Troubleshooting
6-126 Manual # 42-02-7223
2. Loosen the two screws on the right and left side of the auxiliary contactor and remove it
by pulling out and away from the main contactor.
3. Install the new auxiliary contactor. Make sure that the auxiliary contactor pin is inserted
into the body of the main contactor.
4. Replace the mounting screws (torque to 4 IN LBS.).
5. Reconnect the wires. Note: Load the outer-most terminals first.
Replacing a Contactor Coil
To replace the coil on a contactor, the contactor must first be removed.
1. Remove the coil by pressing up on the red tab and pulling out.
2. Insert the new coil into the slot on the contactor and lock it in place.
Replacing Contactor Internal Contacts 1.
1. Remove the cover.
2. Remove the top contacts by lifting the metal bracket up and then removing the contact.
3. Replace the contacts:
• Use a small screwdriver to lift the metal bracket up.
• While lifting, insert the contact at an angle, then lay it flat and lower the metal bracket.
4. Remove the bottom contacts using a 3mm Allen wrench.
5. Install a new bottom contact by inserting it in the contactor and replacing the mounting
screw.
6. Replace the cover. The mounting screws should be torqued to 30-35 inch pounds.
Table 6.35 Replacement Parts for Contactors
ITEM (DESCRIPTION) MCE PART # UNIT
Contactor (Contactor for SCR Drive) 35-12-0001 Kit
Terminal Lug Kit (Lug Kit for Contactor set) 35-14-0001 Kit (3 sets)
Auxiliary Contactor 35-14-0002 EA
Contactor Coil 35-14-0003 EA
Contacts 35-15-0001 KT
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