DAF CF75 Series - Page 203

3
CF65/75/85 series Component description
ZF 8/9/16S-109 GEARBOX
2-1
2. COMPONENT DESCRIPTION
2.1 SYNCHRONISER
B-lock synchronisation
The synchroniser consists of the following parts:
1. Gear
2. Clutch body
3. Synchromesh ring
4. Synchroniser sleeve support
5. Pressure spring
6. Thrust piece
7. Synchroniser sleeve
8. Main shaft
In neutral, the synchroniser sleeve (7) is in the
centre position.
Pressure springs (5) push the thrust pieces (6)
into a wedge-shaped recess in the synchroniser
sleeve (7).
The gear wheels (1) and corresponding clutch
bodies (2) move freely around the main
shaft (8).
If the synchroniser sleeve (7) is shifted to the
right from the neutral position, the synchromesh
ring (3) is pushed against the friction cone of the
clutch body (2) by the thrust pieces (6).
The difference in speed immediately turns the
synchromeshring(3)toastoponthe
synchroniser sleeve support (4), which is not in
the figure, and thus prevents further movement
of the synchroniser sleeve (7).
W 3 03 046
2
3
5
1
4
7
6
8
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