinding.
Place BACKING FLANGE and GRINDING
WHEEL on the spindle.
Thread on the lock nut and tighten it using
the supplied wrench, while holding the
TO REMOVE: Reverse procedure.
spindle lock (Fig. 5).
WHEN USING SPIN-ON WHEELS
Follow steps 1 & 2, then thread wheel
directly onto spindle without using the
TO REMOVE: Reverse procedure.
supplied flanges.
All parts of a spin-on wheel must be within
lip of grinding guard (Fig. 6). If spin-on
wheel is past lip of guard, do not use that
wheel as it does not fit on this grinder.
The tool will vibrate excessively and may
cause loss of control and the accessory may
burst.
Do not use accessories
that run eccentrically.
Assembly
Type 27
Grinding
Wheel
Fig. 6
Lip of Guard
-13-
Spindle
Type 27
Wheel
Guard
Backing
Flange
Lock
Nut
Spindle
Backing
Flange
Lock Nut
Grinding Wheel
Spin-On Wheel
Fig. 5
Type 27
Spin-on
Grinding
Wheel
Type 27