MASSEY FERGUSON 5400 - General

Massey Ferguson 5400 - Issue 1.a
05D02.3
GBA20 Speedshift with Power Shuttle
A . General
The Speedshift unit is mounted between the reverse
clutch of the power shuttle and the mechanical unit
consisting of the drive pinion (see chapter 5).
This is a hydraulic controlled gear shift system
providing two input gear ratios to the gearbox. This
function is provided by:
- a multidisc hydraulic clutch;
- an epicyclic gear train consisting of a planet carrier
with three double pinion gears, an input sun gear and
an output sun gear.
- a planet-carrier hydraulic braking system.
The design of the Speedshift allows for gear shifting
while driving without declutching, even at full load.
Specific feature of epicyclic gear train
assembly
Legislation in force in certain countries limits speed to
30 kph. In this case, the sun gears (6) and (7) and pinion
gears (12) of the Speedshift epicyclic gear train should
be positioned as in Fig. 1.
7
6
12
MA-05-06019A
6
7
12
F
18
21
36
39
F
18
21
39
36
40 km/h
30 km/h
Fig. 1