Standen TSP 1900, Руководство оператора

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Hydraulic Systems
Circuit 1 – Auxiliary Hydraulics
Circuit 1 is powered from the tractor hydraulics and delivers oil to the hydraulic rams and
RH boom motor. A minimum supply of 50 litres/minute (80 litres/minute maximum) is fed
through the pressure filter (item 1, fig 29) into the inlet section of the auxiliary valve bank
(see fig 21).
The RH boom motor valve section (item 9, fig 21) has priority over the ram services. The
return oil from the valves and motor recombines and is returned to the tractor, ideally
through a low back-pressure or free-flow return coupling. No separate relief valve is
fitted to the auxiliary circuit, the system relies totally on the tractor relief valve.
The auxiliary valve bank is capable of operation with open centre, closed centre, or load
sensed tractor systems. For closed centre configuration tractors, turn the screw (item
10, fig 21) clockwise until fully closed. For open centre, turn the screw anticlockwise until
fully out.
Item 1 = RH digger lift Item 6 = RH boom centre
Item 2 = LH digger lift Item 7 = RH boom top
Item 3 = Axle steer Item 8 = Valve inlet section
Item 4 = LH boom centre Item 9 = RH boom motor
Item 5 = LH boom top
The flow rate from all the valve sections are proportionally controlled and are manually
adjustable. To adjust, loosen the solenoid retaining screws x4 (item 11, fig 21) and turn
the ring (item 12, fig 21) clockwise to decrease the flow and anti-clockwise to increase
the flow. Retighten the solenoid screws before operating the valve.
OPERATION 1.22
Fig 21