Bosch 1619EVS Operating Instructions - Page 8

BM2610995777 10/03 10/7/03 4:51 PM Page 8 Assembly SELECTING BITS A wide assortment of router bits with different profiles are available as accessories. Use 1/2" shank whenever possible, and only use good quality bits. ! WARNING To prevent personal injury, always remove the plug from power source before removing or installing bits or accessories. INSTALLING A ROUTER BIT 1. Lay router on its side with the flat side of base resting on the bench. 2. Press spindle lock to prevent rotation of collet chuck. NOTE: it may be necessary to rotate collet nut to engage spindle lock (Fig. 3). 3. Next, use the collet wrench to loosen the collet chuck assembly in counter-clockwise direction (viewed from bottom of router). 4. Insert the shank of the router bit into the collet chuck assembly as far as it will go, then back the shank out until the cutters are approximately 1/8" to 1/4" away from the collet nut face. 5. With the router bit inserted and the spindle lock engaged, use the collet wrench to firmly tighten the collet chuck assembly in a clockwise direction (viewed from bottom of router). To ensure proper gripping of the router bit and minimize run-out, the shank of the router bit must be inserted at least 5/8". ! WARNING When the templet guide adapter has been removed from base, do not use router bits greater than 2" in diameter as they will not fit through the sub-base. For use with larger bits, see "Preparation for use with Bosch Router Table" on page 16. ! CAUTION To prevent damage to tool, do not tighten collet without a bit. NOTE: The bit shank and chuck should be clean and free of dust, wood, residue and grease before assembling. REMOVING THE ROUTER BIT 1. Press spindle lock to prevent rotation of collet chuck, and turn the collet chuck assembly in a counter-clockwise direction. 2. Once the collet chuck assembly is loosened, continue to turn the collet chuck assembly until it pulls the collet free from its taper, and the router bit can be removed. NOTE: The collet chuck is self-extracting; it is NOT necessary to strike the collet chuck to free the router bit. COLLET CHUCK CARE With the router bit removed, continue to turn the collet chuck counter-clockwise until it is free of the shaft. To assure a firm grip, occasionally blow out the collet chuck with FIG. 4 compressed air, and clean the taper in the armature assembly COLLET shaft with a tissue or fine brush. The collet chuck is made up of COLLET NUT two component parts COLLET CHUCK that snap together (Fig. 4); check to see that the collet is properly seated in the collet chuck nut and lightly thread the collet chuck back onto the armature shaft. Replace worn or damaged collet chucks immediately. FIG. 3 WRENCH SHANK BIT COLLET CHUCK BASE SPINDLE LOCK -8-