Maintenance; General; Daily; Regularly - ESAB A6 Mastertrac Instruction Manual

GB
5

MAINTENANCE

5.1

General

Note:
All warranty undertakings given by the supplier cease to apply if the customer
attempts to rectify any faults on the machine during the warranty period.
NB! Before doing any kind of maintenance work, make sure the mains is
disconnected.
For the maintenance of the A2--A6 Process Controller (PEH), see the instruction
manual 0443 745 xxx.
5.2

Daily

Clean flux and dirt off moving parts of the welding machine.
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Check that the contact tip and all electrical cables are connected.
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Check that all bolted joints are tight and that guides and drive rollers are not
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worn or damaged.
Check the brake hub braking torque. It should not be so low, that the wire reel
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continues to rotate when wire feed is stopped and it should not be so great that
the feed rollers slip. As a guide, the braking torque for a 30 kg wire reel should
be 1,5 Nm.
To adjust the braking torque see on page 9.
5.3

Regularly

Check the wire feed motor brushes
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once every three months.
Replace when they are worn
down to 6 mm.
Eximine the slides and lubricate if
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they bind.
Inspect the wire guides, drive
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rollers and contact tip on the wire
feed unit. Replace any worn or damaged
components, (see spare parts list on page 21).
If the carriage travel becomes
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jerky, check that hte chain is correctly tensioned. Tension the chain if necessary.
To tension the chain undo the nut (*1) and turn the cam, then tighten the nut.
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