Bosch GHG 20-60 - Инструкция по эксплуатации - Страница 11

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11

Bosch Power Tools

1 609 92A 2MS | (14.9.16)

Selecting the Air-volume Level

With the On/Off switch 

4

 it is possible to select between two 

air-volume levels:

A reduced air-volume level may be required in certain cases, 
e. g., to avoid overheating the workpiece surroundings or to 
avoid displacing the workpiece if the air jet is too strong.

A higher air-volume level heats up the workpiece more quickly 
and the hot-air gun can be held at a greater distance from the 
workpiece.

Setting the Temperature

Infinitely variable temperature control of the air jet is possible 
with the thumbwheel 

3

.

The marked thumbwheel positions correspond with the fol-
lowing temperature ranges:

Working Advice



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

Note: 

Do not apply the nozzle 

1

 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 

2

 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 

2

, switch the 

power tool off and allow it to cool down.

Turn the heat protection collar 

2

 in anticlockwise direction to 

remove and in clockwise direction to mount again.

Placing Down the Power Tool

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

5

.



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 

6

 (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 
varnish, 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 7 (accessory) is 
essential. 

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 

8

 (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 

11

 and the welding shoe 

10

 (both 

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

9

 (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 

9

 and allow it to run into the gap so 

that a uniform bead is produced.

Shrinking (see figure E)

Mount the reduction nozzle 

11

 (accessory). Select the diam-

eter of the heat-shrinkable sleeve 

12

 (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 

13

 (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.

Hot-air level 

I

:

350 l/min

Hot-air level 

II

:

550 l/min

Thumbwheel Position

Temperature in  ° C

1

100 – 120

2

210 – 250

3

300 – 340

4

420 – 450

5

500 – 550

6

570 – 600

OBJ_BUCH-228-004.book  Page 11  Wednesday, September 14, 2016  3:02 PM