Illustrated factory Service Manual for Hitachi Crawler Excavators Models UH501.

This manual will assist you in diagnosing, analyses, testing, and repair for your crawler excavator.
You can use a Windows, Mac, or Android device to view this manual. You only need to have a PDF reader installed.

Covered Models:
   UH501

Format: PDF, 438 pages
Language: English
Table of Contents:
   FOREWORD
   CARE OF THE HANDLING
   SPECIFICATIONS
   OPERATIONAL PRINCIPLE
      General
      Air Circuit
      Main Pump and Regulator (KVC932-163L-R1321 Piston Pump)
      Swing Pump (KVC925-221L R291 Pump and Regulator)
      Pilot Pump (IP Gear Pump)
      Control Valve (MVPH45 Control Valve)
      Pilot Valve
      Travel Brake Valve (HVBC10A Brake Valve)
      Travel Motor (HTM500G1 Motor)
      Swing Motor (MX750 Motor)
      Flushing Valve
      Reducing (Ree Reducing Valve)
      Accumulator
      Monitor Troubleshooting
      UH501 Monitor
   DISASSEMBLY and ASSEMBLY
      How to Disassembly/Assembly Hydraulic Equipment
      Main Pump (KVC932 Piston Pump)
      Regulator (R1321 Regulator)
      Pilot Pump (KPR Gear Pump)
      Swing Pump (KVC925-221L Pump)
      Cylinder
      Control Valve (MVPH40 Control Valve)
      Pilot Valve (HVP02C)
      Pilot Valve (HVP02D)
      Travel Motor (HTM800G Motor)
      Swing Motor (MX750 Motor)
      Accumulator
   MAINTENANCE STANDARD