Repair And Maintenance; Check Regularly - LORCH S Pulse XT Manual De Instrucciones

Fault
Welding power has reduced
Ground cable connector becoming hot
Wire feed unit has increased wire abrasion
Welding voltage and welding current value
blink on the V/A display when welding and/
or after welding (Hold display)
Welding voltage, welding current: Deviation
between the set values and the values meas-
ured during welding.
Tab. 4: Troubleshooting
19

Repair and maintenance

Please heed the current safety and accident
prevention regulations during all mainte-
nance and repair work.
Coolants are harmful to health if swallowed!
If coolant is swallowed accidentally, imme-
diately rinse the mouth and drink plenty
of water. Call for immediate medical assis-
tance.
If it comes into contact with the eyes, rinse them under
running water with the eyelids open for 15 minutes. Seek
medical assistance.
If it comes into contact with the skin, wash with soap and
water and rinse thoroughly.
If someone has inhaled vapour/aerosol, take the person
concerned out into the fresh air. Call a doctor.
When working with coolants, wear protective gloves and
goggles/face protection.
Use only original Lorch spare parts for mainte-
nance and repair.
Use only original Lorch LCL 30 coolant. This of-
fers adequate frost protection down to -30°C.
Take care, products from other manufacturers
may cause damage to the equipment.
Do not allow coolant to penetrate into the en-
vironment!
Dispose of the coolant in a way that is compat-
ible with the environment. Follow the regula-
tions applying in your country.
- 62 -
Possible cause
Phase missing
Insufficient ground contact at workpiece
Ground cable not correctly inserted at the
equipment
Torch faulty
The connector was not locked by turning
clockwise
The wire feed rollers do not match the wire
diameter
Incorrect contact pressure on wire feed unit
The set standard values were not achieved
and the installation overload limit was acti-
vated.
Depending on the actual welding process,
principally a deviation is possible during
short arc welding.
The machine requires a minimum of care and maintenance.
Only a few items need to be checked to ensure trouble-free
long-term operation.
19.1
Check the following points for damage before starting up
the welding machine.
Blow out the welding machine every two months. (Weld-
ing machines without dust filters)
 Switch the machine off.
 Disconnect the mains plug 25.
 Unscrew both side panels of the unit.
 Blow out the welding machine with dry, low pressure com-
 Screw the two side panels onto the machine back again.
Check the dust filter every two months. (Welding ma-
chines with dust filters, optional)
 Switch the machine off.
 Disconnect the mains plug 25.
909.2599.9-06
Repair and maintenance
Check the equipment using a different
power socket; check the supply cable and
the mains fuses
Create a good clean ground connection
Lock the ground connector at the equipment
by turning clockwise
Repair or replacement
Check
Fit the correct feed rollers
Set as described in the operating instruc-
tions
Check and if necessary, correct the set weld-
ing parameters.
None:
This is a sign of the machine's "internal
control, " stabilise the welding process and
increase the attainable quality of welding.

Check regularly

– Mains plug and cable
– Welding torch and connections
– Ground cable and connection
– Keyboard membrane and control panel
pressed air. Avoid blowing directly on the electronic com-
ponents from a short distance, to prevent damage.
Rectification
01.21