Maintenance; General; Daily; Periodic - ESAB A2 TF 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 Welding Control Unit (PEI), see the instruction
manual 0449 331 xxx.
5.2

Daily

Clean flux and dirt off moving parts of the welding machine.
S
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
S
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 83.
5.3

Periodic

Inspect the electrode feed unit's electrode control, drive rollers and contact tip.
S
Replace worn or damaged components.
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Inspect the slides, lubricate them if they are binding.
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Lubricate the chain.
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Tensioning the chain between the trolley's front and back axles.
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Dismantle the trolley wheels and blanks. Remove the Y flange bearing bolts.
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Tension the chain by moving the trolley's rear axle parallel in relation to the
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front axle.
Reassemble in the reverse order.
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Tensioning the chain from the trolley's front axle to the drive motor and
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gearbox.
Tension the chain by moving the drive motor and gearbox.
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