FO-4 I&T (Remastered Ver.1.2 ) 05-24-2015
80. COUNTERSHAFT. This shaft (11-Fig. FO57) may be removed after mainshaft is out
but before reverse idler gear is removed. Remove power take-off shifter and bearing
support and remove shifter clutch hub from rear end of countershaft. Remove
countershaft and gear assembly through cover opening in top of transmission
housing. Renew work or damaged parts and reassemble as shown in Fig. FO62.
Reinstall the assembly and adjust bearings by means of shims (7135) to obtain zero
end play or 15-30 inch pounds torque with shaft in motion and mainshaft removed
from transmission. If tested with mainshaft installed, turning torque will be 30-60
inch pounds. Shaft should be rotated for checking bearing adjustment by inserting
PTO shaft in shifter unit and engaging the jaw clutch.
Connect/Report Errors – jcchapster@gmail.com
Fig. FO57 - Transmission side and end views on model 8N tractor.
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