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DRIVE ROLLS AND GUIDE TUBES
After feeding every coil of wire, inspect the drive roll section. Clean the assembly as necessary. Do not use solvent to clean the drive roll assembly as it may wash the lubricant out of the bearings. The drive rolls and guide tubes are stamped with the wire sizes they will feed. If a wire size other than that stamped on the rolls is to be used, the rolls and guide tubes must be changed.
The drive rolls for 0.068 and 0.120 in. (1.7 thru
3.0mm) wire have a double set of teeth so they can be reversed for additional life. Between the two knurled rolls is a shim washer which limits the damage to the electrode if wire feeding problems occur. Drive rolls for 1/16 in. (1.6 mm) and smaller wire have no teeth and are not reversible.
CONTROL BOX
Every six months, open and inspect the control sec- tion. The accumulated dirt should be gently blown off all the electrical components. Be sure the air that is used is dry. Check all relay contacts.
WIRE DRIVE MOTOR AND GEARBOX
Every year, inspect the gearbox and coat the gear teeth with a
Every six months, check the motor brushes. Replace them if they are less than 1/4 in. (6.4 mm) long.
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GUN AND CABLE MAINTENANCE
Refer to the instructions included with the drive roll kit |
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for installation and replacement of the drive rolls on | For instructions on periodic maintenance for the weld- | |
the wire feeder. | ||
ing gun and cables, refer to the manual for your spe- | ||
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| cific model of welding gun. | |
WIRE REEL MOUNTING |
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To prolong the life of the reel shaft on the 50 to 60 lb |
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coils, periodically coat it with a thin layer of grease. No |
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maintenance to the two position brake is required. If |
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the brake shoe wears through to metal, replace the |
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brake assembly. |
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