Bosch GOF Professional 900 CE Original Instructions Manual page 25

OBJ_BUCH-203-003.book Page 25 Tuesday, September 2, 2008 8:46 AM
Switching On and Off
Adjust the depth-of-cut before switching on or
off; see Section "Adjusting the Depth-of-cut".
To start the machine, press the On/Off switch
24 and keep it pressed.
To lock the pressed On/Off switch 24, press the
lock-on button 2.
To switch off the machine, release the On/Off
switch 24 or when it is locked with the lock-on
button 2, briefly press the On/Off switch 24 and
then release it.
Constant Electronic Control
Constant electronic control holds the speed
constant at no-load and under load, and ensures
uniform working performance.
Soft Starting
The electronic soft starting feature limits the
torque upon switching on and increases the
working life of the motor.
Adjusting the Depth-of-cut
(see figure D)
The adjustment of the depth-of-cut may on-
ly be carried out when the router is
switched off.
For coarse adjustment of the depth-of-cut, pro-
ceed as follows:
– Place the machine with the router bit mount-
ed on the workpiece to be machined.
– Set the fine-adjustment path to the centre
position with the adjustment knob 20. For
this, turn the adjustment knob 20 until the
marks 21 match as shown in the figure. After-
wards, set the scale 19 to "0".
21
– Set the step buffer 10 to the lowest position;
the step buffer engages noticeably.
– Loosen the wing bolt for the depth stop 14
so that the depth stop 15 can be moved free-
ly.
Bosch Power Tools
– Push the release lever 22 downward and
slowly lower the plunge router until the rout-
er bit 7 touches the surface of the workpiece.
Let go of the release lever 22 again to lock
this plunging depth.
– Push the depth stop 15 downward until it
rests on the step buffer 10. Set the slide with
the index mark 16 to the "0" position on the
scale for the depth-of-cut adjustment 18.
– Set the depth stop 15 to the required depth-
of-cut and tighten the wing bolt for the depth
stop 14. Pay attention not to misadjust the
slide with the index mark 16 again.
– Push the release lever 22 and guide the
plunge router to the uppermost position.
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.
English | 25
1 609 929 N93 | (2.9.08)