Maintenance And Service - Bosch GSC 2,8 Professional Original Instructions Manual

OBJ_BUCH-598-002.book Page 11 Friday, May 23, 2014 10:20 AM
Working Advice
 Before any work on the machine itself, pull the mains
plug.
Apply the power tool to the workpiece only when switched on.
Hold the power tool inclined in an angle of 15° to the surface
of the steel sheet and do not tilt it laterally.
Guide the machine evenly and with light feed in the cutting di-
rection. Excessive feed significantly reduces the service life of
the saw blade and can cause damage to the power tool.
 Wear protective gloves while working and pay particu-
lar attention to the mains cable. Take care that cut
sheet parts do not bend toward your body or the mains
cable. Sharp burrs develop at the cut steel sheet and can
cause injuries to the operator or damage the mains cable.
If required, press bending steel sheet parts away from your
body or the mains cable using gloves.
When cutting curves, make sure not to tilt the power tool lat-
erally and work with low feed rate only.
Maximum Steel Sheet Cutting Capacity
The maximum steel sheet cutting capacity d
the strength properties of the material to be cut.
The machine allows for cutting of metal sheet to the following
thicknesses:
Material Max. strength property
2
[N/mm ]
Steel 400
600
800
Aluminium 200
Adjusting Cutter Clearance a
The cutter clearance a (gap between the
cutters) depends on the sheet thickness
d to be cut.
max
a
d Cutter clearance a
max
[mm] [mm]
0.2–1.4 0.3
1.5–2.8 0.5
Bosch Power Tools
For softer or more ductile materials, the clearance a must be
decreased; for harder or more brittle materials, increased.
Loosen the fastening screw 12 for the bottom cutter. Adjust
the requested cutter clearance a with the adjustment screw
11. The upper cutter 7 and the bottom cutter 9 may not touch
each other. Check the clearance with the setting gauge 13.
Retighten the fastening screw 12 for the bottom cutter.
Adjusting Cutter Clearance b
b
Screw the adjustment screw for the upper cutter 5 in clock-
wise direction using a fitting pin. Loosen the fastening screw
for the upper cutter 8 and adjust the upper cutter 7 in such a
manner that the vertical clearance b between upper and bot-
tom cutter is 0.4 mm. Check the clearance with the setting
gauge 13.
Retighten the fastening screw 8 for the upper cutter. Screw
the adjustment screw for the upper cutter 5 in anticlockwise
direction until it faces against the upper cutter 7.
For softer or more ductile materials, the clearance b must be
decreased; for harder or more brittle materials, increased.

Maintenance and Service

depends on
Maintenance and Cleaning
max
 Before any work on the machine itself, pull the mains
plug.
 For safe and proper working, always keep the machine
d
and ventilation slots clean.
max
[mm]
Replacing the Bottom Cutter (see figure B)
2.8
Unscrew the adjustment screw 11 of the bottom cutter. Fully
2.2
unscrew the fastening screw 12 of the bottom cutter and re-
1.9
move the bottom cutter 9.
3.5
Insert a new bottom cutter 9 into the recess of the cutting
base 10. Fasten the bottom cutter with the fastening screw
12.
Check the cutter clearance a (see "Adjusting Cutter Clear-
ance a", page 11).
Replacing the Upper Cutter (see figure B)
Both sides of the upper cutter 7 can be used.
Fully unscrew the fastening screw 8 of the upper cutter and
remove the upper cutter 7.
Turn the upper cutter 7 as shown in the figure or place a new
upper cutter against the striker 6. Fasten the upper cutter
with fastening screw 8.
Check the cutter clearance b (see "Adjusting Cutter Clear-
ance b", page 11).
English | 11
For adjustment of cutter clear-
ance b, the stroke mechanism of the
upper cutter must be at the upper
dead centre point. For this, briefly
switch the power tool on and then
immediately off again. If the stroke
mechanism does not stop at the up-
per dead centre point, repeat the
process.
3 609 929 C99 | (23.5.14)