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Text artwork 990-9030 Rev. A. Equipment Handbook for the Low Voltage Disconnectors series Page 15 of 20
CONTACTOR REMOVAL AND REPLACEMENT
Caution
This procedure requires the system to be powered down.
11 To remove and replace the contactor, proceed as follows:
11.1 Switch off and isolate the external power system and check that the contactor is de-
energised.
11.2 Disconnect the output cable at the battery end and wrap with two layers of insulating tape.
11.3 Open the door, remove five screws and washers on the plastic plate and lift off the plate.
11.4 Remove two nuts on FS1 and lift off the fuse.
11.5 Remove five nuts and washers holding the contactor to the two adjacent copper bars and
remove the curved copper bar.
11.6 Remove the eight push-on connectors on the contactor (four on the top and four on the side),
noting the locations and the polarity of the diode.
11.7 Remove four nuts and washers on the base of the bracket and lift the bracket and contactor
out of the unit.
11.8 Remove three nuts and washers on the bracket and lift off the contactor.
11.9 Fit a replacement contactor to the bracket using three nuts and washers.
11.10 Secure the contactor and bracket in the unit using four nuts and washers.
11.11 Refit the eight push-on connectors to the contactor observing correct locations and correct
polarity of the diode.
11.12 Refit the curved copper bar and the contactor to the adjacent copper bars using five screws
and washers.
11.13 Refit FS1 using two nuts and washers.
11.14 Refit the plastic plate using five screws and washers and close the door.
11.15 Remove the insulating tape from the output cable and connect to the battery negative
terminal.
11.16 Power up the system as detailed in Section 5 Para 8.