6.2.7. Assembly secondary валаф
Before assembly of a shaft check a condition of details, paying attention to the following:
— on a surface of gear wheels wear of teeths or their damage is not allowed;
— the spot of contact of teeths of gear wheels should occupy all working surface of tooth;
— at end faces of teeths of blocking rings of synchronizers considerable wear is not allowed;
— basic surfaces of gear wheels should not have wear tracks;
— the nave of the coupling of the synchronizer should not have damages and jamming traces, especially on surfaces of sliding of the coupling;
— surfaces of balls, rollers, racetracks of rings of bearings should not have damages.
Fig. 4.35. Installation of a nave of the synchronizer
Oil a shaft and establish the needle bearing of a gear wheel of the I transfer. Put on a gear wheel of the I transfer and check ease of its rotation. Put on blocking ring of the synchronizer and напрессуйте a nave of the synchronizer I and II of transfers, paying thus attention to that grooves of a blocking ring of the synchronizer settled down opposite to crackers of a clamp of the sliding coupling (fig. 4.35)
. Fulfill this requirement at installation of all synchronizers of a transmission.
Establish a clamp ball in a shaft nest, having fixed it konsistentny greasing.
Fig. 4.36. Gap measurement between basic half rings and the rasporny plug
Put on blocking ring of the synchronizer II of transfer, a gear wheel and a lock ring. Oil a lock ring and put on a gear wheel of the III transfer. Establish blocking ring of the synchronizer III and IV of transfers, paying thus attention to that grooves of a blocking ring of the synchronizer settled down opposite to crackers of a clamp of the sliding coupling. Establish the second ball of a clamp in a nest of a shaft and fix it konsistentny greasing. Establish a lock ring and oil it. Put on blocking ring of the synchronizer IV of transfer, then a gear wheel. Napressuyte gear wheel of the V transfer. Check ease of rotation of gear wheels of I, II, III and IV transfers (thus sliding couplings of synchronizers should be in neutral situation). Establish the rasporny plug and basic half rings. Measure by means of a set щупов a gap between basic half rings and the rasporny plug (fig. 4.36)
. The gap should be no more than 0,1 mm. If a gap more, pick up and establish two basic half rings of bigger thickness. Establish two new conic bearings.