Bosch JS120 Consignes De Fonctionnement/Sécurité page 14

BM 2610033457 06-14_JS120 6/5/14 12:02 PM Page 14
CIRCLE CUTTING
Circle cuts can be made from 5" to 16-1/2" in
diameter
1. Determine the center point of the desired
circle.
2. Drill a 3/16" (5 mm) center hole 7/8" (23
mm) deep in workpiece. (For enhanced
precision, drill the hole using a drill press, if
possible).
3. Drill or plunge cut near the circle's edge,
turn saw off, and disconnect the plug from
power source.
4. Insert guide bar through a clamp, then
through the slots provided in foot, from
either side of foot (Fig. 13). (If possible,
place second clamp on bar from opposite
side of jig saw).
LOCK
KNOB
CL MP
FIG. 13
5. Remove guide pin from end of guide, push
pin through proper hole provided in guide,
then into center hole of workpiece. (When
used with a Bosch JS572 jig saw --- or the
JS180 cordless jig saw --- the holes labeled
for the JS572 should be used.) For other jig
saws, one of the other holes should be
used.
6. Measure the distance from the center of the
hole to the desired circle radius. Adjust that
measurement as necessary to account for
the width of the blade:
- When cutting a hole, cut from inside the
intended radius.
- When cutting wheels or discs, cut from the
outside the intended radius.
7. Hook clamp(s) onto footplate, and position
the guide to that adjusted radius
measurement.
8. Place lock knob(s) on proper side of
clamp(s) and securely tighten lock knob(s)
on the clamp(s) (Fig. 11).
9. Insert jig saw plug into power source, hold
the saw firmly, squeeze trigger and slowly
push the saw forward.
• Place small wedges in the cut as shown in
Fig. 14, to keep the inner circle from
spreading when near the end of the cut.
GUIDE
PIN
• Use a thick jig saw blade, such as the
Bosch T101TP or T144DP whenever
possible.
• Make sure that the jig saw orbital setting is
at 0 (zero)
• Cut slowly so the blade will stay straight in
the cut.
-14-
CIRCLE-CUTTING TIPS:
WEDGE
FIG. 14