Manual Do Utilizadoríndice analíticoMaster TOC6Safety2Section A Installation7Section B Operation21Section C Accessories41Section D Maintenance49Section E Theory of Operation53Section F Troubleshooting & Repair59Symptoms62No wire feed when gun trigger is activated. The digital meter does NOT light. The drive rolls do not turn.62No wire feed when gun trigger is activated. The digital meter DOES light but reads zero in both (set and ....62The wire feed "coasts" when the gun trigger is released. The inter-lock switch is OFF.63No wire feed when gun trigger is activated. The drive rolls do not turn. The digital meter does light ....64The wire feeds when the gun trigger is activated, but there is no arc voltage.65The SET speed is adjustable and steady. The actual speed is uncontrollable. The meter displays the ....66The SET speed is adjustable and steady. The actual speed reading is incorrect, erratic, or zero.66The SET speed is erratic or not adjustable over entire range of control. The actual speed is also erratic ....67The wire continues to feed with the gun trigger open, and the wire is electrically "hot." The interlock ....67The wire feeds when the interlock switch is in the "ON" position. No welding or gun trigger activation.68With the interlock switch in the "ON" position, the wire feed stops when the gun trigger is released.68The SET voltage is erratic or not adjustable over the entire range of control. The actual voltage is also ....69The field fuse (F101), located on the power PC board, repeatedly fails.69Circuit breaker (5 amp) repeatedly trips when the gun trigger is activated.70Circuit breaker (5 amp) trips when power is applied to the LN-9. Gun trigger is NOT activated.70The 1/8 amp fuse on the voltage PC board repeatedly fails.71The LN-9 shuts down while welding. Upon retriggering, the gun the unit will weld again for a period of ....72When the gun trigger is activated the drive rolls turn, but the wire will not feed or wire feeding is rough.73The welding arc is variable or "hunting."74Poor arc striking with sticking or "blast offs." The weld bead may also be ropey and display weld porosity.75The SET and actual speed meter readings match within a few IPM, but both are in error.76SET speed and actual speed meter readings do NOT match within a few IPM. One or both readings may be erratic.76SET volts and actual volts readings match within a few tenths of a volt while welding. However, both readings are inaccurate.77The actual volts reading does NOT match the SET volts reading within few tenths of a volt while welding.77The output voltage is too low to start the weld.78Voltage seems to be too high or the arc flares at the start of weld. Welding is good.79The arc voltage appears to rise too slowly or stubs or blasts at the start of a weld. Once started the welding is good.80Section G Electrical Diagrams129Tamanho: 1 MBPáginas: 135Language: EnglishAbrir o manual