Working Advice; Maintenance And Service; Maintenance And Cleaning - Bosch PST 650 L Manual Original

Controling the Stroke Rate (PST 680 EL)
Increasing or reducing the pressure on the
On/Off switch 2 enables stepless stroke-rate
control of the switched-on machine.
The required stroke rate is dependent on the
material and the working conditions and can be
determined by a practical trial.
Reducing the stroke rate is recommended when
the saw blade engages in the material as well as
when sawing plastic and aluminium.
When the On/Off switch 2 is locked, it is not
possible to reduce the stroke rate.

Working Advice

When working small or thin work pieces,
always use a sturdy support or a saw table
(accessory).
Saw Blade Storage (see figure A)
Eight saw blades with lengths up to 110 mm can
be stored in the saw blade storage 5. Insert the
saw blades with the T-shank into the recess of
the saw blade storage intended for this. Up to
four saw blades can be placed on top of each
other.
Shut the saw blade storage and slide it to the
stop into the opening of the base plate 6.
Plunge Cutting (see figure G)
Plunge cuts may only be applied to soft
materials, such as wood, gypsum plaster
boards, etc.!
Use only short saw blades for plunge cutting.
Plunge cutting is possible only with the mitre an-
gle set at 0°.
Place the machine with the front edge of the
base plate 6 on to the workpiece without the
saw blade 11 touching the workpiece and
switch on. For machines with stroke rate con-
trol, select the maximum stroke rate. Firmly
hold the machine against the workpiece and by
tilting the machine, slowly plunge the saw blade
into the workpiece.
When the base plate 6 fully lays on the workpiece,
continue sawing along the desired cutting line.
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Parallel Guide with Circle Cutter (Accessory)
For cuts using the parallel guide with circle cut-
ter 24 (accessory), the thickness of the material
must not exceed a maximum of 30 mm.
Parallel Cuts (see figure H): Loosen the locking
screw 23 and slide the scale of the parallel guide
through the lead 22 in the base plate. Set the
desired cutting width as the scale value on the
inside edge of the base plate. Tighten the lock-
ing screw 23.
Circular Cuts (see figure I): Set the locking
screw 23 to the other side of the parallel guide.
Slide the scale of the parallel guide through the
lead 22 in the base plate. Drill a hole in the work-
piece centred in the section to be sawn. Insert
the centring tip 25 through the inside opening of
the parallel guide and into the drilled hole. Set
the radius as the scale value on the inside edge
of the base plate. Tighten the locking screw 23.
Coolant/Lubricant
When sawing metal, coolant/lubricant should be
applied alongside cutting line because of the
material heating up.

Maintenance and Service

Maintenance and Cleaning

Clean the saw blade holder regularly. For this,
remove the saw blade from the machine and
lightly tap out the machine on a level surface.
Heavy contamination of the machine can lead to
malfunctions. Therefore, do not saw materials
that produce a lot of dust from below or over-
head.
Before any work on the machine itself, pull
the mains plug.
For safe and proper working, always keep
the machine and ventilation slots clean.
1 609 929 N58 | (16.12.08)
English | 23