723-19-13501 723-19-12200 KOMATSU PC30MR-2 MINI EXCAVATOR Control Valve

This high-precision micro multi way control valve assembly (main control valve/distribution valve) has core original part numbers including 723-19-13501, 723-19-13503, 723-19-12201, and 723-19-12200, with perfect generation replacement and platform interchangeability between each original code. As the core control center of multi action composite logic, this assembly is specially designed for Komatsu's high-quality micro hydraulic excavator, perfectly matching Komatsu PC30MR-2 and other 3-ton industry core star micro excavator models. The product is based on first principles optimization of the internal compact large flow slide valve flow channel, perfectly carrying the flow load under micro excavation high-frequency steering and fine operation conditions, ensuring absolute certainty of control response. The physical dimensions of the product packaging are approximately 420mm × 280mm × 310mm, with an overall net weight of approximately 35kg. The original factory standard hole positions are precisely aligned.

"Extreme error prevention and dust-free (core pit avoidance): Noise reduction and dust removal treatment should be carried out in the unpacking and lifting environment. The space of the micro excavation main valve pipeline is narrow and the distribution is complex. When disassembling, each guide pipe and main oil pipe must be rigidly numbered and marked. It is strictly prohibited to connect them in a staggered manner to prevent the action logic from being reversed or local high pressure from penetrating the internal pilot valve core in reverse.

Symmetrical tightening with torque: The installation bolts of the valve body and the interface of the high-pressure oil pipe must be tightened in multiple stages and symmetrically in accordance with the original torque standard using a torque wrench to prevent excessive local stress from causing slight stress deformation of the cast iron valve body and causing valve core jamming.

Low pressure full stroke exhaust: After installation, the engine must be idle and run at low pressure for 15-20 minutes for the first ignition. Subsequently, control the working device to perform several slow and full stroke reciprocating actions, confirm that there are no abnormal bubbles or noises, and that the thermodynamic state is stable before gradually applying normal operating loads."