Starting Operation; Working Advice; Maintenance And Service; Maintenance And Cleaning - Bosch GHO 12V-20 Professional Manual Original

OBJ_BUCH-2967-001.book Page 16 Tuesday, June 6, 2017 10:34 AM
16 | English
The cutting depth can be set from 0–1.0 mm using the knob
1. For cutting depths greater than 1 mm the button 2 must be
pressed:
Material Planing width in Planing depth
mm
Softwood < 30
30– 40
< 20
Hardwood
20– 30
Softwood (wet) 0– 40
Plywood < 20
20– 30
< 15
Phenolic resin
faced plywood 15– 30
MDF sheets < 20
20– 30
Veneers 1
Hardwood
veneers 3– 5
Two-part filler 3– 5
Cardboard 2

Starting Operation

Inserting the battery
Insert the charged battery 5 into the battery port until it can
be felt to engage and is seated flush.
Switching On and Off
To save energy, only switch the power tool on when using it. To start the machine, first push the lock-off button for the
On/Off switch 3 and then press the On/Off switch 4 and keep
it pressed.
To switch off the machine, release the On/Off switch 4.
Note: For safety reasons, the On/Off switch 4 cannot be
locked; it must remain pressed during the entire operation.
Battery Charge-control Indication
The battery charge-control indicator 10 consists of three
green LEDs, and indicates the charge condition of the battery
for a few seconds when the On/Off switch 4 is pressed half-
way or fully.
LED
Continuous lighting 3 x green
Continuous lighting 2 x green
Continuous lighting 1 x green
Flashing light 1 x green
Temperature Dependent Overload Protection
In case of overload, the speed is reduced. Allow the machine
to cool down by running it at maximum no-load speed for ap-
prox. 30 seconds.
1 609 92A 24V | (6.6.17)

Working Advice

 Before any work on the machine itself (e. g. mainte-
nance, tool change, etc.) as well as during transport
and storage, remove the battery from the power tool.
There is danger of injury when unintentionally actuating
0 – 1.0 mm 0 – 2.0 mm
the On/Off switch.
 
Planing

–
Set the required cutting depth and attach the power tool with
 
the adjustable planer base plate 14 to the workpiece.

–
 Apply the machine to the workpiece only when

–
switched on. Otherwise there is danger of kickback when
 
the cutting tool jams in the workpiece.
 Switch the machine on and guide the machine with even feed
–
over the surface to be planed.
 
To achieve high-grade surfaces, work only with low feed and

–
apply pressure on the centre of the planer base plate.
 
When machining hard materials (e.g. hardwood) as well as

–
when utilising the maximum planer width, set only low planing
 
depths and reduce planer feed, as required.
Excessive feed reduces the surface quality and can lead to
 
rapid clogging of the chip ejector.
 
Only sharp blades achieve good cutting capacity and give the
machine longer life.
 
Beveling Edges (see figure D)
The V-groove 15 in the front planer base plate allows quick
and easy beveling of workpiece edges. For this, place the
planer with the V-groove onto the edge of the workpiece and
guide it along the edge.

Maintenance and Service

Maintenance and Cleaning

 Before any work on the machine itself (e. g. mainte-
nance, tool change, etc.) as well as during transport
and storage, remove the battery from the power tool.
There is danger of injury when unintentionally actuating
Capacity
the On/Off switch.
≥ 2/3
 For safe and proper working, always keep the machine
≥1/3
and ventilation slots clean.
< 1/3
Clean the power tool in regular intervals using compressed
Reserve air.
When the battery is no longer operative, please refer to an au-
thorised after-sales service agent for Bosch power tools.
Keep the side cutter block guard 8 clear and clean it regularly.
Groove to be used Dimension a
(mm)
V-groove 2.1 – 5.0
None 0.0 – 2.8
Bosch Power Tools