22 · Diagnostics

Noise gearbox / at take-off

Fault diagnosisNoise gearbox / at take-off

NOISE GEARBOX / AT TAKE-OFF

1.6 TS, 2.0 TS

On setting off, when the various gears are engaged and the clutch released, or at the start of deceleration, there is a noise (jolt)

1	FIRST CHECK	All OK	Problems met	Operation
		Results of the tests
	Kingpin attachment Shock absorber/suspension fastening Condition and attachment of bushes and flexible mountings securing power unit and moving suspension components Condition and play on steering balljoints	Continue to Step 2	Wheel attachments loose	Retighten attachments
			Power unit flexible mountings damaged	Replace the damaged components
			Track control arm flexible mountings damaged	Replace track control arms
2	CHECKING THE CROWNWHEEL AND PINION	All OK	Problems met	Operation
	Check whether the crownwheel and pinion are worn or damaged, and that the crownwheel attachments are not damaged	Continue to Step 3	Crownwheel and pinion worn	Replace the crownwheel and pinion Op. 2110B20
3	CHECK ON DIFFERENTIAL UNIT	All OK	Problems met	Operation
	Check the wear of the satellite carrier bearing or the housing in the differential housing Check differential bearing preload	Continue to Step 4	Casing worn	Replace casing Op. 2110D10
		Continue to Step 4	Preload not correct	Adjust preload as specified
4	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present		Fault persists	Search for the fault starting from another symptom'

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