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F I V E SP EED GEARBO X . . 142. O n early models: With the aid of a suitable press, fit the fifth gear, collar and new circlip to the Later models: Fit the fifth gear to the layshaft using a suitable press and loosely fit a NEW special n u t . T o tighten the nut, hold t h e gearbox necessary use a flange holding wrench to restrain the gearbox. Tighten (150 to 170 ft). To prevent damage to the adjacent bearings when of timber. Using a round nose punch carefully form the collar into the layshaft . ... , 143. Locate assembly horizontally in a or suitablc jig. 144. Fit fifth speed washer, roller bearing, gear and cone to the mainshaft. 145. Press fit fifth gear synchromesh hub assembly using tool Fit a dummy spacer with an oversize bore to ascertain correct spacer to provide the specified clearance on the fifth gear. pushed too far on the mainshaft. Only fit with 146. Measure t h e clearance between the front spaccr and fifth gear (driven), which should be between Select the appropriate spacer to provide the aforementioned clearance. Part No. Thickness Part No. Thickness 147. Fit the correct selective spacer and new circlip. Mainshaft and layshaft 148. Measure and adjust the mainshaft and layshaft end-float as necessary. Remove the layshaft No. Thickness Part No. Thickness 1 1 FR C43 5 5 149. When mainshaft end-float care must be taken when checking the dial gauge readings To overcome the difficulty in differentiating end-float and side movement, wrap approximately ten tums of masking tape around of the input shaft below the splines. Ascertain that the rise and faii of the input shaft is not restricted by the tape. 150. Place a mainshaft and layshaft spacer of nominal thickness 1.02 o n the mainshaft and layshaft bearing tracks, fit the front cover and gasket tighten bolts and spring washers to the specified torque. 151. Invert the gearbox on the stand. Rotate the mainshaft to correctly seat the bearing. 13 |