Figure 9 Cross section of mechanical reverse
shuttle
1. Cover only on tractors without quick ---shift
gear
2. Lubricating oil bore
3. Reversing shaft
4. Sealing compound Hylosil RTV Grade 102
black
5. Gearbox input shaft
6.Reverseshuttleinputshaft
7. Reverseshuttlelayshaft
8. On later tractors there is a loose metal ring
between bearings. The ring has been fastened
with locking fluid.
748
Model Code Page
1. 11. 1998
6000--8750
18440
44. Quick---shift gear, reverse shuttle
and 4WD clutch
15. 5. 1993
21---25 Nm
1
2
3
4
5
6
7
8
Forward driving
The synchromeshunit is in the frontposition (F). Gear Z31 has
been engaged to the gearbox input shaft (5), and power is
transmitted direct to the gearbox (transmission ratio 1:1).
Reversing
The synchromesh unit is in the rear position (R). Power is
transmitted from the input shaft (6 ) via reversing shaft (3) to
the layshaft (7). The layshaft rear gear (Z24) rotates the gear
Z33 which has been engaged to the gearbox input shaft (5).
(transmission ratio 2,5 % faster than in driving forward).
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