Hitachi EX1900-6 Excavator Operational Principle Technical Service Manual
281 pages · Publication TO18KE-00
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- Models
- EX1900-6
- Manual type
- Operational Principle Technical Service Manual
- Pages
- 281
- Publication
- TO18KE-00
- Condition
- Brand new
What's inside
From the manual's own table of contents: 3 sections, 86 entries. See sample pages (PDF, 1119 KB)
GENERAL28 topics
- Specifications
- Working Range (Loading Shovel)
- Working Range (Backhoe)
- Main Components (Overview)
- Around Pump
- Pilot Panel (Operation Circuit)
- Pilot Panel (Back of Control Valve)
- Undercarriage
- Fast-Filling Panel
- Electrical System (Overview)
- Engine
- Around Radiator
- Water Tank
- Air Cleaner
- Oil Cooler
- Swing Device
- Control Valve
- Travel Device
- Center Joint
- EHC Valve (Main Pump Control)
- EHC Valve (Electrical Lever Control)
- Sliding Fold-In Ladder
- Auto-Lubrication Device
- Engine Accessories
- Hydraulic Equipment
- Electrical Parts
- Filter
- Others
SYSTEM28 topics
- Outline
- MC: Main Controller
- ELU: Electric Lever Control Unit
- IDU: Information Display Unit
- (Engine Controller)
- DLU: Data Logging Unit
- CSU: Contamination Sensing Unit
- Monitoring Unit)
- Engine Control
- Pump Control
- Auto-Lubrication Control
- Oil Cooler Fan Motor Speed Control
- Wiper Control
- Travel Mode Control
- Pilot Shut-Off Control
- Control
- Swing Stop Control
- Main Circuit
- Pilot Circuit
- Pump Transmission Oil Cooling Circuit
- Oil Cooler Fan Motor Circuit
- Circuit
- (Key Switch:OFF)
- Accessory Circuit (Key Switch: ACC)
- Engine Start Circuit
- Charging Circuit (Key Switch:ON)
- Engine Stop Circuit
- Surge Voltage Prevention Circuit
COMPONENT OPERATION27 topics
- Main Pump
- Regulator
- 4-Unit Pump
- Swing Motor
- Swing Parking Brake
- Swing Reduction Gear
- Valve Unit
- Pilot port Location
- Hydraulic Circuit
- Overload Relief Valve
- Make-Up Valve
- Electric Lever
- EHC Valve (For Electric Lever Control)
- Port Location
- Construction
- Operation
- Travel Motor
- Brake Valve
- Parking Brake
- Travel Reduction Gear
- Air Conditioner
- Auto-Lubrication System
- EHC Valve (For Main Pump Control)
- Oil Cooler Fan Motor
- Accumulator
- Swing Bearing
- Adjuster Cylinder
Inside this manual
Real pages from this operational principle technical service manual (281 pages). Open the sample pages (PDF, 1117 KB)
- Troubleshooting, page 26: GENERAL / Component Layout
- Specifications, page 110: SYSTEM / Control System
- Diagram, page 262: COMPONENT OPERATION / Others (Undercarriage)
- Foldout diagram, page 276
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the EX1900-6 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, 281 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).