21
Operations to be performed.
Check the sinchro assembly of the velocity step :
- friction cones of the synchro pinion and gear;
- synchro hub,springs and wedges;
- coupling gears of the pinion and the sliding gear.
B. IMPOSSIBILITY OF GEAR COUPLING
Check the wear
of linkage gear.
GOOD
Dismount the gearbox.
Check gear shifting and
coupling of the velocity steps.
Check synchro cones and
wedges.
MANUAL GEARBOX
DIAGNOSTICS
GLOSSARY
A. NOISY GEAR SHIFTING
(AFTER CLUTCH CHECKING)
Dismount the gearbox.
( AFTER CLUTCH CHECKING )
Check gear linkage.
GOOD
Replace defective
Adjust gear linkage.
21 - 6
Checking
BAD
parts.
BAD
Adjust gear linkage.