Hitachi ZX110-3 ZX120-3 ZX135US-3 Class Excavator Workshop Manual

Description

Hitachi ZX110-3 ZX120-3 ZX135US-3 Class Excavator Workshop Manual

This Hitachi ZX110-3 ZX120-3 ZX135US-3 Class Excavator Workshop Manual is the shop-floor repair reference covering the ZX110-3, ZX110M-3, ZX120-3, and ZX135US-3 class hydraulic excavators (part number W1H7-E-00). It is written for a technician who already understands excavator repair and needs the exact removal, disassembly, assembly, and maintenance-standard data Hitachi built this machine to.

File Details

• Manual type: Workshop Manual (repair/maintenance section of the full service manual set)
• Brand/models: Hitachi ZX110-3 class, ZX110M-3, ZX120-3 class, ZX135US-3 class hydraulic excavators
• Language: English
• Page count: 522 pages
• File format: PDF
• Document/part number: W1H7-E-00
• Publication date: March 2008
• Publisher: Hitachi Construction Machinery Co., Ltd.

Chapters Covered

• Section 1 General –
  • Group 1 Precautions for Disassembling and Assembling
  • Group 2 Tightening (Tightening Torque Specifications, Torque Chart, Piping Joint, Periodic Replacement of Parts)
  • Group 3 Painting
  • Group 4 Bleeding Air from Hydraulic Oil Tank
• Section 2 Upperstructure –
  • Group 1 Cab
  • Group 2 Counterweight
  • Group 3 Main Frame
  • Group 4 Pump Device
  • Group 5 Control Valve (4-Spool and 5-Spool)
  • Group 6 Swing Device
  • Group 7 Pilot Valve
  • Group 8 Pilot Shut-Off Solenoid Valve
  • Group 9 Signal Control Valve
  • Group 10 2-Spool Solenoid Valve Unit
  • Group 11 Engine
• Section 3 Undercarriage –
  • Group 1 Swing Bearing
  • Group 2 Travel Device (including Travel Motor and Brake Valve)
  • Group 3 Center Joint
  • Group 4 Track Adjuster
  • Group 5 Front Idler
  • Group 6 Upper and Lower Roller
  • Group 7 Track
• Section 4 Front Attachment –
  • Group 1 Front Attachment (Monoblock Boom, standard dimensions for arm/bucket and arm/boom connections)
  • Group 2 Cylinder (Boom and Bucket Cylinder disassembly)

Across these four sections, the ZX110-3 ZX120-3 ZX135US-3 Workshop Manual walks a technician from safety and shop precautions through every major upperstructure, undercarriage, and front-attachment component, giving the removal/installation sequence, the disassembly and assembly order, and the maintenance-standard wear limits needed to put the machine back into factory-correct condition.

What’s Inside for the Technician

The Hitachi ZX110-3 class, 120-3 class, and ZX135US-3 class Workshop Manual gives you the tightening torque specifications for the whole machine — engine mounts, hydraulic tank, control valve, swing bearing, travel device, track shoe, and roller mounting bolts are all listed by bolt diameter and wrench size, with separate torque tables for the ZX110-3/120-3 class and the ZX135US-3 class where the hardware differs. The pump device, control valve, swing device, and signal control valve sections carry full exploded-view disassembly and assembly procedures with numbered parts illustrations, so you can follow each step against the same drawing Hitachi’s own technicians use.

Undercarriage work is covered in equal depth: swing bearing removal, travel device and travel motor disassembly, center joint service, track adjuster, front idler, and upper/lower roller procedures each carry their own maintenance-standard tables giving the standard and allowable-limit dimensions in both metric and imperial units, so wear parts can be measured and a replace/reuse decision made with confidence rather than guesswork. The front attachment section adds standard pin-and-bushing dimensions for the boom, arm, and bucket connections across the ZX110-3 and ZX120-3 class machines, plus boom and bucket cylinder disassembly.

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Why Technicians Rely on This Manual

Skipping the correct torque value or maintenance-standard clearance on a hydraulic excavator this size risks a comeback repair, a leaking joint, or a bearing failure that costs far more than doing the job right the first time. This Hitachi ZX110-3 ZX120-3 ZX135US-3 Class Workshop Manual gives you those exact numbers — not estimates — straight from Hitachi’s own documentation, for every major system on the machine.

Once you download this Hitachi ZX110-3 ZX120-3 ZX135US-3 Class Workshop Manual, it’s yours to keep permanently. It’s delivered instantly as a PDF, so there’s no shipping wait and no physical binder to lose in the shop. Open it on a laptop, tablet, or phone at the machine, or print out only the pages you need for the job at hand.