Bosch Professional GOP 14,4 Original Instructions Manual page 18

OBJ_BUCH-1808-001.book Page 17 Friday, May 31, 2013 9:29 AM
To remove the sanding sheet 13, grasp it at one of the tips and
pull it off from the sanding plate 12.
You can use all sanding sheets, fleece pads/polishing cloth
pads of the Delta 93 mm series of Bosch accessory program.
Selecting the Sanding Sheet
Depending on the material to be worked and the required rate of material removal, different sanding sheets are available:
Sanding disc Material
– All wooden materials
(e.g., hardwood, soft-
wood, chipboard, build-
ing board)
– Metal materials
– Paint
– Varnish
– Filling compound
– Filler
Dust/Chip Extraction
 Dusts from materials such as lead-containing coatings,
some wood types, minerals and metal can be harmful to
one's health. Touching or breathing-in the dusts can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dusts, such as oak or beech dust, are considered
as carcinogenic, especially in connection with wood-treat-
ment additives (chromate, wood preservative). Materials
containing asbestos may only be worked by specialists.
– As far as possible, use a dust extraction system suitable
for the material.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the
materials to be worked.
 Prevent dust accumulation at the workplace. Dusts can
easily ignite.
Connecting the Dust Extraction (see figure A)
For sanding, always connect the dust extraction.
Remove the application tool/accessory when mounting the
dust extraction 17 (accessory).
If required, assemble the parts of the dust extraction 17 as
shown in the figure. Position the assembled dust extraction
onto the machine via the tool holder 9. Turn the dust extrac-
tion in such a manner that the cams of the dust extraction en-
gage into the corresponding recesses on the housing. Fasten
the dust extraction to the machine with the retaining clip 15
as shown in the figure.
Bosch Power Tools
Sanding accessories, such as fleece pads/polishing cloth
pads, are attached to the sanding plate in the same manner.
Application
For coarse-sanding, e.g. of rough, unplaned beams and
boards
For face sanding and planing small irregularities
For finish and fine sanding of wood
For sanding off paint
For sanding primer (e.g., for removing brush dashes, drops
of paint and paint run)
For final sanding of primers before coating
Pay attention that the felt ring 14 is undamaged and faces
tightly against the sanding plate 12. Replace a damage felt
ring immediately.
Depending on the machine model, place a vacuum hose 18
(accessory) either directly onto the vacuum connection 16 or
cut off the old hose end, screw the extraction adapter 19 (ac-
cessory) onto the hose end and insert it directly into the vac-
uum connection 16. Connect the vacuum hose 18 with a vac-
uum cleaner (accessory). An overview for the connection of
various vacuum cleaners can be found at the end of these in-
structions.
The vacuum cleaner must be suitable for the material being
worked.
When vacuuming dry dust that is especially detrimental to
health or carcinogenic, use a special vacuum cleaner.
Operation
Starting Operation
Inserting the battery
 Use only original Bosch lithium ion batteries with the
voltage listed on the nameplate of your power tool. Using
other batteries can lead to injuries and pose a fire hazard.
Note: Use of batteries not suitable for the machine can lead to
malfunctions of or cause damage to the power tool.
Insert the charged battery pack 5 from the rear into the base
of the power tool. Press the battery pack completely into the
base until the red stripe can no longer be seen and the battery
pack is securely locked.
English | 17
Grain size
coarse 40
60
medium 80
100
120
fine 180
240
320
400
coarse 40
60
medium 80
100
120
fine 180
240
320
400
2 609 140 973 | (31.5.13)