Disassembling and assembling the differential (Skoda Octavia 1U)

1 – gearbox housing; 2 – screw; 3 – differential box (screwed to the gear for driving secondary shafts with flange, in gearboxes with compression springs behind the shafts with flange there is a chamfer for fastening conical rings, item 21); 4 – gear for the main transmission (riveted at the factory, install by preheating to a temperature of 100°C, install on the differential box, forms a pair with the secondary (driven) shaft; when replacing, replace together; 5 – sheet metal lining; 6 – nut, 70 Nm; 7 – adjusting gasket (for differential); 8 – outer ring of tapered roller bearing; 9 – inner ring of tapered roller bearing; 10 - differential box (with riveted pinion, rivets should be drilled to replace the pinion; attaching gear with screws; in gearboxes with compression springs there is a chamfer behind the flange shafts for attaching conical rings, pos. 21); 11 – speedometer drive gear (before pressing the inner ring, install it all the way onto the differential box); 12 – inner ring of tapered roller bearing; 13 – outer ring of tapered roller bearing; 14 – clutch housing; 15 – sleeve (for fastening the sealing ring, pos. 16); 16 – sealing ring; 17 – conical screw, 25 Nm (to secure the shaft to the flange, screw it with the threaded part, pos. 25); 18 – shaft with flange (with conical screw thread); 19 – compression spring for shaft with flange (mounted behind a flanged shaft); 20 – thrust ring (mounted in combination with compression springs behind the shaft with flange; assembly position: flange - to the compression spring, flange - to the conical ring); 21 – conical ring (mounted in combination with compression springs behind the shaft with flange and with grooves for engaging the thrust ring; assembly position: cone facing the differential box); 22 – retaining ring (mounted in combination with compression springs behind the flange shaft; when the shaft with the flange is disassembled, it holds the conical ring, thrust ring and compression spring in this position; 23 – spherical insert (install lubricated with transmission oil); 24 – bevel differential satellite, large; 25 – threaded part (mounted in combination with compression springs behind the flange shaft); 26 – differential bevel pinion axle (press out with a mandrel); 27 – clamping sleeve (for locking the differential bevel pinion axle); 28 – bevel gear differential, small; 29 – bevel differential satellite, large