Komatsu PC150-6K / PC150LC-6K Hydraulic Excavator Factory Service Manual 2001 (P/N UEBM000701)

• Covers 2001 Komatsu PC150-6K and PC150LC-6K hydraulic excavators, S/N K32001 and up, K34001 and up (including 1.85m, 2.25m, 2.62m, and 2.9m arm variants).
• Original OEM publication UEBM000701, dated September 2001.
• Contains 56 individual section diagrams, 4 primary hydraulic system schematics, and 12 standard bolt-torque reference tables.
• Details crucial systems and sections including Testing and Adjusting, Maintenance Standard, the Electronic control system, the Machine monitor system, EPC solenoid valves, PPC shuttle valves, and TVC valves.
• Supplies visual and diagnostic aids like Electrical wiring diagrams, hydraulic circuit diagrams, troubleshooting charts, service code tables, conversion tables, and table of judgement standard values.

Technical Structure and Workshop Application

Mechanics need accurate reference data to minimize downtime. This 688-page factory workshop PDF document serves as the primary technical reference for the Dash-6 series chassis and CLSS hydraulic architecture. It organizes component data by system, detailing the Komatsu SA4D102E-1 engine interface and power train layouts, including the HMV110-2 travel motor. You get clear, descriptive breakdowns of major components like the swing machinery, center swivel joint, and track frames. It outlines the precise disassembly and assembly sequences essential for heavy equipment repair.

By providing the exact factory testing and troubleshooting procedures, this manual empowers shop technicians to diagnose complex electrical or hydraulic faults directly on the floor, effectively bypassing expensive dealership diagnostic fees. It walks you through highly specific step-by-step tasks such as testing the clearance of the swing circle bearing, checking and adjusting the governor motor lever stroke, properly bleeding air from the hydraulic circuit, and accurately measuring internal oil leakage.

Specification Highlights and Safety Parameters

Accurate system parameters are critical for safe machine operation. Because heavy hydraulic systems operate under extreme stress, always safely release residual circuit pressure and rely on authoritative OEM specifications before adjusting relief valves or performing hands-on work. This manual highlights exactly those tolerances. The main hydraulic pump is rated for a delivery rate of 276 L/min at a set pressure of 34.81 MPa. Normal circuit main relief valve settings sit at 31.85 MPa, peaking at 34.79 MPa. Theoretical delivery rates for the travel motor range from 50 cc/rev (minimum) to 80 cc/rev (maximum). You will also find critical tightening values for structural connections, such as 3280 Nm for 39mm fasteners.