MASSEY FERGUSON 5400 - Page 286

Massey Ferguson 5400 - Issue 1.a
06C01.4
GPA20 brake piston
B . Disassembly
1. Remove the trumpet housing. (see chapter 6).
2. Remove the disc (1), the sun gear (2), and locating
pin (3) (Fig. 1).
3. Remove the brake plate (1) (inside the trumpet
housing) (Fig. 2).
4. Remove the screws (3) (Fig. 3) with a locally made
socket.
Take the piston (1) out of the housing with a jet of
compressed air applied to the union (2) (Fig. 4).
N
OTE: To facilitate access to the union (2), if neces-
sary, disconnect the 4-speed LSPTO control (if
fitted) and position the union correctly.
5. Remove the O'rings (1) (2) on the housing and
discard them (Fig. 5).
Fig. 1
Fig. 2
Fig. 3
Fig. 4