Komatsu PC50UU-1 Mini Excavator Shop Manual

Technical reference covering the PC50UU-1 mini excavator, including structure, function, testing, disassembly, and maintenance. Part Number: SEBM020U0104.

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Komatsu Models Covered & Key Technical Specifications

Structured Maintenance Manual: Komatsu PC50UU-1 Shop Manual - Maintenance & Repair Procedures Specification-Guide Komatsu PC50UU-1 (SEBM020U0104) - Mini Excavator Documented Containment Volume: 45 L establishes the minimum hydraulic fluid capacity. // Calibrated Fit Tolerances: For optimal seal performance, ±0.025 mm defines the acceptable deviation for shaft fitment. // Authorized Voltage Specs: 12 VDC -- indicates the standard electrical system operating voltage. // Maximum System Performance: The engine requires 252 kg for its total net mass. // System Fluid Levels: The engine oil pan capacity supports 5.1 L for routine operation. // Principal Net Mass: The operator's cab requires 765 kg to ensure structural integrity. Logic.

Technical Specifications
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Document Number / Seller:
29590 / Charles Wilson
File Size:
5.88 MB
File Type:
PDF
Language:
English
Pages:
189
Printable:
Yes
Category:
Mini Excavator
Last updated / verified
Jul 24, 2025

Komatsu Manual Features & Content Preview

Structured Maintenance Manual: Komatsu PC50UU-1 Shop Manual - Maintenance & Repair Procedures Specification-Guide

Product-Line: Mini Excavator // Model-Designation: PC50UU-1 / Logic // Diagnostic-Area: Maintenance & Repair Procedures.

Tool requirements are listed for the Komatsu PC50UU-1. Installation guidelines are provided for various components. Maintenance guidelines are included for routine upkeep. OEM guidelines are included for adherence to manufacturer standards. Transmission service information covers relevant aspects.

This manual documents torque specifications for component alignment retention to ensure proper functionality.

Component Baseline Validation-Data
Engine Assembly 252 kg 252 kg
Hydraulic Tank 70 L 52 L
Fuel Tank 50 L 50 L

Following OEM groupings, the manual includes an overview of: Structure and Function, Testing and Adjusting, Disassembly and Assembly, and Maintenance Standard.

Manual FAQ, Purchase & Download Details

Calculate the **precise** pressure specifications for the hydraulic system. keyboard_arrow_down

220+7/-0 kg/cm² is the set pressure for the 3-spool valve and 210+7/-0 kg/cm² for the 6-spool valve (2-spool side, 4-spool side).

What values for **proper** assembly sequence are listed for the hydraulic components? keyboard_arrow_down

For the 6-spool control valve assembly, the sub-assembly of dust seal and plate requires a specific sequence involving parts 10 and 11.

Assess the **standard** service interval parameters for lubrication. keyboard_arrow_down

5.1 L is the capacity for the engine oil pan, with interval changes dependent on fuel sulfur content, ranging from 1/2 to 1/4 of the regular interval.

What components are **necessary** for the system architecture of the PC50UU-1? keyboard_arrow_down

The hydraulic system includes a main relief valve, multiple control valves (e.g., 6-spool, 3-spool), safety valves, and suction valves, among others.

Confirm the **recommended** tool requirements for testing and adjusting operations. keyboard_arrow_down

A thermistor kit (799-101-6000) is recommended for water and oil temperature checks, capable of measuring between -50 to 1,200°C.

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