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TROUBLESHOOTING & REPAIR
MAIN CONTACTOR TEST (continued)
FIGURE F.35 - MAIN CONTACTOR
L | 1 | A | L | 3 | A |
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L1 L2 L3
CR1
T1 T2 T3
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TEST PROCEDURE
1.Remove main input supply power to the machine.
2.With the 3/8" nut driver, remove the 4 screws that hold the handle to the machine.
3.Remove the rubber gasket (cover seal) from the lift bail.
4.With the 5/16" nut driver, remove the sheet metal screws from the case top.
5.With the 5/16" nut driver, remove the screws holding the right and left case sides. Remove the case sides by lifting up and out.
6.Perform the Capacitor Discharge Procedure described earlier in this section of the manual.
WARNING
Before continuing with the test procedure, perform the capacitor discharge proce- dure to avoid electric shock.
7.After you have completed the capacitor dis- charge procedure for all four switch boards, visually inspect the input terminals L1, L2, and L3 of the main contactor. Make sure they are not shorted together. If they are shorted, go to step 8. If they are not short- ed, go to step 9.
8.With the slot head screw driver, remove leads L1A and L3A from the main contactor.
