Bosch GHG 660 LCD - Инструкция по эксплуатации - Страница 15

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15

Bosch Power Tools

1 609 92A 0LZ | (14.3.14)

As soon as the settings of a program have been changed, the 

 symbol flashes in the left top of the display. Once the re-

quested air flow and temperature are set, press the save but-
ton 

10

 until the 

 symbol in the display goes out. The set val-

ues are now stored under the program number indicated in 
the display.

Normal Operation

To switch from programming operation to normal operation, 
press the program-selection button 

6

 as often as required un-

til no program number is indicated above the temperature in 
the display. The air flow and temperature can be changed an-
ytime with the air-flow control button 

8

 and the temperature-

control button 

9

.

Under the following conditions, the values for air flow and 
temperature set in normal operation will remain stored:
– When changing to programming operation,
– When changing to the cool-air stage,
– When switching the power tool off.

Working Advice



Before any work on the machine itself, pull the mains 
plug.

Note: 

Do not apply the nozzle 

4

 too close to the workpiece 

being worked. The hot air build-up can lead to overheating of 
the power tool.

Removing the Heat Protection

The heat protection collar 

5

 can be removed when working at 

particularly hard-to-reach locations.



Be careful of the hot nozzle! 

Increased danger of burning 

exists when working without the heat protection collar.

To remove or mount the heat protection collar 

5

, switch the 

power tool off and allow it to cool down.

To cool down the power tool more quickly, you can operate it 
for a few moments in the cool-air stage.

Turn the heat protection collar 

5

 in anticlockwise direction to 

remove and in clockwise direction to mount again.

Placing Down the Power Tool (see figure C)

To cool down the power tool or have both hands free, place it 
down on the standing surface 

1

.



Be especially careful when working with the placed 
down power tool! 

There is danger of burning oneself on 

the hot nozzle or on the hot air jet.

Work Examples

The illustrations of the work examples can be found on the 
fold-out pages.

The temperature settings in the work examples are reference 
values that can vary, depending on the material characteris-
tics. The distance between the nozzle and the workpiece de-
pends on the material to be worked.

The optimal temperature for the respective application can be 
determined by practical testing. Always start with a low tem-
perature setting.

All application examples can be performed without accesso-
ries except for “Removing Varnish/Paint from Windows”. 

However, the use of recommended accessories simplifies the 
work and significantly improves the quality of the result.



Be careful when changing the nozzle! Do not touch the 
hot nozzle. Allow the power tool to cool down and wear 
protective gloves while changing the nozzle. 

Danger of 

burning oneself on the hot nozzle.

Removing Varnish/Softening Adhesives (see figure A)

Mount the wide jet nozzle 

11

 (accessory). Briefly soften the 

varnish applying hot air and remove it using a sharp, clean 
scraper or putty knife. Applying heat too long will burn the var-
nish, making it more difficult to remove.

Many adhesives (e. g. of stickers) become soft when heated. 
Heated adhesives allow for bonds to be separated or exces-
sive adhesive to be removed.

Removing Varnish/Paint from Windows (see figure B)



Use of the glass protection nozzle 12 (accessory) is es-
sential. 

Danger of glass breaking.

On profiled surfaces, varnish can be removed using an appro-
priately fitting spatula and brushed off with a soft wire brush.

Shaping Plastic Tubing (see figure C)

Mount the reflector nozzle 

13

 (accessory). To avoid kinking of 

the tubing, fill the tubing with sand and plug both ends. Heat 
the tubing evenly by by applying the heat from side to side.

Welding Plastics (see figure D)

Mount the reduction nozzle 

16

 and the welding shoe 

15

 (both 

accessories). The workpieces to be welded and the welding 
rod 

14

 (accessory) must be of the same material (e. g. both of 

PVC). The seam must be clean and grease-free.

Carefully heat up the seam location until it becomes doughy. 
Please note that the temperature difference between the 
doughy and liquid state of plastic is low.

Feed in the welding rod 

14

 and allow it to run into the gap so 

that a uniform bead is produced.

Shrinking (see figure E)

Mount the reduction nozzle 

16

 (accessory). Select the diam-

eter of the heat-shrinkable sleeve 

17

 (accessory) according 

to the workpiece (e. g. a cable lug). Heat the heat-shrinkable 
sleeve evenly.

Defrosting Water Pipes (see figure F)



Before heating pipes, check to make sure that it is actu-
ally a water pipe. 

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 angle nozzle 

18

 (accessory). Heat the frozen 

zone always from the outside to the middle.

Heat up plastic pipes as well as connections between pipe 
pieces especially careful to prevent damage.

Soft Soldering (see figure G)

For point soldering, place on the reduction nozzle 

16

, for the 

soldering of pipes/tubing, place on the reflector nozzle 

13

(both accessories).

If solder without flux is used, apply soldering grease or paste 
to the location to be soldered. Warm the location to be sol-

OBJ_BUCH-485-006.book  Page 15  Friday, March 14, 2014  9:12 AM