Bosch GST 85 P Professional Instructions D'emploi page 14

2 609 931 878.book Seite 3 Donnerstag, 4. November 2004 8:06 08
Turn the rotatable top handle 1 ap-
prox. three rotations in counter-
clockwise direction.
Insert the saw blade 11 in the
stroke rod crosswise to the cutting
direction. Turn the serrated edge of
the saw blade to the cutting direc-
tion. Slightly lift the saw blade so
that the back of the saw blade
comes to rest in the groove of the guide roller 10.
Allow it to notch by pulling slightly.
Turn the rotatable top handle 1 in
clockwise direction until a snap is
heard (click).
Afterwards, push up the orange
pushbutton at the rotatable top han-
dle 1 again to the starting position.
Starting Operation
Observe correct mains voltage: The voltage of
the power source must agree with the voltage
specified on the nameplate of the machine.
Equipment marked with 230 V can also be con-
nected to 220 V.
Switching On and Off
To start the machine, press the On/Off switch 4
forward.
To switch the machine off, press the On/Off
switch 4 to the rear.
Stroke Rate Preselection
(GST 85 PE/GST 85 PAE)
The required stroke rate can be preselected (also
during operation) using the thumbwheel 2.
1 – 2 = low stroke rate
3 – 4 = medium stroke rate
5 – 6 = high stroke rate
The required stroke rate is dependent on the ma-
terial and the working conditions and can be de-
termined by a practical trial.
After working for longer periods at low stroke rate
allow the machine to cool down by running it at
maximum stroke rate and no-load for approx.
3 minutes.
14 • 2 609 931 878 • TMS • 27.10.04
Contact Protector
The contact protector 13 attached to the housing
prevents unintentional contact with the saw blade
while working and should not be removed.
Sawdust Blower Device
The sawdust blower device leads an air jet to the
saw blade. The air jet keeps sawdust from cover-
ing the cutting line during operation.
The air flow can be switched on or off with the
switch for the sawdust blowing device 6:
Sawdust blowing level I:
Low airstream, for cuts in metals
and when coolants/lubricants are
used.
Sawdust blowing level II:
Medium airstream, for cuts in mate-
rials with low chip removal rate,
e. g. hardwood.
Sawdust blowing level III:
High airstream, for cuts in materials
with high chip removal rate, e. g.
soft wood, plastic, etc.
Pendulum Action Setting
The four pendulum action settings
allow optimum adaptation of cutting
speed, cutting capacity and cutting
pattern to the material being
sawed.
The pendulum action can be adjusted in four
steps with the adjustment lever 7. Switching is
possible with the machine running:
Step 0: No pendulum action
Step I: Small pendulum action
Step II: Medium pendulum action
Step III: Large pendulum action
Recommendations:
– The more narrow and clean the cutting edge
should be, the lower the pendulum action level
should be selected (or switched off).
– For thin materials, e. g. sheet metal, switch the
pendulum action off.
– For hard materials, e. g. steel, work with low
pendulum action.
– For soft materials and when sawing in the di-
rection of the grain, work with maximum pen-
dulum action.
The optimal setting can be determined by practi-
cal testing.
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