Craftsman 320.17255 Manual De Operaciones página 19

SCROLLING AND ORBITAL ACTION cont.
Position 1
SCROLLING
360 ° blade
rotation in
all materials.
Use scroll
blade, 20 teeth
per inch.
Position 2
SMOOTH f
Reduced
splintering
in all materials.
Use fine wood
blade, 20 teeth !
per inch, or
smooth metal
blade, 36 teeth
per inch.
Fig. 13
Position 3
LOW
Low orbital
action in metal,
plastics,
hardwoods.
Use blades for
wood and metal
cutting with
10-12 teeth
per inch.
Position 4
MEDIUM
Medium orbital
action in metal,
plastics,
hardwoods.
Use wood
and metal
cutting blades
with 10-12 teeth
per inch.
Position 5
FAST
For maximum
orbital action
and the fastest
cutting in
plywood, soft
woods and
softer
materials
such as
wallboard.
Use wood,
metal and
wallboard
cutting blades
with
6, 8 12 teeth
per inch.
NOTE: In order to reach full orbital action, the blade MUST BE FACING
STRAIGHT FORWARD and the back of the blade must rest in the groove of the
guide rollers. The base must be all the way in the forward position. Orbital
action is not observable when the saw is free-running. The saw must be cutting
for orbital action to occur. The speed of cut is easier to see in thicker materials.
ADJUSTING / MOVING THE BASE AND BLADE GUIDE ROLLERS
FOR SCROLLING (Fig. 14, 15 and 16)
NOTE: The blade guide rollers must support the blade in all cutting operations
of the saw except when scrolling. When scrolling, the blade should rotate
freely (swivel) and should not come into contact with the blade guide rollers.
In the scrolling mode always move the base back and the blade guide rollers
up and away from the blade. The blade is released to swivel in the SCROLLING
position and if the blade is held with the guide rollers it could bend and break.
Fig. 14
Blade guide rollers support
the blade when cutting in all
cutting modes except scrolling.
®
®
Blade Blade Guide Rollers
Fig. 15
Blade guide rollers up and back
away from blade when operating
in the scrolling mode.
®
®
¢==ff
Blade Blade Guide Rollers
19