Bosch 1615 Instruction Manual page 7

far as it will go, and then back the shank out until
the cutters are approximately 1/8" to 1/4" away
from the collet nut face. With the bit inserted
and the spindle lock fully engaged, firmly tighten
the collet chuck assembly in a clockwise direc-
tion with the 27mm wrench. To avoid damage,
never tighten the collet chuck unless a bit of the
proper shank size is inserted.
CAUTION!
To minimize run-out and ensure
proper gripping, the bit should be inserted into
the collet as far as possible, and never less than
5/8".
CAUTION!
Do not use router bits greater
than 2-5/8" in diameter as they will not fit
through the base casting.
Removing the Router Bit
To remove bit, use the spindle lock and wrench
as described above, and turn the collet chuck
assembly 7 in a counter-clockwise direction.
Once the collet chuck assembly is loosened,
continue to turn the collet chuck until it pulls the
collet free from its taper, and the 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, occa-
sionally blow out the collet chuck with com-
pressed air, and clean the taper in the armature
assembly shaft with a tissue or fine brush. The
collet chuck is made up of three component
parts as illustrated; check to see that the retain-
ing ring 15 is properly located around the collet
16 and seated in the in-
ner groove of the collet
chuck nut 17 and lightly
thread the collet chuck
back onto the armature
shaft. Replace worn or
damaged collet chucks
immediately.
Plunge Lock/Release Lever
To release the plunge lock/release lever 13
grasp the router handles firmly with both hands
BM 3609929671 1/95
and press the lever with the thumb of the left
hand. The motor may then be raised or lowered
to the desired position. The plunge lock/release
lever is spring-loaded, and will hold the router
motor in position when pressure on the lever is
released. When plunging, always apply uni-
form firm pressure to both handles to avoid
cocking the motor on the posts.
The depth indicator rod 1 and the revolving
depth turret 5 are used to control cutting depth
as follows;
With the bit installed, gently lower the motor
until the tip of the router bit just contacts the
level surface the router is sitting on. This is the
"zero" position, from which further depth ad-
justments can be accurately made. To set a
desired depth of cut, rotate depth turret until the
lowest step is aligned with the depth indicator
rod. Loosen depth indicator lock/release knob
3 and lower the depth indicator rod until it
contacts the lowest step of the turret. The read-
ing of the red indicator line along the depth
indicator scale 2 now indicates the point at
which the bit just contacts the work, and is used
as a reference point to set the desired depth of
cut.
EXAMPLE: With the bit just contacting the
work surface, depth indicator rod 2 reads 3/4"
with the tip of the rod in contact with the turret.
To achieve a 1/2" depth of cut, loosen knob and
move the rod upward until the red line indicates
1 1/4", and tighten knob. Plunging the router
until the depth rodcontacts the depth turret will
now move the bit into the workpiece 1/2". To be
certain that your settings are accurate, you may
want to make test cuts in scrap material before
beginning work.
15
It is possible to make progressively deeper cuts
16
by starting with a higher flat on the depth turret
7
and rotating the turret to progressively lower
stops until the final cutting depth is reached.
17
The threaded guide rod 9 is fitted with three stop
nuts 6. When not in use, these nuts should be
snugly seated at the top and bottom of the rod so
that they do not interfere with the plunge action.
7
7
Indicator Rod and
Revolving Depth Turret
Threaded Guide Rod
12/7/98, 11:56 AM