SERV1851 02/08
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Text Reference Boom, Stick, and Bucket Circuits
311D / 312D / 314D HYDRAULIC SYSTEM STICK CIRCUIT COMPONENTS
Stick Cylinder
Stick 1
Right NFC Main Relief Left NFC
Stick Drift Reduction Valve
Straight Travel
Stick Regen Pilot Manifold
Drive Pump
Idler Pump
Stick 2
To Idler Pump Control Valve To Drive Pump Control Valve
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Stick Circuit The stick circuit consists of the following major components: - stick 1 spool - stick 2 spool - stick cylinder - stick regeneration valve - stick unloading valve (part of stick regeneration valve) - stick lowering control valves (not shown) - stick drift reduction valve NOTE: The stick priority systems and the stick drift reduction valve will be discussed in more detail later in this presentation.
