Service and Maintenance
B-38
GLC 353/503/553 MC3
W Maintenance
W1 Information, intervals
Regular maintenance of the machine is essential for safe and troublefree operation. The
necessary maintenance work and repair work must therefore be carried out at regular
intervals.
This is in any case required by the safety regulations !
The maintenance of the machine mainly concerns the welding torch. The life of the gas
nozzles and current tips, which are subject to wear, can be extended considerably if they
are sprayed from time to time with torch spray, which allows easier removal of weld spatter
or prevents their adhesion altogether.
The liners must be cleaned after welding 50 - 100 kgs wire, depending on wire size. To do
this they are pulled out of the outer hose. The outer hose and the liners are blown out with
dry and clean compressed air.
Attention!
Before any work is carried out inside the power source, the machine must
be switched off and the mains plug disconnected.
After disconnecting the mains plug, wait at least two minutes until the
capacitors have reached safe values!
Daily checks
1. Please check the machine for abnormal vibration, humming noise and smell.
2. Please check the connection lugs, cables, hoses and torch for abnormal heating,
insulation faults, leaks and cleanliness!
3. Please check the coolant level in the container.
4. Please check the wire drive unit. Welding wire abrasion must be removed by using
dry compressed air, which also prevents premature wear.
The mechanical drive parts must be cleaned and greased at regular intervals.
Do not lubricate the drive rolls; this would cause the wire to slip !
5. Attention! If a filter is mounted at the front of the air entry, it must be cleaned when
dirt collects on its surface. Otherwise the duty cycle of the machine is reduced and
the temperature of the torch coolant is increased to an inadmissible range.
Please use caution!
W1 Maintenance: Information, Intervals
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