Maintenance And Service; Maintenance And Cleaning; After-Sales Service And Application Service - Bosch GNA 18V-16 Professional Notice Originale

OBJ_BUCH-3140-001.book Page 12 Tuesday, July 11, 2017 12:46 PM
12 | English
The machine operates more quietly when it is raised slightly
during cutting. If the punch should become wedged during
cutting, switch the machine off, relubricate the punch and re-
lease the tension of the steel sheet. Do not exert force, other-
wise the punch and the die will become damaged.
Maximum Steel Sheet Cutting Capacity
The maximum steel sheet cutting capacity d
the strength properties of the material to be cut.
The machine allows for straight and deformation-free cutting
of metal sheets to the following thicknesses:
Material Max. strength property
2
[N/mm ]
Steel 400
600
800
Aluminium 200
Lubricating/Cooling the Punch
To increase the service life of the punch 10, you should use a
lubricant with good cooling function, e.g. cutting oil
2 607 001 409.
Apply a trail of lubricant beads onto the top side of the metal
sheet alongside the intended cutting line.
Cutting along a Cutting Mark or with a Guide
Straight cuts are carried out easier when the machine is guid-
ed alongside a rule.
Contours can be cut by guiding the machine along a template.
For inside cuts, pre-drilling a hole with a diameter of 21 mm is
necessary.
Temperature Dependent Overload Protection
If used in accordance with its intended use, the power tool
cannot be overloaded. If the power tool is overloaded or not
kept within the permitted battery temperature range, the
stroke rate is reduced or the power tool switches off. When
the stroke rate is reduced, the power tool will not run at full
stroke rate again until the permitted battery temperature has
been reached. If it automatically shuts down, switch the pow-
er tool off, allow the battery to cool down, then switch the
power tool back on.

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
the On/Off switch.
 For safe and proper working, always keep the machine
and ventilation slots clean.
Clean and lubricate the punch 10 and die 11 every 3 operat-
ing hours.
1 609 92A 3U7 | (11.7.17)
Change the punch and die in good time when worn. Only
sharp tools produce a good cutting quality and make the ma-
chine last longer.
The punch 10 and the die 11 may not be reground.
Changing the Die
Unscrew the knurled screw 13 of the die holder 9. Take out
depends on
the die 11.
max
Il necessary, clean the die holder 9.
Put a new, well greased die 11 into the die holder. Pay atten-
tion to the alignment of the flat side.
Screw the knurled screw 13 with attached rubber ring 12
d
max
back on. Use a hex key to tighten the screw against the resist-
[mm]
ance of the rubber ring (3–4 Nm).
1.6
Changing the Punch
1.0
Loosen the screw 4 and pull the die holder und 9 completely
0.7
out of the housing.
2.0
Slide the punch 10 sideways out of the mounting and pull it
out in a downward motion.
Put a new, well greased punch 10 in the groove of the mount-
ing and centre it.
Push the die holder 9 with caution over the punch 10 back
into the housing. Turn the die holder into one of the three pos-
sible positions (see "Changing the Cutting Direction",
page 11). Tighten the screw 4.

After-sales Service and Application Service

Our after-sales service responds to your questions concern-
ing maintenance and repair of your product as well as spare
parts. Exploded views and information on spare parts can
also be found under:
www.bosch-pt.com
Bosch's application service team will gladly answer questions
concerning our products and their accessories.
In all correspondence and spare parts orders, please always
include the 10-digit article number given on the nameplate of
the product.
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham
Uxbridge
UB 9 5HJ
At www.bosch-pt.co.uk you can order spare parts or arrange
the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
E-Mail: boschservicecentre@bosch.com
Ireland
Origo Ltd.
Unit 23 Magna Drive
Magna Business Park
City West
Dublin 24
Tel. Service: (01) 4666700
Fax: (01) 4666888
Bosch Power Tools