New Holland T7030 Service Manual page 69

DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
4. If the display value deviates slightly from the desired
value, adjust the flow control valve.
If the display value is too high, check whether the
control pin of the flow control valve is sticking.
NOTE: A full turn changes the pressure by about 16 bar (
232 lbf.in2).
5. Remove the connection (2) 297604 . Connect the
Load Sensing line (1) again.
High pressure standby
6. Connect a pressure gauge with display range 0 - 255
bar ( 0 - 3600 lbf/in2) 293244 to the remote connec-
tion of the control unit. Use the oil coupling 5101741,
fitting 297606 , fast coupling sleeve 297240 , fast
coupling plug 291924 and hose 292246 .
Set the engine speed to 1500 rev/min.
7. Pull the relevant control unit control lever and hold in
the Raise position.
The displayed pressure value must rise to 210±5
bar ( 3046±73 lbf.in2). This is the 'high pressure
standby'.
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