Massey Ferguson 5400 - Issue 1.a
06D01.10
GPA20 handbrake unit and control
45. Refit the pinion (2) (if fitted).
46. Position the circlip (1).
47. Depending on the model:
- with creeper unit: refit the sleeve assembly (link
shaft and coupler) and the creeper unit fork. Turn
the groove on the drive pinion sleeve towards
the rear of the tractor. Replace the pins. Adjust
the forks (see chapter 5).
- without creeper unit: refit the sleeve assembly
(link shaft and coupler). Turn the groove on the
drive pinion sleeve towards the rear of the
tractor. Replace the pins.
48. Refit the left-hand cover (see chapter 9).
49. Position the guide rod link (2) (Fig. 12) with the cam
(14) in contact with the guide rod link (13) to obtain
a distance of 315 mm ± 12mm between the cable
attachment pin and the support (3). Fit the pin (1)
(Fig. 12).
50. Adjust the mechanism (31) with the adjusting nut,
so that cam displacement from rest position “a” to
maximum position “b” is 60° (Fig. 13).
N
OTE: The adjusting nut (4) is accessed via the plug
port (3) on the left-hand cover (Fig. 14).
51. Reconnect the control.
52. Adjust the handbrake control.
See out operations 63 to 69.
If the rear of the cab is raised, carry out operation
13 in reverse.
53. Refit the right-hand hydraulic cover (see chapter 9).
54. Raise the tractor using a jack.
55. Refit the wheels.
56. Remove the stands and the jack.
57. Tighten wheels to a torque of 400 - 450 Nm.
58. Remove the chocks at the front of the tractor
between the frame and the front axle.
Fig. 12
Fig. 13
Fig. 14