Return to Section TOC
Return to Master TOC
TROUBLESHOOTING & REPAIR
INPUT CONTACTOR TEST (continued)
FIGURE F.4 – INPUT CONTACTOR TEST CONNECTIONS
Return to Section TOC
Return to Master TOC
X1, #232 |
|
|
|
|
|
UVW | (L1)(L2)(L3) | AH# ACC730 - 8025B | LINCOLN ELECTRIC CO. | CRI SA M - 12161 - 61 | LR495980597 |
#233 |
|
|
| ||
APPLY EXTERNAL 120 VAC HERE (X1, #232 AND #233
LEAD TERMINALS)
UVW | (L1)(L2)(L3) | AH# ACC730 - 8025B | LINCOLN ELECTRIC CO. | CRI SA M - 12161 - 61 | LR495980597 |
Return to Section TOC
Return to Master TOC
TEST FOR CONTACT CONTINUITY
1.Disconnect the main input supply power to the machine.
2.Remove the two leads connected to the input con- tactor coil, #233 and X1/#232. See Figure F.4 for location.
3.Using the external 120VAC supply, apply 120VAC to the terminals of the input contactor coil. If the con- tactor does NOT activate, the input contactor is faulty. Replace the input contactor.
4.With the contactor activated, check the continuity across the contacts. (Zero ohms or very low resis- tance is normal.) See Figure F.4. If the resistance is high, the input contactor is faulty. Replace the input contactor.
5.When the contactor is NOT activated, the resistance should be infinite or very high across the contacts. If the resistance is low, the input contactor is faulty. Replace the input contactor.
Return to Section TOC
Return to Master TOC