Disassembly
Remove the 4th gear retaining ring and thrust washer.
Removal of a lock ring of a sliding gear wheel of IV transfer
Remove the 4th gear sliding gear.
Sliding clutch assembly with synchronizer hub
Remove the 4th gear needle bearing.
Remove the 4th gear synchronizer ring
Remove a lock ring of the synchronizer of III and IV transfers.
Removal of a lock ring of the synchronizer of III and IV transfers
Press on the press the gear block of the third gear with the sliding clutch and the synchronizer of the third and fourth gears.
Pressing the 3rd gear gear and the 3rd and 4th gear synchronizer hub
Remove the 3rd gear needle bearing from the shaft.
Assembly
Lubricate the 3rd gear needle bearing with hypoid oil and install it in place.
Check the wear of the blocking ring of the 3rd gear synchronizer. To do this, slide the ring onto the conical part of the third gear sliding gear and measure with a feeler gauge the axial clearance between the end of the blocking ring and the end of the ring gear of the gear synchronizer, which must be at least 0.5 mm.
Checking the axial clearance between the end face of the blocking ring and the end face of the ring gear of the gear synchronizer
Install the 3rd gear sliding gear and the 3rd gear synchronizer ring on the shaft.
If the sliding sleeve has been disconnected from the hub, slide the sliding sleeve onto the hub, install crackers in the grooves of the hub and replace the springs by sliding the spring connectors at an angle of 120°relative to each other. In this case, the bent ends of the spring must be led over the protrusions of the crackers. Press the coupling assembly with the hub onto the shaft, directing the groove or wide collar of the hub towards the sliding gear of the 4th gear. Turn the blocking ring so that the ends of the crackers fit into the grooves of the ring.
Pressing on the sliding clutch of the synchronizer of III and IV gears, complete with the hub
Install the retaining ring and measure the synchronizer axial clearance with a feeler gauge, which should be within 0.00-0.04 mm Select and install the retaining ring that provides the smallest clearance.
Measure the gap between the gears of II and III gears with a feeler gauge, which should be within 0.10-0.35 mm, if necessary, check the adjustment of the synchronizer axial clearance.
Check the wear of the 4th gear synchronizer blocking ring in the same way as it is done for the 3rd gear synchronizer blocking ring.
Install the 4th gear synchronizer block, hypoid oil lubricated needle bearing, 4th gear sliding gear, thrust washer and circlip.
Measure the axial clearance of the 4th gear sliding gear with a feeler gauge. which should be in the range of 0.10-0.35 mm. Achieve the smallest clearance by selecting a retaining ring of the appropriate thickness.
Visitor comments