Trou Ble Shooting; Troubleshooting Guide - Thermal Arc Dragster 80 Owner's Manual

DRAGSTER 80

TROU BLE SHOOTING

WARNING: DIS CON NECT THE IN PUT POWER CORD BE FORE CARRYING
OUT ANY SER VICE OR RE PAIR WORK. HAZ ARD OUS VOLT AGES ARE
PRES ENT IN THE MA CHINE WHEN EVER IN PUT POWER IS CON NECTED.
WARNING: ALL SER VICE SHOULD BE PER FORMED BY TRAINED PER -
SON NEL ONLY.
WARNING: HAZ ARD OUS VOLT AGES MAY BE PRES ENT IN SIDE THIS MA -
CHINE FOR SEV ERAL MIN UTES AFTER POWER IS RE MOVED. WAIT 10 MIN -
UTES AFTER RE MOVING POWER BE FORE RE MOVING COVER. NEVER
OP ER ATE WITH THE COVER RE MOVED.

Troubleshooting guide

On/Off switch light does not come on
Unit un plugged.
Blown fuse or trip ped breaker.
OVERTEMPERATURE LIGHT co mes on
Unit has over heated.
Er ratic weld out put
Check all con nec tions:
Low open cir cuit volt age
Line volt age too low.
Wrong size ex ten sion cord.
Make sure the proper size fuse or breaker is be ing used.
Let the unit cool down for at least 10 min utes. Turn power off and back on.
Overtemperature light should then go off. Ob serve duty cy cle rat ing.
Check ground clamp con nec tion to workpiece.
Check elec trode con nec tion in elec trode holder.
Check twist lock con nec tions to unit.
Check all ca ble con nec tions.
See Ta ble 5-1.
430429-440
7-1