Also meine Getriebe-Reparaturanleitung sagt dazu, wenn der R-gang nicht mehr geht:
-wrong setting of gear change rods between control lever and gear box
* correct setting
-dirty oil filter
-clutch B destroyed, in this case also no 3rd gear
-clutch D destroyed, no engine braking in position 1, 1st gear
-clutch E destroyed, no engine braking in 2nd and 3rd gear, also in position 1, first gear
-reverse gear safety valve faulty, see ATSG bulletin 92-12
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