Working Advice - Bosch GOF 900 CE Professional Originalbetriebsanleitung

OBJ_BUCH-203-002.book Page 26 Tuesday, December 11, 2007 8:27 AM
26 | English
For deep cuts, it is recommended to carry out
several cuts, each with little material removal.
By using the step buffer 10, the cutting process
can be divided into several steps. For this, ad-
just the desired depth-of-cut with the lowest
step of the step buffer and select the higher
steps first for the initial cuts. The clearance of
the steps can be changed by screwing the ad-
justing screws 11 further in or out.
After a trial cut, the depth-of-cut can be set ex-
actly to the desired measure by turning the ad-
justment knob 20; turn in clockwise direction to
increase the cutting depth and in anticlockwise
direction to decrease the cutting depth. The
scale 19 can be used for guidance. One full turn
corresponds with a setting range of 2,0 mm; a
graduation mark on the top edge of the scale 19
corresponds with a 0,1 mm change of the set-
ting range. The maximum setting range is
± 8 mm.
Example: The desired depth-of-cut is to be
10.0 mm; the trial cut resulted in a cutting depth
of 9.6 mm.
– Lift up the router and place e. g. a piece of
scrap wood under the guide plate 9 so that
the router bit 7 cannot touch the workpiece
when lowering it. Push the release lever 22
down and slowly lower the plunge router un-
til the depth stop 15 faces on the step buffer
10.
– Turn the scale 19 to "0" and loosen wing bolt
14.
– Turn the adjustment knob 20 by 0.4 mm/4
graduation marks (difference from set to ac-
tual value) in clockwise direction and tighten
the wing bolt 14.
– Check the selected depth-of-cut by carrying
out another trial cut.
After adjusting the depth-of-cut, do not change
the position of the slide 16 on the depth stop 15
any more, so that the actual cutting depth can
be read on the scale 18.

Working Advice

Protect router bits against shock and im-
pact.
2 610 956 208 | (11.12.07)
Direction of Feed and Routing Process
(see figure E)
The routing process must always be carried
out against the rotation direction of the
router bit 7 (up-cutting motion). When rout-
ing in the direction with the rotation of the
router (down-cutting), the machine can
break loose, eliminating control by the user.
– Adjust the required depth-of-cut; see Section
"Adjusting the Depth-of-cut".
– Place the machine with the router bit mount-
ed on the workpiece to be machined and
switch the power tool on.
– Push the release lever 22 down and slowly
lower the plunge router until the adjusted
depth-of-cut is reached. Let go of the release
lever 22 again to lock this cutting depth.
– Carry out the routing process applying uni-
form feed.
– After finishing the cutting process, guide the
plunge router upward again to the upper-
most position.
– Switch the power tool off.
Routing with Auxiliary Guide (see figure F)
For working large workpieces, e. g. when rout-
ing grooves, a board or wood strip can be fas-
tened to the workpiece as an auxiliary guide
alongside which the router can be guided. Guide
the router with the flattened side of the guide
plate along the auxiliary guide.
Shaping or Molding Applications
For shaping or molding applications without the
use of a parallel guide, the router bit must be
equipped with a pilot or a ball bearing.
– Guide the switched on power tool from the
side toward the workpiece until the pilot or
the ball bearing of the router bit faces
against the workpiece edge to be machined.
– Guide the power tool alongside the work-
piece edge with both hands, paying attention
that the router is positioned rectangular. Too
much pressure can damage the edge of the
workpiece.
Bosch Power Tools