When it is desired to keep the power on for a prolonged period in continuous use, the stopper can be used to keep the switch on even after the trigger has been released. (First pull the trigger, and then press the stopper.) To turn the switch off, first pull the trigger again to disengage the stopper. 4. Precaution after use Do not lay the sander down immediately after using on a place where there are many shavings, much dirt and dust until it has completely stopped revolving. CAUTION When the d

1. Assembling (Fig. 1) (1) Turn the grinder upsidedown so that the spindle is facing upward. (2) Mount the wheel washer onto the spindle. (3) Fit the protuberance of the depressed center wheel or diamond wheel onto the wheel washer. (4) Assemble the wheel nut onto the spindle. (For diamond wheel assembling, use the wheel nut with the convex side against the diamond wheel.) (5) Insert the push button to prevent rotation of the spindle, and tighten the wheel nut with accessory wrench, as shown in