Zetor Major 80 Operator's Manual page 138

ADJUSTMENT
ADJUSTING CLUTCH PEDAL
Adjusting free run of clutch pedal (a) is done by changing the
length of Bowden (1).
Clutch pedal free run (a) must be 25 – 35 mm.
Free run of clutch pedal represents the track of pedal between
the upper position of clutch pedal and the point when control
force on the clutch pedal increases.
NM13N113
138