Miller Electric MIGHT High Power TIG 150, Руководство пользователя

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SECTION 5 – MAINTENANCE AND TROUBLESHOOTING
5-1. Routine Maintenance
5-2. Troubleshooting
V
Disconnect power before maintaining.
Maintain more often during severe conditions.
3 Months
6 Months
Replace
unreadable
labels.
Repair Or Replace
Cracked Cables
And Cords
Replace Damaged
Gas Hoses
V
Do not remove case when blowing out inside of unit.
Blow out inside. Direct airflow through front and back louvers.
Trouble Remedy
No weld output; unit completely
inoperative; ready light (LED) Off. Place line disconnect switch in On position.
Check and replace line fuse(s), if necessary, or reset circuit breaker.
Be sure power cord is plugged in and that receptacle is receiving input power.
No weld output; ready light (LED) On. Check and secure loose weld cable(s) into receptacle(s).
Check and correct poor connection of work clamp to workpiece.
No weld output; high temperature light
(LED) On. Unit overheated causing thermal shutdown. Allow unit to cool with fan On (see Section 3-2).
Reduce duty cycle or amperage.
Check and correct blocked/poor airflow to unit (see Section 3-4).
No weld output; high temperature light
(LED) Flashing. Turn Power Off and back On again. If light continues to flash, check with Factory Authorized
Service Agent.
No weld output. Blue light (LED)
flashes continuously, yellow light
(LED) off. Line voltage to high or to low. Line voltage must be within ±10%.
Unit needs to rest. Cycle power off and back on. If problem is not corrected, contact Factory
Authorized Service Agent.
No weld output. Blue light (LED) flashes
3 times repeatedly, yellow light (LED) off. Remote trigger left on. Turn off remote trigger, wait 5 seconds, and restart operation.
Erratic or improper welding arc or
output. Use proper size and type of weld cable (see your Distributor).
Clean and tighten weld connections.
Check and reverse polarity; check and correct poor connections to workpiece.
Fan not operating. Unit not warmed up enough to require fan cooling.
Check for and remove anything blocking fan movement.
Have Factory Authorized Service Agent check fan motor and control circuitry.
Stick welding problems: Hard starts;
poor welding characteristics; unusual
spattering. Use proper type and size of electrode.
Check and reverse electrode polarity; check and correct poor connections.
Make sure a remote control is not connected.
TIG welding problems: Wandering arc;
hard starts; poor welding characteris-
tics; spattering problems. Use proper type and size of tungsten.
Use properly prepared tungsten.
Check and reverse electrode polarity.
TIG welding problems: Tungsten
electrode oxidizing and not remaining
bright after welding. Shield weld zone from drafts.
Check for correct type shielding gas.
Check and tighten gas fittings.
Check and change electrode polarity.
OM-221 022 Page 14