MASSEY FERGUSON 5400 - Bleeding the Trailer Brake Circuit

Massey Ferguson 5400 - Issue 1.a
09I01.15
Unassisted brake master cylinders
H . Bleeding the trailer brake circuit
If the tractor is fitted with trailer braking, it is strongly
recommended to simultaneously bleed the main brake
and trailer brake circuits.
To carry out this bleeding procedure, use the same
equipment and methods as described in paragraph G
for the bleeding of the main brake circuit, but respect
the following additional points:
• Open (Fig. 14):
- the two bleed screws (1) of the main brake;
- the trailer brake screw (2).
• When the bleeding is complete, tighten in the following
order (Fig. 14):
- the left-hand brake bleed screw (1);
- the right-hand brake bleed screw (1);
- the trailer brake bleed screw (2).
• Check the trailer braking pressure on the quick
disconnect coupling located at the rear of the tractor
(see chapter 9). If this pressure is not correct, elimi-
nate any air leaks in the circuit and repeat the
bleeding procedure.
• Carry out a road test.
Fig. 14