Bosch GHO Professional 18 V-LI Original Instructions Manual page 15

OBJ_BUCH-1520-003.book Page 15 Monday, January 14, 2013 12:04 PM
The Allen key 12 required for replacement of the planer blade
is located inside the machine and should always be stored
there.
The battery is equipped with a NTC temperature control
which allows charging only within a temperature range of be-
tween 0 °C and 45 °C. A long battery service life is achieved
in this manner.
Observe the notes for disposal.
Battery Charge-control Indication (see figure B)
The three green LEDs of the battery charge-control indicator
14 indicate the charge condition of the battery 7. For safety
reasons, it is only possible to check the status of the charge
condition when the machine is at a standstill.
Press button 13 to indicate the charge condition. This is also
possible when the battery 7 is removed.
LED
Continuous lighting 3 x green
Continuous lighting 2 x green
Continuous lighting 1 x green
Flashing light 1 x green
When no LED lights up after pushing button 13, then the bat-
tery is defective and must be replaced.
Changing the Tool
 Be cautious when replacing the planer blades. Do not
grasp the planer blades by the cutting edges. Possible
danger of injury due to the sharp cutting edges of the plan-
er blades.
Use only original Bosch carbide blades (TC).
The carbide blade (TC) has 2 cutting edges and can be re-
versed. When both cutting edges are dull, the planer blade 18
must be replaced. The carbide blade (TC) may not be resharp-
ened.
Disassembling the Planer Blade(s) (see figure C)
To reverse or replace the planer blade 18, rotate the blade
drum 15 until it is parallel to the planer base plate 10.
 Loosen the two fastening screws 17 with the Allen key
12 by approx. 1 – 2 turns.
 If necessary, loosen the clamping element 16 by giving it
a light blow with a suitable tool (e.g. a wooden wedge).
 Push the planer blade 18 sidewards out of the blade
drum 15 with a piece of wood.
Assembling the Planer Blade(s) (see figure D)
The guide groove of the planer blade always ensures continu-
ous height adjustment when replacing or reversing it.
If required, clean the blade seat in the clamping element 16
and the planer blade 18.
When assembling the planer blade, ensure that it is seated
properly in the blade holder of the clamping element 16 and
aligned flush at the side edge of the rear planer base plate 10.
Afterwards tighten the 2 fastening screws 17 again with the
Allen key 12.
Bosch Power Tools
Note: Before restarting, check if the fastening screws 17 are
tightened well. Rotate the blade drum 15 by hand and ensure
that the planer blade does not graze.
Dust/Chip Extraction
 Dusts from materials such as lead-containing coatings,
some wood types, minerals and metal can be harmful to
one's health. Touching or breathing-in the dusts can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dusts, such as oak or beech dust, are considered
as carcinogenic, especially in connection with wood-treat-
ment additives (chromate, wood preservative). Materials
containing asbestos may only be worked by specialists.
– As far as possible, use a dust extraction system suitable
for the material.
– Provide for good ventilation of the working place.
Capacity
– It is recommended to wear a P2 filter-class respirator.
2/3
Observe the relevant regulations in your country for the
1/3
materials to be worked.
Clean the chip ejector 1 regularly. Use a suitable tool (e.g., a
<1/3
piece of wood, compressed air, etc.) to clean a clogged chip
Reserve
ejector.
 Do not reach into the saw dust ejector with your hands.
They could be injured by rotating parts.
To ensure optimum extraction of dust/chips, always work
with external dust extraction or a chip/dust bag.
External Dust Extraction (see figure E)
An extraction hose (Ø 35 mm) 19 (accessory), can be at-
tached on either side of the chip ejector.
Connect the vacuum hose 19 to a vacuum cleaner (accesso-
ry). An overview for connecting to various vacuum cleaners
can be found at the end of this manual.
The vacuum cleaner must be suitable for the material being
worked.
When vacuuming dry dust that is especially detrimental to
health or carcinogenic, use a special vacuum cleaner.
Integrated Dust Extraction (see figure E)
A chip/dust bag (accessory) 20 can be used for smaller jobs.
Insert the sleeve of the chip/dust bag firmly into the chip ejec-
tor 1. Empty the chip/dust bag 20 at regulary intervals to
maintain optimum dust collection.
Choice of Chip Ejector Side
With the selector lever 4, the chip ejector 1 can be switched
to right or left. Always press the selector lever 4 until it engag-
es in the end position. The selected ejection direction is indi-
cated by an arrow symbol on the selector lever 4.
Operation
Operating Modes
Adjusting the Planing Depth
With the adjustment knob 2, the planing depth can be adjust-
ed variably from 0–1.6 mm using the planing depth scale 3.
English | 15
1 609 92A 00T | (14.1.13)