Maintenance; General; Daily; Periodic - ESAB A6 Mastertrac Tandem Instruction Manual

6 MAINTENANCE

6 MAINTENANCE
6.1

General

CAUTION!
All warranty undertakings from the supplier cease to apply if the customer attempts
any work to rectify any faults in the product during the warranty period.
NOTE!
Before doing any kind of maintenance work, make sure the mains cable is
disconnected.
For maintenance of the control unit, see separate instruction manual.
6.2

Daily

• Clean flux and dirt off moving parts.
• Check that the contact tip and all electrical cables are connected.
• Make sure all screwed joints are tightened.
• Check that guides and drive rollers are not worn or damaged.
• Check the brake hub braking torque. Tighten if the wire reel continues to rotate when
the wire feed is stopped. Loosen if 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 section "Adjusting the brake hub".
6.3

Periodic

• Check the wire feed motor brushes
once every three months. Replace
when they are worn down to 6 mm.
• Inspect the slides, lubricate them if they
are binding.
• Inspect the wire guides, drive rollers
and contact tip on the wire feed unit.
Replace any worn or damaged
components, see section "WEAR
PARTS".
• If the carriage travel becomes jerky,
check that the 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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