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NEWHOLLAND T7030.40.50.60 Repair Mannual

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DISTRIBUTION SYSTEMS ­ PRIMARY HYDRAULIC POWER SYSTEM<br />

Hydraulic Lift Cylinders<br />

BAIL06CCM085ASA 21<br />

There are two external lift cylinders, one per lift arm, anchored to points cast into the rear axle centre housing, Figure<br />

22 . These are available in three sizes/lift capacities 80 mm., 90 mm and 100 mm .<br />

Suspended front axle control valve<br />

BSD2169A 22<br />

Located on the left hand side of the tractor and attached to the suspension cylinder. The suspension control valve<br />

receives high pressure oil, via the pressure reducing priority valve and the load levelling valve , and with the use of<br />

processor controlled PWM valves (1) controls oil to a cylinder, attached between the front axle and front support, to<br />

provide a hydraulically controlled suspended front axle.<br />

BAIL06CCM039ASA 23<br />

Hydraulic system filters<br />

There are two different types of hydraulic filters used on all models.<br />

(1), Charge pressure filter<br />

(2), Main system filter<br />

2 3/5/2007<br />

A.10.A / 18

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