New Holland T7030 Service Manual page 39

DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
The high-pressure circuit illustrated in PRIMARY HYDRAULIC POWER SYSTEM - Hydraulic schema (A.10.A) com-
prises the following components:
Hydraulic pump unit
The Load Sensing valve with pressure and oil flow control valves, oil pump and priority valve for the steering hydraulics,
intake filter and main oil filter as well as various electrical switches are integrated in the high-pressure variable dis-
placement pump.
Figure 18 shows the main pump unit.
NOTE: The oil pump for the steering hydraulics is shown separately to the main pump unit.
The Load Sensing valve block consists of a high-pressure control valve (1) and an oil flow control valve. The Load Sensing
valve receives hydraulic control signals from the driven components and transmits these to the oil pump, which then matches
the supply volume to the system's requirement for oil.
The Load Sensing valve block is illustrated in Figure 19.
18
BSD2182A_559
19
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