Hitachi Zaxis ZX160LC-3, ZX180LC-3 & ZX180LCN-3 Excavator Manual Set 2006–2012 (P/N TT1T1-E-00)

The technical volumes explain system operation, performance testing and fault isolation. The workshop volume carries the work into component disassembly, assembly and repair standards.

Engine repair scope: The workshop engine chapter covers removal and installation. Internal engine repair requires the separately referenced engine shop manual. The operator’s manual, machine and engine parts catalogs, and engine operation manual are also separate references and are not included.

PDF Languages, Search and Diagram Detail

Text search and drawings: The three manual PDFs have searchable body text and embedded bookmarks. The circuit-diagram attachment has bookmarks but no searchable text. Small wiring codes, connector numbers and hydraulic port labels require zooming in the detailed drawings.

The RAR download contains four printable PDFs totaling 1,558 pages. This total includes the original cover spreads, blank and note pages, three revision-request forms, and the attached-diagram list.

Excavator Controls, Performance Tests and Component Repair

The following selected contents highlight the main diagnostic and repair areas. Other topics include cab-glass dimensions and air-conditioner troubleshooting.

• Electronic and hydraulic controls: CAN communication between the MC, ECM, ICF and monitor unit, plus engine, pump and valve control, fuel injection, EGR, and pilot/main hydraulic circuits.

• Factory performance testing: Engine-speed, compression and valve-clearance checks; travel, mistrack, swing, drift and cylinder-cycle tests; pilot/main pressure checks, pump-flow measurement, and motor leakage/drainage tests.

• Fault-code diagnosis: Monitor service functions, MC/ECM/ICF code tables, CAN-harness checks, Dr. ZX and e-Shovel data functions, symptom-to-component charts, and exchange inspection.

• Hydraulic component repair: Step-by-step removal, disassembly and reassembly for the pump device and regulators, control-valve 4- and 5-spool sections, swing device and motor, pilot valves, and hydraulic cylinders.

• Undercarriage repair: Travel-device and motor overhaul, brake-valve and center-joint service, plus swing-bearing, track-adjuster, idler, roller and track repair with inspection standards.

• Diagnostic drawings: Electrical diagrams, connector and harness views, and hydraulic circuits covering standard arrangements, 2-piece booms, hose-rupture valves, breaker/crusher piping, and 2-speed flow-combining piping.

Hitachi wrote these manuals for experienced technicians; the Dr. ZX procedures, hydraulic tests and major overhaul work assume suitable shop equipment and hydraulic/electrical diagnostic experience.

Control Circuits and Fault Isolation

Starting, charging, security-lock, pilot shut-off and engine-stop circuits receive separate treatment. Electrical inspection includes fuse and fusible-link checks, battery and alternator checks, continuity testing, voltage/current measurements, and test-harness methods.

The performance-test procedures connect measured results with factory standards so a technician can evaluate machine functions before selecting repair work. The engine-speed check is particularly relevant: the manual explains that an incorrect engine speed makes subsequent performance data unreliable.

Emergency boom lowering and attachment-pilot pressure release have dedicated procedures. The e-Shovel sections cover operating reports, accumulated hours, ICF data transfer and controller setup through Dr. ZX.

Pump Overhaul and Hydraulic Repair Standards

The ZX160LC-3 and ZX180LC-3 pump devices share their basic construction but use different regulators. Main-pump work includes shaft and bearing service; the regulator, solenoid valve and pilot pump have their own component coverage.

Specified tools include ST 1470/ST 1471 for pump-shaft removal and ST 3058 for bearing-nut work. Pump P-Q diagrams, sensor ranges, adjustment tables, pressure/flow specifications, clearances and wear limits support testing and inspection.

The workshop instructions warn that trapped air can damage pumps, hydraulic motors and cylinders when the machine is started. Pump assembly also includes a specific caution about shaft splines damaging the oil seals.

Travel Devices and Front-Attachment Differences

The specifications distinguish the narrower 180LCN undercarriage from the 180LC. Travel-device sections group the 160LC and 180LCN together and show the 180LC arrangement separately.

Front-attachment material includes mono-boom removal, pin and bushing standards, cylinder overhaul, and check-valve service. The workshop’s 2-piece-boom removal and upper-boom-cylinder repair procedures are specifically assigned to the ZX180LC-3.

Swing-motor brake-piston work identifies ST 1468, while swing-bearing lifting uses ST 0050. Component weights, lifting information and component-specific torque tables accompany the repair procedures.

The diagram attachment supplies engine, cab and monitor-unit harness drawings alongside the electrical diagram and connector views. Its hydraulic sheets distinguish the model classes and show the optional piping arrangements.

Follow the manual’s pressure-release, support and lifting requirements before opening hydraulic circuits or handling the cab, counterweight, pump assembly, swing device, engine, undercarriage or front attachment.

Examples from the Engine Test Data

For the ZAXIS160LC-3 and ZAXIS180LC-3 engine-test data, intake and exhaust valve clearance is 0.15 mm with the engine cold.

The compression performance standard is 3.04 ± 0.2 MPa at 200 rpm. The associated compression-test procedure calls for a warmed engine.