Working Advice - Bosch GML 20 Professional Manual Original

OBJ_BUCH-1181-003.book Page 18 Friday, February 20, 2015 10:58 AM
18 | English
The 12 V connection socket is protected by a fuse 32. When
no voltage is given after connecting an external device, disen-
gage locking latch 8 and open the digital media bay flap 9. Un-
screw the fuse cap 31 and check if the inserted fuse 32 has
blown. If the fuse has blown, insert a new fine-wire fuse
(5 x 20 mm, 250 V max. voltage, 1 A rated current and quick-
acting tripping characteristic). Screw on and tighten fuse cap
31 again.
Note: Use only 1 A fuses for a max. voltage of 250 V ("250V
1A FUSE FOR 12V OUTLET"). When using other fuses, the
construction site radio can become damaged.
The 12 V connection is also protected with an internal ther-
mal fuse, which is blown/actuated when overheated. The
fuse is automatically reset after the construction site radio
has cooled down.
After removing the external plug, reattach the protective cap
of the 12 V socket outlet 29 to protect against dirt/debris.
AC Connection ("Power Outlets")
(not for article number 3 601 D29 760)
Further external electrical devices/tools can be operated via
the AC outlets. The socket outlets can vary in consideration of
country-specific standards.
The total maximum permitted current consumption of all con-
nected electrical devices/tools must not exceed the value in
the following table (also see the labeling on the housing under
the outlet cover 4):
Article number Total max. current consumption
(in A)
3 601 D29 700 15
3 601 D29 730 9
3 601 D29 770 12
3 601 D29 7W0 15
3 601 D29 7X0 9
Open one of the AC outlet covers 4 and insert the plug of an
external electrical device into a socket outlet 5 of the con-
struction site radio.
Time Indication
The construction site radio is equipped with a time indication
with separate power supply. When back-up batteries with suf-
ficient capacity are inserted in the back-up battery compart-
ment (see "Inserting/Replacing the Back-up Battery",
page 15), the time can be stored even when the construction
site radio is disconnected from the AC power supply or the
battery.
Setting the Time
– To set the time, press and hold the "Clock" button 18 until
the hours indication flashes in the time indication display n.
– Press the "Seek +" button 21 or the "– Seek" button 23
until the correct hour setting is indicated.
– Press the "Clock" button again, so that the minutes indica-
tion flashes in the time indication display n.
– Press the " Seek +" button 21 or the "– Seek" button 23
until the correct minute setting is indicated.
– Press the "Clock" button a third time to store the time set-
ting.
1 609 92A 119 | (20.2.15)
Energy Saving Mode
To save energy, you can switch the time indication in display
27 off.
For this, press and hold the On/Off button 26 when switching
off audio operation (see "Switching Audio Operation On/Off",
page 16), until there is no indication on the display.
To switch the time indication on again, press the On/Off but-
ton 26 once.

Working Advice

Recommendations for Optimal Handling of the Battery
Protect the battery against moisture and water.
Store the battery only within a temperature range between
–20 °C and 50 °C. As an example, do not leave the battery in
the car in summer.
A significantly reduced working period after charging indi-
cates that the battery is used and must be replaced.
Observe the notes for disposal.
Troubleshooting – Causes and Corrective
Measures
Cause Corrective Measure
Construction site radio inoperative
No power supply Properly insert mains plug or
battery (completely)
Construction site radio too Wait until the construction
warm or too cold site radio has reached oper-
ating temperature
Construction site radio inoperative on AC power supply
Mains plug or cord defective Check mains plug and cable
and have repaired as re-
quired
Construction site radio inoperative on DC power supply
Battery contacts Clean the battery contacts
contaminated (e.g. by inserting and remov-
ing the battery several times)
or replace the battery
Battery pack defective Replace the battery
Battery too warm or too Wait until the battery has
cold (temperature warning reached operating tempera-
indicator k lit) ture
Power supply to external devices inoperative
Mains plug not plugged-in Plug mains plug in
(completely)
12 V power supply inoperative
No fuse 32 inserted Insert fuse 32
Fuse 32 blown Replace fuse 32
Internal thermal fuse Remove external device and
blown/actuated allow construction site radio
to cool down
Bosch Power Tools