35 - 3
Section F Transmission
9803/3280
Section F
35 - 3
Issue 1
Fault Finding
Synchro Shuttle Gearbox (cont'd)
CHECK ACTION
33 Are the selector rods worn or damaged? YES: Renew.
NO: Check 34
34 Are the selector fork pads out of position? YES: Reposition or renew (check interlock).
NO: Check 35
35 Is there excessive end float in gears or shafts? YES: Adjust.
NO: Check thrust washers and mating faces.
36 Is the synchroniser bronze worn? YES: Renew synchro pack.
NO: Check 37
37 Are steel chips embedded in the bronze? YES: Continue using, chips will either embed below bronze
or be rejected.
NO: Check 38
38 Are the synchroniser components damaged? YES: Renew.
NO: Check free running gears for seizure or damage.
39 Are the sliding gears tight on the splines? YES: Free or renew.
NO: Check 40
40 Are chips wedged between splines of shaft YES: Remove chips.
or gear? NO: Ensure that clutch is disengaged when dump pedal is
pressed.
41 Are steel chips embedded in the bronze? YES: Continue using, chips will either embed below bronze
or be rejected.
NO: Check 42
42 Are the synchroniser spring pins damaged? YES: Renew synchro.
NO: Check 43
43 Is the synchroniser bronze worn? YES: Renew synchro.
NO: Check blocker pins.
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