51 GEAR BOX G-76 24. ASSEMBLYOF 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 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 in holes of shifter shaft bore in housing. Use grease for keeping them in position. Hold and placemain shaft assembly along with counter shaft assembly and shifter fork assembly in position in the housing - Rear. Fig. 112 Fig. 112 Fig. 113 Fig. 114 While inserting shifter shafts in the housing, ensure that interlocking balls are not displaced. Fit interlock pin - 12.8 mm length in shifter shaft 3rd/ 4th. Insert shaft through the shifter fork. Align shaft with hole of and fork then press spiral pin. Ref fig. 113 Place 3 Nos ball - 8 mm dia. and detent spring in holes of housing. Detent spring is to lock 1st / 2nd & 3rd /4th shifter shafts where as short and stiff detent spring is to be used for Reverse/5th shifter shaft. Fig. 114 Fix gasket to detent cover and tighten hex screws along with spring washer. Fit rollers 4 Nos over pins of selector shaft. Slide shifter shaft - Reverse speed in the housing bore. Locate selector & shifter finger between shifter dog - 3rd/4th notch and reverse speed shifter shaft under cut.
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