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5 CF65/75/85 series ≥0E621376 Removal and installation REPAIRING WIRING 2-19 2.6 REMOVAL AND INSTALLATION, EARTH WIRE When a failure occurs in an electrical system, one of the first things to be checked is the earth connection, with particular attention being paid to earth connections on the chassis. Points for special attention when checking earth connection on chassis If an earth connection has been removed and is being re-installed, pay attention to the following: - The bolt, nut, earth strip and washers must be cleaned (e.g. using a steel brush or sand paper). If a component is corroded, it must be replaced by a new one. - Clean all dirt and paint from the area around the engine/chassis earth connection on both sides of the chassis member so that the bare metal is visible. - Clean all dirt and paint from the area around the battery/chassis earth connection on the inside of the chassis member so that the bare metal is visible. - On the earth strip side, the cleaned area must be larger than the contact area of the earth strip. - On the nut side, the cleaned area must be larger than the contact surface of the nut. - After fitting the earth connection, a protective zinc primer should be applied to both sides of it and it should be painted. E501495 3 200404 |