Manual Bosch GHG 20-60 (page 12 of 135) (All languages)

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12 | English

Operation

Starting operation

uPay attention to the mains voltage. The voltage of the

electricity source must agree with the specifications on

the type plate of the heat gun.

Creation of Smoke During Initial Use

A coating protects the metal surfaces from corrosion ex-

works. This protective layer evaporates during initial use.

The heat gun may display discolourations on the nozzle(3)

due to the production process. These do not count as dam-

age; the functioning of the heat gun is not affected.

Switching On

Slide the on/off switch (2) upwards.

Switching Off

Slide the on/off switch(2) downwards into the0position.

uAfter a sustained period of work at a high temperat-

ure, let the heat gun cool down before switching off.

To do this, allow it to run on the lowest temperature

setting for a short while.

Regulating airflow

With the on/off switch(2), you can adjust the airflow for

both work stages:

Work stage l/min °C

150–300 50–630

300–500 50–630

Reduce the airflow, for instance, if the area surrounding a

workpiece cannot tolerate excessive heat or if a workpiece is

light enough that the airflow might move it.

Controlling temperature

You can control the temperature of the airflow using the

thumbwheel (5) .

The positions marked on the thumbwheel correspond to the

following temperature ranges:

Thumbwheel position Temperature in °C

1 50–80

2 130–160

3 210–240

4 280–310

5 340–370

6 410–440

7 480–510

8 550–580

9 620–630

Thumbwheel position 1 is suitable for cooling down a heated

workpiece or for drying paint. It is also suitable for cooling

down the heat gun before switching it off or changing the at-

tachment nozzles.

Practical advice

uPull the mains plug out of the plug socket before car-

rying out any work on the heat gun.

Note: Do not position the nozzle(3) too close to the work-

piece that you are using the power tool on. The resulting air

blockage can lead to the heat gun overheating.

Removing the heat shield

When working in particularly tight spaces, you can remove

the heat shield(4) by turning it.

uCaution: Nozzle is hot! Working without the heat shield

increases the risk of burns.

To remove or put on the heat shield(4), switch the heat gun

off and let it cool down.

To cool down faster, you can also let the heat gun run briefly

at the lowest temperature that can be set.

Turning off the heat gun

Put down the heat gun on the storage surfaces(1) to let it

cool down, or to keep both hands free to work.

uBe especially careful when working with the turned-

off heat gun! The heat from the nozzle or the air flow can

cause burns.

Position the heat gun on an even, stable surface. Ensure that

it cannot tip over. Secure the cable outside your work area

so that it cannot knock down or pull down the heat gun.

Switch the heat gun off if not used for a sustained period of

time, and disconnect from the mains.

Example applications (seefiguresA–G)

Images of example applications can be found on the graphics

pages.

The distance between the nozzle and the workpiece de-

pends on the material you are working on (metal, plastic

etc.) and the intended working method.

The optimum temperature for each application can be de-

termined by a practical test.

Always test the amount of air and temperature first. Start at

a greater distance and a lower power setting. Then adjust

the distance and power setting according to requirements.

If you are unsure what material you are working on or what

effect the hot air might have on it, first test the effect on a

concealed area.

All example applications apart from "Stripping paint from

window frames" can be carried out without the use of ac-

cessories. However, using the recommended accessories

will simplify the work and considerably increase the quality

of the result.

You can use all nozzles that are available as accessories

fromBosch with this heat gun.

uTake care when changing the nozzle. Do not touch the

nozzle while it is hot. Let the heat gun cool down and

wear protective gloves during changeover. The heat

from the nozzle can cause burns.

To cool down faster, you can also let the heat gun run briefly

at the lowest temperature that can be set.

1 609 92A 7NF | (28.04.2022) Bosch Power Tools

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Bosch GHG 20-60 Manual

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