Maintenance And Service; Maintenance And Cleaning - Bosch GST Professional 85 P Manual Original

OBJ_BUCH-431-002.book Page 21 Tuesday, April 8, 2008 11:09 AM
Place the machine with the front edge of the
base plate 7 on to the workpiece without the saw
blade 9 touching the workpiece and switch on.
For machines with stroke rate control, 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 7 fully lays on the work-
piece, continue sawing along the desired cutting
line.
Parallel Guide with Circle Cutter (Accessory)
For cuts using the parallel guide with circle cutter
20 (accessory), the thickness of the material
must not exceed a maximum of 30 mm.
Parallel Cuts (see figure F): Loosen the locking
screw 19 and slide the scale of the parallel guide
through the lead 18 in the base plate. Set the de-
sired cutting width as the scale value on the in-
side edge of the base plate. Tighten the locking
screw 19.
Circular Cuts (see figure G): Set the locking
screw 19 to the other side of the parallel guide.
Slide the scale of the parallel guide through the
lead 18 in the base plate. Drill a hole in the work-
piece centred in the section to be sawn. Insert
the centring tip 21 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 19.
Dismounting the Rotatable Top Handle
Before any work on the machine itself, pull
the mains plug.
For easier sawing in particularly tight locations,
the rotatable top handle 1 can be dismounted.
For this, press the orange pushbutton beyond
the latching point and pull off the rotatable top
handle upward at the same time.
Before assembling the rotatable top handle 1,
push up the orange pushbutton back into the
starting position again. Attach the rotatable top
handle 1 and press downward until it can be felt
to engage.
Bosch Power Tools
Coolant/Lubricant
When sawing metal, coolant/lubricant should be
applied alongside cutting line because of the ma-
terial heating up.

Maintenance and Service

Maintenance and Cleaning

Before any work on the machine itself, pull
the mains plug.
For safe and proper working, always keep
the machine and ventilation slots clean.
Clean the saw blade holder regularly. For this, re-
move 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.
In extreme working conditions, conductive
dust can accumulate in the interior of the
machine when working with metal. The pro-
tective insulation of the machine can be de-
graded. The use of a stationary extraction
system is recommended in such cases as
well as frequently blowing out the ventila-
tion slots and installing a residual current
device (RCD).
Lubricate the guide roller 8 occasionally with a
drop of oil.
Check the guide roller 8 regularly. If worn, it must
be replaced through an authorised Bosch after-
sales service agent.
If the machine should fail despite the care taken
in manufacturing and testing procedures, repair
should be carried out by an after-sales service
centre for Bosch power tools.
In all correspondence and spare parts order,
please always include the 10-digit article number
given on the type plate of the machine.
English | 21
1 609 929 N90 | (8.4.08)