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Craftsman 172.417740 Owner's Manual page 8

8 amp angle grinder
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OPERATION cont.
SAFETY ON/OFF SWITCH (See Figure 7)
The On /Off switch is locked in the Off position to prevent accidental starting.
While squeezing the On/Off switch (A) with your hand, use your finger to pull back
back and then release lock-off button (B). The tool will begin to run.
To switch tool off just release your hand pressure from the On/Off switch.
The lock-on button (C) offers increased comfort in extended use applications.
To lock the tool on, depress the lock-on button (C) when the tool is running.
To stop the tool, depress and release the on /off switch.
B
Fig. 7
VARIABLE SPEED CONTROL
Adjust the thumb-wheel to increase or decrease the speed according to the material,
material thickness and disc/accessory specification to be used
(also possible during no load operation).
See Table 1 and figure below for general guidance on speed selection.
Avoid prolonged use at very low speeds as this may damage your angle grinder's motor.
The Constant Speed Control electronic circuit inside your angle grinder maintains a
nearly constant speed even when your angle grinder is under load.
Table 1
MATERIAL
Grinding ferrous metals, stone, brick, etc.
Grinding or sanding non-ferrous metals,
light grinding work
Polishing, light sanding work
13
A
C
SPEED SETTING
5-6
3-5
1-3
Dial
OPERATION cont.
TO USE THE GRINDER (See Figure 8)
ATTENTION:
!
Do not switch the grinder on while the disc is in contact with
the workpiece. Allow the disc to reach full speed before starting to grind.
Hold your angle grinder with one hand on the main handle and other hand firmly
around the auxiliary handle.
Always position the guard so that the exposed blade is positioned away from you.
Be prepared for a stream of sparks when the disc touches the metal.
For best tool control, material removal and minimum overloading, maintain an angle
between the disc and work surface of approximately 15 - 30 when grinding.
Use caution when working into corners as contact with the intersecting surface may
cause the grinder to jump or twist.
When grinding is complete allow the workpiece to cool. Do not touch the hot surface.
Fig. 8
14
15 - 30

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