Hitachi ZAXIS 450 450H, 450LC, 450LCH, 460LCH Excavator Operational Principle Technical Service Manual
225 pages · Publication TO16JE02
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What's inside
From the manual's own table of contents: 2 sections, 33 entries. See sample pages (PDF, 512 KB)
GENERAL16 topics
- Specifications
- Working Ranges
- Main Components Layout
- (Overview)
- (Relays and Related Equipment)
- (Monitors and Switches)
- Engine
- Pump Device
- Swing Device
- Control Valve
- Signal Control Valve
- Solenoid Valve Unit
- Travel Device
- Engine Accessories
- Hydraulic Component
- Electrical Component
SYSTEM15 topics
- Outline
- Engine Control
- Pump Control
- Valve Control
- Other Controls
- Pilot Circuit
- Main Circuit
- (Key Switch: OFF)
- (Key Switch: ON)
- Accessory Circuit
- Preheat Circuit (Key Switch: Heat)
- Starting Circuit (Key Switch: Start)
- Charging Circuit (Key Switch: ON)
- Serge Voltage Prevention Circuit
- Engine Stop Circuit
Inside this manual
Real pages from this operational principle technical service manual (215 pages). Open the sample pages (PDF, 512 KB)
- Specifications, page 11: GENERAL / Specifications
- Repair procedure, page 104: SYSTEM / Hydraulic System
- Diagram, page 203: COMPONENT OPERATION / Others (Upperstructure)
- Color page, page 167: COMPONENT OPERATION / Pilot Valve
- Color page, page 93: SYSTEM / Hydraulic System
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 450LC, 450LCH, 460LCH are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
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Manual types
This manual is a operational principle technical service manual. For reference, the three main manual types:
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 225 pages
Quantity one is the manual described above.
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Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).