3239110 - 2110D20 differential inner case, removed - dismantle and rebuild, check planet and differential gears

Dismantling ( Reassembling ) Position the differential internal housing in the vice fitted with protective jaws.1. Remove he front bearing (1a) using tools (1b) and (1c).2. Remove the speedometer drive gear.

	Name	Country
1b	Extractor	1.840.005.200

	Name	Country
1c	Clamps	1.840.005.103

1. Remove the rear bearing (1a) using tools (1b) and (1c).

	Name	Country
1b	Extractor	1.840.005.200

	Name	Country
1c	Clamps	1.840.005.103

1. Undo the bolts (1a) and remove the crownwheel (1b). 1. Separate the halves of the differential internal housing using a suitable drift.2. Remove the scraper ring.3. Remove the bearing.4. Remove the planet gear. 1. Remove the satellite carrier shaft retaining pin using a suitable drift. 1. Remove the satellite carrier shaft using a suitable drift.2. Remove the satellite gears (2a) and thrust washers (2b).3. Remove the planet gear.4. Remove the bearing.5. Remove the scraper ring. Reassembling ( Dismantling ) Fit the adjustment shim in the front half of the differential housing.Fit the bearing.Fit the planet gear.Fit the satellite gears and thrust washers and fix them with the satellite carrier shaft to be fitted using a suitable drift.Fit the satellite carrier shaft retaining pin using a suitable drift.1. Position the front half of the differential housing using a special gauge.2. Fit the tool on the front half of the differential housing.

	Name	Country
2	Gauge	1.820.125.000

3. Position a magnetic base (3a), complete with dial gauge (3b), with the pointer in contact with the tool with a pre-loading of 1 mm.Rotate the tool and move it axially, checking that the end float is within the recommended values.

	Measurement		Value
-	Max. end float. (mm)		0.2

If the values measured do not correspond with the figures given, replace the adjustment shim with a suitably sized one.Rotate the tool through one complete revolution and check that the variation in the end float is within the recommended values.

	Measurement		Value
-	End float minimum variation (mm)		0.1

Fit the planet gear.Fit the bearing.Fit the scraper ring.Fit the rear half of the housing.1. Fit the crownwheel (1a) and fix it temporarily using the bolts (1b).2. Fit the tool on the rear half of the differential housing.

	Name	Country
2	Gauge	1.820.125.000

3. Position a magnetic base (3a), complete with dial gauge (3b), with the pointer in contact with the tool with a pre-loading of 1 mm.Rotate the tool and move it axially, checking that the end float is within the recommended values.

	Measurement		Value
-	Max. end float. (mm)		0.2

If the values measured do not correspond with the figures given, replace the adjustment shim with a suitably sized one.Rotate the tool through one complete revolution and check that the variation in the end float is within the recommended values.

	Measurement		Value
-	End float minimum variation (mm)		0.1

If the values measured do not correspond with the figures given, replace the differential wheel.Tighten the differential crown wheel bolts to the specified torque.

	Fastening	Component	Ø	Value(daNm)
-	Bolt	DIFF CROWN WHEEL	M10	7.7 - 9.5

Fit the speedometer drive gear.1. Fit the front bearing (1a), using a hydraulic press, a suitable plate (1b) and the fitting tool (1c).

	Name	Country
1c	Tool for Extracting/Fitting	1.870.658.000

1. Fit the rear bearing (1a), using a hydraulic press, a suitable plate (1b) and the fitting tool (1c).

	Name	Country
1c	Tool for Extracting/Fitting	1.870.658.000