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Category: 308C

308C

308C CR Excavator Hydraulic System – Displacement Change Valve

Posted on April 8, 2021 by sam

Small Displacement Change Operation Illustration 1 g00875075 Travel motor (partial view) (1) Swashplate (2) Piston (4) Passage (5) Displacement change valve (6) Pilot port (automatic…

308C

308C CR Excavator Hydraulic System – Travel Motor

Posted on April 8, 2021 by sam

Illustration 1 g00757110 Travel Motor (1) Counterbalance valve (2) Drain port (3) Port (4) Pilot port (automatic travel speed change) (5) Port (6) Cover (7)…

308C

308C CR Excavator Hydraulic System – Travel Hydraulic System

Posted on April 8, 2021 by sam

Hydraulic Schematic For Forward Travel Illustration 1 g00875016 (1) Left travel motor (2) Right travel motor (3) Swashplate (4) Motor rotary group (5) Orifice (6)…

308C

308C CR Excavator Hydraulic System – Cylinders (Boom, Stick and Bucket)

Posted on April 8, 2021 by sam

Illustration 1 g00756146 (1) Head end port (2) Boom cylinder (3) Cylinder (4) Piston rod (5) Snubber (6) Piston (7) Rod end port (8) Stick…

308C

308C CR Excavator Hydraulic System – Bucket Hydraulic System

Posted on April 8, 2021 by sam

When the bucket is operated for CLOSE or DUMP, only the left pump oil is supplied to the bucket cylinder. When the control lever is…

308C

308C CR Excavator Hydraulic System – Control Valve (Stick Lowering)

Posted on April 8, 2021 by sam

Illustration 1 g00802556 Location of stick lowering control valve (1) Stick cylinder (2) Stick lowering control valve The stick lowering control valve is located on…

308C

308C CR Excavator Hydraulic System – Stick Hydraulic System

Posted on April 8, 2021 by sam

Hydraulic Schematic For Stick Circuit Illustration 1 g00875367 (1) Stick cylinder (2) Line (3) Pilot line (4) Main control valve (5) Pilot line (6) Line…

308C

308C CR Excavator Hydraulic System – Control Valve (Boom Lowering)

Posted on April 8, 2021 by sam

Illustration 1 g01027388 Location of boom lowering control valve The boom lowering control valve is located on the head end of the boom cylinder. The…

308C

308C CR Excavator Hydraulic System – Boom Drift Reduction Valve

Posted on April 8, 2021 by sam

Illustration 1 g00865473 Boom drift reduction valve (1) Poppet (2) Passage (3) Drain passage (4) Spool (5) Piston (6) Port (7) Spring chamber (8) Valve…

308C

308C CR Excavator Hydraulic System – Boom Hydraulic System

Posted on April 8, 2021 by sam

Hydraulic Schematic for Boom Raise Illustration 1 g00867873 (1) Boom cylinder (2) Line (3) Port (4) Line (5) Port (6) Pilot Line (7) Port (8)…

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