Main Control Valve Assembly For E325B E320B Excavator 121-1416 107-7070
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Main Control Valve Assembly for E325B E320B Excavator 121-1416 107-7070 Exploded view drawing 325B Excavator Main Control ValveAssembly Compatible Model: CAT325B CAT320BExcavator Original Part Number: 121-1416 107-7070 Maintenance & Replacement Procedure Release hydraulic system pressure: Turn off engine and pull all operating levers several times to release residual pressure. Disconnect power supply for safety. Remove distribution valve: Gradually remove hydraulic lines and