Instruction Manual
Page 20
10.0
Maintenance
CHAPTER 9
ACCESSORIES
The Miller Weldmaster T3 has certain items that need maintained to keep the machine running as
effective as possible. The T3 has three chains which are used to drive the weld rollers and travel roller
on the machine. Although not high maintenance items, chains should be inspected every 3 months
to ensure there is not excessive corrosion, rust, or dirt. Also inspect for any looseness in the chain,
sprockets, or gears. If needed, lubricate chains and gears once every 3 months with 80-90w gear oil.
1. Before starting inspections or maintenance of any kind the power disconnect and air valve must be
turned to the off position.
2. Remove the back cover of the machine and inspect the chains, sprockets, gears, and all other
mechanical parts. During the inspection, look for wearing surfaces, dark dust under the sprockets and
gears, dry chains, or any other signs of wear.
3. Oil chains, sprockets, and gears as needed. Replace worn out parts as needed.
4. Once the mechanical system has been inspected and maintained then inspect the electrical system.
Begin the inspection by first lightly blowing out the inside of the machine with a compressed air blow
gun (be sure compressed air is completely dry and clean). Inspect electrical components, wire, and
wire terminals for dark/discolored areas.
