Putting Into Operation - Bosch GHG 500-2 Operating Instructions Manual

If the cable is damaged or cut through while
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working, do not touch the cable but immediately
pull the mains plug. Never use the unit with a
damaged cable.
Do not operate the unit unattended.
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During pauses in the work, when not in use or dur-
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ing work on the unit itself (e.g., changing of the
working tools, repairs, cleaning, adjustment), pull
the mains plug.
Wear safety glasses.
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The strong heating effect (e.g. as a result of care-
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less handling) of this unit increases the danger of
fire and explosion!
When working with plastics, paints, lacquers and
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similar materials, combustible and poisonous gas-
es can occur. Do not work in the vicinity of easily
combustible gases or materials.
The heat can reach flammable parts that are locat-
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ed outside of the visible area.
Do not point the unit for a long period at one spot.
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Danger of burning! Do not touch the hot nozzle.
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Wear protective gloves.
Never direct the air stream at persons or animals.
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Never use the unit as a hair dryer.
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Do not hold the nozzle outlet too close to the work-
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piece to be heated. The resulting restriction in the
air flow can lead to overheating of the unit.
Allow the unit to cool completely before storing.
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The hot nozzle can cause damage.
Never allow children to use the unit.
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Bosch is able to ensure flawless functioning of the
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unit only if the original accessories intended for it
are used.

Putting into Operation

Ensure that the mains voltage is correct!
The voltage of the power source must agree with the
value given on the nameplate of the unit. Units desig-
nated for 230 V can also be operated with 220 V.
Switching On/Off
Switching on:
GHG 500-2: To put into operation, slide the switch 3
to position I or II.
GHG 600-3, GHG 630 DCE: To put into operation,
slide the switch 3 to position I, II or III.
Switching off:
To switch off, slide the on/off switch 3 to the stop at
position O.
GHG 600-3, GHG 630 DCE: After working for a long-
er time with high temperature, allow the unit to cool by
running in the cold air setting I before switching off.
1 609 929 E44 • (03.12) T
Thermo-Protection Switch-Off
When the heater is overloaded (e.g. as a result of re-
stricted air flow), the unit switches it off automatically,
however, the blower continues to run. When the unit
has cooled to operating temperature, the heater is
switched on again.
Setting the Air Flow and Temperature
(GHG 500-2, GHG 600-3)
The switch 3 can be set to two (GHG 500-2) or three
(GHG 600-3) blower steps. Suitable air flow and tem-
perature combinations can be selected according to
the applications.
Step GHG 500-2
I 240 l/min, 300 °C
II 450 l/min, 500 °C
III –
GHG 600-3: The cold air setting I is suitable for cool-
ing a warmed work piece or for the drying of paint. It
is also suitable for cooling the unit before placing down
or the changing of nozzles.
Setting the Air Flow (GHG 630 DCE)
The air flow can be set with the switch 3 in three steps.
In steps II and III, the temperature can be regulated
with the temperature button 4.
Step Air Flow
I 150 l/min (110 l/min) 50 °C
II 300 l/min (250 l/min) 50 ... 630 °C (600 °C)
III 500 l/min (400 l/min) 50 ... 630 °C (600 °C)
Decrease the air flow when, for example:
– The surroundings of the work piece should not be
heated more than necessary
– A light work piece could be blown away by the air
stream.
The cold air setting I is suitable for cooling a warmed
work piece or for the drying of paint. It is also suitable
for cooling the unit before placing down or the chang-
ing of nozzles.
Setting the Temperature (GHG 630 DCE)
In the blower steps II and III, the temperature can be
continuously regulated.
After switching to the blower steps II or III, the temper-
ature that was last selected as the target temperature
appears in the display 5 marked with
3 second. The target temperature applies for both
blower steps and does not change when switching
between steps II and III.
After displaying the target temperature, the actual
temperature at the nozzle outlet is shown with blinking
until the selected target temperature is reached.
The arrows
shows the actual temperature.
English–2
GHG 600-3
250 l/min, 50 °C
350 l/min, 400 °C
500 l/min, 600 °C
Temperature
then disappear and the display 5
for approx.