Technicians checked forward gear reverse (A, B, C) and gears (1, 2, 3, 4) looks into gear. So difficult to find that the gear cover gear changer looks Rod bearing area.
Technicians checked the gear Forward (A, B, C) and gears (1,2,3,4) is geared difficult. Dissect the Taunton gear The gear cover bearing a look around.
Technicians checked the gear to move backwards (,, A B C) and gear (,,, 1 2 3 4) has the characteristics of gear.Difficult, so surgery to change gear. Found that the gear cover looks around the bearings.