Table of contents: Disassembly ↓ Assembly ↓
Disassembly
Engage 2nd gear and press the second inner ring of the double-row tapered roller bearing with the 1st gear pinion.
Press the synchronizer of the 1st and 2nd gears with the 2nd gear gear.
Remove the 3rd gear retaining ring.
Press out the third gear pinion.
Remove the 4th gear retaining ring.
Press out the 4th gear pinion.
Press the tapered roller bearing.
Assembly
Install the tapered roller bearing.
Using a press, press the fourth gear pinion until it stops with the wide flange towards the leading gear of the eye gear. Preheat it on a heating plate to a temperature of 120°C.
Install the 4th gear pinion retaining ring of the thickest thickness from those supplied as spare parts (see subsection "Design and technical characteristics").
Using a press, press the third gear pinion until it stops, with the wide flange towards the fourth gear pinion, after heating it, like the fourth gear pinion, to a temperature of 120°C.
Calculate the thickness of the third gear pinion retaining ring. To do this, use a set of feeler gauges to measure the gap between the end of the pinion and the shaft belt. Install a 1.50 mm thick retaining ring if the measured gap is less than 1.60 mm, and a 1.60 mm thick retaining ring if it is equal to and or exceeds 1.60 mm.
Check the axial clearance between the ends of the blocking rings and the end of the toothed rims of the synchronizers of the gears of the first and second gears, which should be at least 0.5 mm. If the clearance is smaller, replace the blocking rings.
Install the needle bearing and 2nd gear sliding gear on the shaft.
Assemble the sliding clutch with the hub of the synchronizer of the 1st and 2nd gears, aligning the groove of the hub and the side of the 1st gear gear.
Install the crackers and put on the springs, placing their connectors at 120°C and inserting the curved ends of the springs into the recesses of the crackers.
Using a press, press the synchronizer of the 1st and 2nd gears onto the shaft, directing the groove of the hub towards the 1st gear pinion
Press on the inner ring of the needle bearing of the 1st gear pinion, the 1st gear pinion, and the second inner ring of the double-row tapered roller bearing.
