Maintenance And Cleaning - Bosch GHG 660 LCD PROFESSIONAL Bedienungsanleitung

Placing Down the Unit
For cooling of the heated unit or to have both hands
free for working, the unit can be place down in the up-
right position on the rear housing surface (see Fig.
Be especially careful when working with the
s
upright unit! There is danger of burning on the hot
nozzle and the hot air stream.
Working Examples
The letters of the following application examples refer
to the illustrations on the fold-out page.
Temperature settings given in the application exam-
ples are suggested values that, depending on the ma-
terial characteristics, can deviate. The distance be-
tween the nozzle and workpiece is dependent on the
material to be processed.
The ideal temperature should first be ascertained by
performing a test. Therefore, begin with a lower tem-
perature setting.
All application examples (except
without accessories. However, the use of the recom-
mended accessory parts simplify the work and signifi-
cantly improve the quality of the results.
Be careful when changing the nozzle, danger
s
of burning! Do not tough the hot nozzle. Allow
the unit to cool. Wear protective gloves.
Bosch stocks an extensive range of accessories (see
Bosch Accessories catalogue) which offer a wide
range of other applications.
Removing Paint/Softening Adhesives
A
Place on the wide nozzle 10. Soften the paint using
hot air and remove evenly using a spatula. Do not heat
the paint for too long since this will burn the paint,
making it more difficult to remove. The spatula should
be kept sharp and clean.
Many adhesives (e.g. stickers) become softer when
heated allowing adhesive bonds to be separated or
superfluous adhesive to be removed.
Removing Paint from Window Frames
B
Danger of glass breaking!
Use of the glass protection nozzle 11 is essential.
On profiled surfaces, paint can be removed using a
spatula and brushed off using a soft wire brush.
Shaping Plastic Tubing
C
Place on the reflector nozzle 12. To avoid kinking the
tubing, fill the tubing with sand and seal at both ends.
Heat the tubing evenly by moving it from side to side.
1 609 929 F39 • (03.10) T
).
C
) can be performed
B
English–4
Welding Plastics
D
Place on the reduction nozzle 15 and the welding shoe
14. The materials to be welded and the welding rod
13 must be made of the same material (e.g. PVC
with PVC). The seam must be clean and grease-free.
Heat the welding seam until it becomes tacky. Please
note that the temperature difference between the
tacky and liquid state of a plastic is very small. Then
feed in the welding rod 13 and allow to run into the gap
so that a uniform bead is produced.
Shrink Fitting
E
Place on the reduction nozzle 15. Select the diameter
of the heat-shrink tubing 16 according to the work
piece, for example, a cable lug.
Heat the heat-shrinkable sleeve evenly.
Defrosting Water Pipes
F
Water lines often do not differ in appear-
ance from gas lines. Gas lines are not to
be heated under any circumstances.
Place on the reflector nozzle 12. Heat the frozen zone
always from the outside to the middle.
Warm plastic pipes as well as connections between
pipe pieces especially carefully to prevent damage.
Soft Soldering
G
For point soldering, place on the reduction nozzle 15,
for the soldering of pipes, the reflector nozzle 12.
If solder without flux is used, apply soldering grease or
paste to the location to be soldered. Warm the loca-
tion to be soldered for 50–120 s depending on the
material. Apply the solder. The solder must melt from
the work piece temperature.
After the soldered location has cooled, remove the
flux.

Maintenance and Cleaning

Before any work on the unit itself, pull the mains
s
plug.
For safe and efficient working, always keep the unit
s
and the ventilation slots clean.
Cleaning the Dust Filter
Slide the cover 4 containing the dust filter to the rear
out of the housing. Blow out the dust filter (with com-
pressed air for example) or clean with a soft brush.
Replace the cover.