Maintenance; General; Daily; Regularly - ESAB A6 S Arc Master Instruction Manual

GB
6

MAINTENANCE

6.1

General

NB! Before doing any kind of maintenance work, make sure the mains is discon-
nected.
For the maintenance of the A2--A6 Process Controller (PEH), see the instruction
manual.
6.2

Daily

Clean flux and dirt off moving parts of the welding machine.
S
Check that the contact tip and all electric cables are connected.
S
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
S
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.
Adjusting the braking torque:
Set the locking button (2) to the
S
locked position.
Insert a screwdriver into the hub
S
springs.
Turning the springs (1) clockwise
S
reduces the braking torque.
Turning the springs anticlockwise increases the torque.
S
NOTE! Turn the springs by the same amount.
6.3

Regularly

Check the carbon brushes of the wire feed motor every three months. Replace
S
when they are worn down to 6 mm.
Check the slides and lubricate if they bind.
S
Check the wire guides, drive rollers and contact tip of the wire feed unit.
S
Replace any worn or damaged components, (see spare parts list on page 207).
ffa9d1ea
- - 75 - -