Malfunction of spring of the
reversing shaft
The reversing shaft is bent and
deformed
Replace the reversing shaft
The reversing shaft is
loose
Rear bolts of reversing shaft
are loose
Screw the reversing shaft
The matching between
reversing shaft and gear-box
body is too loose
Too much noise from the
gears
Deformation and bend of the
angle gear and reversing shaft
Too much lateral clearance due
to excess abrasion of gears
The matching between bevel
gear and reversing shaft and
gear-box body is too loose