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57 l/min Open Centre tests
Checking the flow rate of the pump
C
: When carrying out tests, the rear
AUTION
axle must not be placed on chocks with the front
axle (4WD) engaged.
- Connect a flowmeter between the 15 micron filter(s)
(1) outlet located to the front right-hand side of the
rear axle, and the supply pipe (2) to the Orbitrol spool
valve
(Fig.
7).
I
: Check that the flowmeter load valve
MPORTANT
remains fully open throughout the test.
- Also connect a pressure gauge to the low pressure
diagnostics connector (1) screwed to the top of the
right-hand hydraulic cover, at the front
- CheckQ3.
Engine
P4
speed
(bar)
(rpm)
±
1000
18
2200
±
18
09K01.10
(Fig.
8).
Q3
Correct
(l/min)
position
±
steering at
1
16,0
1
neutral
±
steering at
1
32,7
2
neutral
Massey Ferguson 5400 - Issue 1.a
Fig. 7
Fig. 8
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