2582503 - S21 NOISE' GEARBOX / AT TAKE-OFF

On setting off, when the various gears are engaged and the clutch released, or at the start of deceleration, there is a noise (jolt)
Results of the tests
1GEARBOX SUPPORTS CHECKAll OKProblems metOperation
Check the gearbox support fastenings: they should not be slackContinue to Step 2Nuts slackRestore the correct tightening of the slack nuts
2CHECKING THE CROWNWHEEL AND PINIONAll OKProblems metOperation
Check the crown wheel and pinion reduction In particular: it should not be worn or damaged; there should not be excessive clearance the crownwheel fixings should not be slackContinue to Step 3Clearance excessiveRestore the clearance or, if necessary, replace the reduction gear Op. 2110D28
3DIFFERENTIAL HOUSING CHECKAll OKProblems metOperation
Check the wear of the satellite carrier bearing or the housing in the differential housingContinue to Step 4Casing wornOverhaul or replace the differential housing Op.   2110D10 
4CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentFault persistsSearch for the fault starting from another symptom'