© ESAB AB2011
- 36 -
bg20e1
Welding torch
S
Cleaning and replacement of the welding torch's wear parts should take place
at regular intervals in order to achieve trouble-free wire feed. Blow the wire
guide clean regularly and clean the contact tip.
12.1
Daily
S
Check that all cables and hoses are undamaged and that there are no kinks in them.
S
Check that the gas nozzle is free from defects and suitable for the work in question.
S
Check that the shielding gas flows evenly and without restriction.
S
Check that the electrode is undamaged and that the electrode has been ground
to the correct angle.
ET 17, ET 17V is designed and tested in accordance with the international and European
standards IEC 60974-7 and EN 60974-7 . It is the obligation of the service unit which
has carried out the service or repair work to make sure that the product still conforms to
the said standard.
13
FAULT-TRACING
Please also read the operating instructions for the welding components, e.g. power
source.
If the measures described below are not successful, please consult your dealer or
the manufacturer.
Problem
Cause
Solution
The arc does not strike
S
Cable or contact is poor.
S
Torch electrode is badly
oxidised.
S
There are impurities in the
shielding gas (moisture, air).
S
The electrode used is too large
or stubby at low current
S
Check the cable and contact.
S
Regrind along the length of the
electrode.
S
Flush clean with gas.
S
Replace with a smaller electrode
No trigger function
S
Control cable interrupted/faulty.
S
Check/repair.
Gas shielding is poor
S
There are impurities in the
shielding gas (moisture, air).
S
There are impurities in the base
material (rust, lubricant).
S
Insufficient or total lack of
shielding gas.
S
It is too draughty at the welding
site.
S
Welding spray has fastened on
the gas lens or the gas hood.
S
Flush clean with gas.
S
Clean the base material.
S
Check contents of the gas
bottle/hoses and the pressure
setting.
S
Shield the welding area with
protective screens.
S
Clean or replace.
GB
Summary of Contents for ET 17
Page 156: ... ESAB AB2011 156 bg20w1 ...
