MASSEY FERGUSON 5400 - Page 58

Massey Ferguson 5400 - Issue 1.a
05B01.6
GBA20 input unit with mechanical reverse shuttle
Refitting the input unit
13. Clean the mating faces of the gearbox and input
unit.
14. Check for the presence of the cup (64) (Fig. 6).
15. Fit the gearbox and input unit with new O’rings (2)
and (3).
Place the locating pin (4) (Fig. 5).
16. Screw two diametrically opposed guide studs “G”
into the gearbox (Fig. 7).
N
OTE: The guide studs “G” assist insertion of the
unit into the gearbox. Their use is advisable but not
mandatory.
17. With the help of an operator, insert the input unit
into the gearbox and align the gearbox layshaft
with the input unit: slightly raise the layshaft with
the selector cover to ensure alignement (Fig. 8).
18. Turn the input shaft of the unit.
19. Engage the unit in the locating pin (4).
Place the input unit on the gearbox mating face.
20. Fit and tighten the M10 screws to a torque of
50 - 70 Nm.
Fig. 6
Fig. 7
Fig. 8