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5 CF65/75/85 Series ≥0E621376 Fault finding DIAGNOSTICS 1-7 INSPECTION 2, MEASURING THE STARTING CURRENT Measure the starting current through the steering shaft while starting, using the current probe. This measurement must be carried out with the probe’s “Max Hold” function. Make sure that the current probe is placed in the right position (direction of current) and its jaws are closed around the steering shaft. Measured current value Measures to be taken < 5.0 A - Main earth connections are in good condition; end of inspection 2: vehicle is OK. ≥ 5.0 A - Inspect - and if necessary repair - all main earth connections from the cab to the negative battery terminal between the following points: - battery earth and cab earth - cab earth and flywheel housing earth - flywheel housing earth and chassis earth - chassis earth and battery earth y Note: A voltage loss measurement must be carried out to identify which earthing point is in poor condition. This measurement is described later on in this procedure. - The starting current value through the steering shaft must be less than 5.0 - The starting current value through the steering shaft must be less than 5.0 A after repair. Otherwise one or more main earth connections are not yet in good order and the main earth connections must be inspected again and if necessary repaired. - If the current value is < 5.0 A, the earth connections are in good order; end of inspection 2: vehicle is OK. 1 200520 |