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Tag: 320C

320C

320C Excavator Hydraulic System – Travel Counterbalance Valve

Posted on July 30, 2021 by sam

Illustration 1 g00701651 Left travel motor and travel counterbalance valve (1) Crossover relief valve (reverse travel) (16) Crossover relief valve (forward travel) (22) Port (supply…

320C

320C Excavator Hydraulic System – Displacement Change Valve

Posted on July 30, 2021 by sam

Small Displacement Change Operation Illustration 1 g00820789 Travel motor (partial diagram) (1) Swashplate (2) Piston (3) Piston chamber (4) Passage (5) Displacement change valve (6)…

320C

320C Excavator Hydraulic System – Travel Parking Brake

Posted on July 30, 2021 by sam

The travel parking brake is built into the travel motor. When the oil delivery from the pump flows to the travel motor, the parking brake…

320C

320C Excavator Hydraulic System – Travel Motor

Posted on July 30, 2021 by sam

Illustration 1 g00682968 Travel motor (1) Drive shaft (2) Stopper (3) Piston (4) Swashplate (5) Slipper (6) Retainer (7) Barrel (8) Piston guide (9) Check…

320C

320C Excavator Hydraulic System – Pilot Valve (Travel)

Posted on July 26, 2021 by sam

Illustration 1 g01232154 Travel pilot control valve (1) Travel lever/pedal (2) Pedal (3) Rod (4) Seat (5) Spring (6) Spring (7) Spool (8) Passage (9)…

320C

320C Excavator Hydraulic System – Travel Hydraulic System

Posted on July 26, 2021 by sam

Travel Control Illustration 1 g00699122 (1) Left travel motor (52) Travel brake valve Illustration 2 g00699126 Final drive (53) Track (54) Sprocket (55) Final drive…

320C

320C Excavator Hydraulic System – Swing Drive

Posted on July 26, 2021 by sam

Illustration 1 g00674518 Swing drive (1) First stage planetary carrier (2) First stage planetary gear (3) Second stage planetary carrier (4) Ring gear (5) Second…

320C

320C Excavator Hydraulic System – Solenoid Valve (Fine Swing)

Posted on July 26, 2021 by sam

Illustration 1 g00479383 Side of swing motor (1) Block (2) Swing motor (3) Anti-reaction valve (4) Anti-reaction valve (35) Fine swing solenoid valve Illustration 2…

320C

320C Excavator Hydraulic System – Relief Valve (Cushion Crossover) – Anti-Reaction Valves

Posted on July 26, 2021 by sam

Illustration 1 g00698830 Swing motor (1) Block (2) Swing motor (3) Anti-reaction valve (left swing) (4) Anti-reaction valve (right swing) At the stop of a…

320C

320C Excavator Hydraulic System – Oil Makeup (Swing System)

Posted on July 26, 2021 by sam

Illustration 1 g00698539 Pressure circuit for SWING RIGHT (partial schematic) (1) Passage (supply oil) (2) Makeup port (3) Relief valve (4) Passage (5) Motor rotary…

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