MASSEY FERGUSON 5400 - Page 605

Massey Ferguson 5400 - Issue 1.a
09K01.3
57 l/min Open Centre tests
A . General
The open centre hydraulic circuit comprises two
circuits: the low flow rate circuit and the high flow rate
circuit.
Preliminary operations
Before starting the checks, run the engine at 2000 rpm
to raise the oil temperature to 60 °C (132 °F) minimum.
To make the rise in temperature easier, connect a
flowmeter to one of the auxiliary spool valves other
than the one supplied by the flow rate divider (if fitted)
and limit the flow through the flowmeter.
As soon as the oil temperature exceeds 60 °C (132 °F),
release the lever of the auxiliary spool valve and open
the flowmeter valve to the maximum.
To carry out the tests indicated in this section, the use
of the following equipment, available in the AGCO
network, is recommended:
- MF 3001: Pressure gauge kit;
- MF 3016: 4 - 160 l/min (0.9 - 36 Gal/min) turbine
flowmeter kit, or standard MF 3003 flowmeter;
- MF 3017: Pipe assembly for MF 3016 flowmeter;
- 3582045M1: Female diagnostics coupler.
If the above is not available, use equivalent equip-
ment.
I
MPORTANT: In all cases, ensure the direction of oil flow
is correct in order to avoid any damage to the flowm-
eter.
Also choose pressure gauges, pipes and unions of
sufficient capacity and strength for the tests to be
carried out.