Komatsu PC160LC-7 Main Control Valve Assembly 723-57-16101

This high-precision multi way control valve assembly (main distribution valve/distributor), with core original part number 723-57-16101, is fully compatible and replaces part number 723-57-16100. This assembly serves as the core center for hydraulic fluid power distribution and logic control of the entire machine, specially designed for Komatsu medium-sized core excavators, perfectly matching 16 ton main models such as PC160-7 and PC160LC-7. The product is designed with high precision for the internal slide valve flow channel based on first principles, fully bearing the high-pressure flow impact under composite action, ensuring absolute certainty of the actuator action. The physical dimensions of the product packaging are approximately 640mm × 460mm × 490mm, with an overall net weight of approximately 125kg. The original factory standard position is precisely aligned.

"Extreme dust-free and error proof (core pit avoidance): The unpacking and installation environment needs to be treated with noise reduction and dust removal. Before connecting the pipeline, all joints must be thoroughly cleaned. The main valve pipeline is intricate and complex. When disassembling, each guide pipe and main oil pipe must be rigidly numbered and marked, and it is strictly prohibited to connect them in a staggered manner to prevent system logic disorder.

Symmetrical tightening of torque: The installation bolts of the valve body and high-pressure flange bolts must be tightened in stages and symmetrically cross tightened strictly according to the original factory's specified torque using a torque wrench to avoid local stress that may cause slight deformation of the valve body and blockage of the valve core.

Low pressure full stroke exhaust: After installation and confirming the oil level, the engine must be kept idling for 15 minutes for the first ignition. Subsequently, control the boom and arm to perform several full stroke slow reciprocating movements, thoroughly exhaust the air inside the circuit, and confirm the thermodynamic stability before gradually applying the working load."