New Holland WorkMaster 50 Service Manual page 176

37. Insert the 1st/2nd rail (2) passing thru gate as shown
in figure 18.
NOTE: Keep grooves of rails upward to make easy fitment
of balls and springs.
38. Insert the ball and pin (1) after removing neutral safety
switch for Hi/Low rail then fit neutral safety switch and
tighten it.
39. After fitting reverse rail insert ball (1) applying some
grease in the housing as such it sits in groove given
on reverse rail.
40. Insert the balls (1) and springs (2) of the rails. Insert
plug above the spring of Hi/Low rail. Fit roll pins (3) in
all rails and gates.
Transmission - Gearbox internal components
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GNIL14TR04230AB
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GNIL14TR04234AB