Hitachi Zaxis Zx 120-3 Excavator Service Repair Manual
Hitachi Zaxis ZX 130L-3, 135US-3, 135USK-3, 135USL-3, Excavator Service Manual
The Hitachi Zaxis Zx 120-3 technical manual contains service, maintenance, and troubleshooting A full line of buckets is offered to meet a wide variety of applications. Digging forces are with power boost. The buckets have an adjustable bushing for side clearance, except for the ditching bucket. Tooth selection includes either the John Deere Fanggs, Standard, Tiger, Twin Tiger, Abrasion panel, or Flare tooth, or the ESCO Standard, Tiger, Twin Tiger, or Flare tooth. Replaceable cutting edges are available through Hitachi parts. Optional side cutters add 6 inches to bucket widths. Capacities are SAE heaped ratings.
This professional technical manual contains service, maintenance, and troubleshooting information for your HITACHI ZAXIS ZX 120-3 EXCAVATOR. It is the manual used in the local service repair shop. The HITACHI ZAXIS ZX 120-3 EXCAVATOR manual is guaranteed to be fully useful to save your precious time.
If you’re looking for the Hitachi Zaxis ZX 120-3 Excavator Workshop Service Repair Manual, chances are you need detailed technical guidance to keep your machine running smoothly. This manual is designed for operators, mechanics, and technicians who want step-by-step instructions for maintenance and repairs.
Hitachi Zaxis Zx 120-3 Excavator Service Repair Manual
Here’s what you can expect inside:
1. General Information
Safety guidelines
Specifications
Machine identification details
2. Routine Maintenance
Service intervals
Lubrication charts
Fluid capacities and recommended oils
3. Engine Section
Disassembly and assembly
Fuel system troubleshooting
Cooling and lubrication system instructions
4. Hydraulic System
Pump and valve servicing
Hydraulic circuit diagrams
Cylinder testing and repair procedures
5. Electrical System
Wiring diagrams
Battery and starter checks
Diagnostic codes and solutions
6. Power Train and Undercarriage
Transmission service
Final drive disassembly
Track frame and roller maintenance
7. Attachments and Controls
Boom, arm, and bucket repair
Control lever adjustment
Quick coupler servicing
8. Troubleshooting and Diagnostics
Common problems with step-by-step solutions
Error code reference
Testing procedures with tools required



