Disassembling And Reassembling A Lift Ram - MASSEY FERGUSON 5400 Service Manual

H . Disassembling and reassembling
a lift ram
Preliminary operations
71. Run the engine and lower the lower drawbars to
their maximum using the ELC.
72. Disconnect the feed pipe, and remove and drain
the ram of its oil.
Disassembly (Fig.
73. Remove the 90° union (1) fitted with its O'ring.
74. Pull the shaft of the ram (5) until the snap ring (4)
appears in port O of the union.
75. Insert a screwdriver into this port and while turning
the cylinder ram push the snap ring into the
V-shaped recess.
76. Remove the ram and the snap ring (4). Drive off
scraper seal (2) and sealing ring (3) (systematically
discard these three parts).
Reassembly
I : Carefully clean all components. Replace
MPORTANT
any components found to be scratched or distorted. In
case of jamming or serious scratching of the functional
components, replace the hydraulic ram.
77. Dry all components using compressed air.
78. Lubricate the components with clean transmission
oil.
79. Carry out the assembly of the ram. Carry out the
operations 72 to 76
I :
MPORTANT
- Always fit new snap rings and new seals.
- Use a suitable fixture to fit the parts home without
damaging the seals.
- Fit the ram into the ram body with care.
Massey Ferguson 5400 - Issue 1.a
19)
in reverse order.
GPA20 hitch / Linkage
Final operations
80. Lubricate the upper and lower pins of the ram with
"Anti-Seize" grease and refit them. Reconnect the
feed pipe.
81. Run the engine. Using the ELC, raise and lower the
lift arms to their maximum positions several times.
82. Check that the hitch is operating correctly and that
there are no oil leaks around either cylinder or ram.
Fig. 19
06F01.15