GEAR BOX 14 4.2.3 OVERHAULING 4.2.3.1 INFORMATION FOR OVERHAULING A. COMPONENT INDENTIFICATION NOTE Only identification of components which can be assembled incorrectly due to their similar constructions is mentioned below ENGAGING GEARS All engaging gear should be free from play. 1. 1st/2nd ENGAGING GEAR This engaging gear is having symmetrical shank on both faces. 2. 3rd/4th ENGAGING GEAR This engaging gear has shank only on 3rd gear side. NOTE Dimension between drive shaft synchronizing face to 3rd/4th engaging gear front face 11+0.1 3. 5th/REVERSE ENGAGING GEAR This engaging gear is having asymmetrical shank its faces. The depth of the shank on the reverse gear side is more. SYNCHRO CONES 1. 1st/2nd GEAR SYNCHRO CONE This is the double synchro cone. This is used for gradual gear engagement and this avoids gear clashing. DOUBLE SYNCHRO CONE ASSEMBLY PROCEDURE • First place the 1st and 2nd speed gear over the main shaft. • Then place inner synchro cone properly so that its seat matches with the gear. • Then fix the intermediate cone by properly aligning the 3 plugs. • Then fix the outer synchro cone.
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