		Test results
1	GEAR SELECTION CHECK	All OK	Problems encountered	Operation
	Check the condition of the gear selection ball springs	Move on to Step 2	Springs or balls damaged	Replace the affected parts.
2	SYNCHRONISER RING CHECK	All OK	Problems encountered	Operation
	Overhaul the gearbox (see Overhauling Gearboxes) Op. 2110B MANUAL GEARBOX WITH DIFFERENTIAL GEARS AND SYNCHRONISERS Check the synchroniser rings in particular: there should be no wear on the inner surfaces.	Move on to Step 3	Rings worn	Replace the synchronisers.
4	CHECK ON HUBS AND SLIDING SLEEVES	All OK	Problems encountered	Operation
	Overhaul the gearbox (see Overhauling Gearboxes). Op. 2110B MANUAL GEARBOX WITH DIFFERENTIAL GEARS AND SYNCHRONISERS Check the hubs and the sliding sleeves in particular: - they should not show signs of notches, wear or excessive clearance; - they should slide freely.	End of diagnosis	Sleeves or hubs worn.	Replace the worn sleeves or hubs.

It is sometimes difficult to engage the gears; there is also a (grating) noise coming from the area of the gearbox