MASSEY FERGUSON 5400 - General

Massey Ferguson 5400 - Issue 1.a
05I02.3
GBA20 layshaft with Power Shuttle
64
63
61
59
58
60
57
56
54
62
53
52
51
50
82
55
MA-05-00493A
61
64
63
62
595860575682555453
5150
52
MA-05-00492B
Overall view
Fig. 1
Exploded view
A . General
The layshaft and its pinions (Fig. 1) form the upper line
of the GBA20 gearbox with power shuttle.
It supports the driven pinions of the 1st and 4th gears.
The shaft teeth (54) are constantly meshed with the
Tortoise pinion.
The shaft is supported by:
- the taper roller bearing (63) and (64) housed in the
rear bearing of the input unit;
- the taper roller bearing (52) and (53) located in the
rear bearing of the gearbox.
The four pinions are held in position by the spacers (57)
and (82).
The operating clearance of these pinions is obtained by
inserting shims (58) between the driven pinions of the
1st (60) and 2nd (59).
Parts list (Fig. 1)
(50) Oil deflector
(51) Shim(s)
(52) Bearing cup
(53) Bearing cone
(54) Shaft
(55) 3rd driven pinion
(56) 4th driven pinion
(57) Spacer
(58) Shim(s)
(59) 2nd driven pinion
(60) 1st driven pinion
(61) Circlip
(62) Needle bearing
(63) Bearing cone
(64) Bearing cup
(82) Spacer