Chapter 3 Engine Section 4 Inspection and maintenance of engine componenets
3—39
Shift fork
Use feeler gauge to measure the clearance of shift fork
in corresponding gear slot.
Each gap in the two shift forks plays an important role
in the smooth and reliable shift action.
Each fork has a fork and is arranged in a angular
groove of its gear.
During operation, there is a sliding contact between
the fork and the gear. When the shifting action is initiated,
the fork pushes the gear axially.
If the clearance is too large, the meshing gear can slip
away.As in Fig.3.4.77
If the clearance exceeds the specified, the fork,
corresponding gear, or both should be replaced.
Tools: feeler gauge
Limit of use: 0.50mm
Shift fork to slot clearance: 0.1-0.3
standard
Width of shifting fork slot
Shift forks and V-gear driven gears: 5.0 -- 5.1 mm
Driving gear of grade and grade : 5.5 ⅲ ⅳ -- 5.6 mm
As in Fig.3.4.78
Fig.3.4.77
Fig.3.4.78
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