Repair Manual

MANUAL GEARBOX
21
21 - 7
DIAGNOSTICS
C. SLIPS OUT OF VELOCITY STEPS OF GEAR BOX
D. BLOCKING IN A VEELOCITY STEP
Check the situation
of brackets of assembly.
Checking of the
wea and adjustment
of the linkage gear
Tighten brackets
attachment screws
or replace brackets.
Dismount the gearbox:
Check coupling teeth of the shifter
sleeves and pinions.
Check shifter fork contact surfaces with
shifter sleeves.
Check roller attachment system.
Replace defective parts.
Replace defective parts
of the gear linkage.
Adjust the gear linkage.
GOOD
GOOD
BAD
BAD
Check adjustment of
the gearbox control.
Check the state of the
parts composing the
gearbox control.
Adjust gearbox
control.
Dismount the gearbox and check:
- shifting and coupling mechanism;
- shift fork-axle assembly;
- elements of blocking system.
Replace defective parts.
Replace damaged parts of the
control system.
Adjust gear linkage.
GOOD
BAD
GOOD
BAD
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