49 GEAR BOX G-76 ASSEMBLY OF GEAR BOX Place shifter fork assembly 1st/2nd and Reverse/5th over main shaft assembly at its proper place, keeping notches towards coupling flanges side. Place shifter fork 3rd/4th (123) alone without shaft at its place over main shaft sleeve such that its collar is facing outwards. Keep counter shaft assembly aligned with main shaft. Insert two Nos. ball (138a) in holes of shifter shaft bore in housing. Use grease for keeping them in position. Fig. 94 Hold and place main shaft assembly along with counter shaft assembly and shifter fork assembly in position in the housing - Rear. Fig. 95 While inserting shifter shafts in the housing, ensure that interlocking balls are not displaced. Fit interlock pin - 12.8 mm length (146) in shifter shaft 3rd/4th (118). Insert shaft through the shifter fork. Align shaft with hole of fork and then press spiral pin (124). Fig. 96 Place 3 Nos. ball - 8 mm dia. (138) and detent spring in holes of housing. Detent spring (142) is to lock 1st/2nd & 3rd/4th shifter shafts where as short and stiff detent spring (141) is to be used for Reverse/5th shifter shaft. Fig. 97 Fix gasket (139) to detent cover (140) and tighten hex. screws (144) along with spr. washer (145). Fit rollers 4 Nos. (113) over pins (114) of selector shaft (112). Fig. 97 Fig. 96 Fig. 95 Fig. 94 Sectional View Inter lock balls 138 138a
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