Hitachi ZAXIS 135US-3 & 225USLC-3 Hydraulic Excavator Operator’s Manual

Description

Hitachi ZAXIS 135US-3 & 225USLC-3 Hydraulic Excavator Operator’s Manual

This is the complete operator’s manual for the Hitachi ZAXIS 135US-3 and ZAXIS 225USLC-3 hydraulic excavators. Whether you are an owner-operator performing daily checks or a fleet manager overseeing maintenance schedules, this manual provides the procedures, safety information, and technical specifications you need to run and care for these machines correctly.

The Hitachi ZAXIS 135US-3 and 225USLC-3 are compact-radius excavators built for demanding work. Operating them without the correct guidance risks damage to the machine, shortened component life, and serious personal injury. This manual is the document that ships with the machine when new and contains every operating procedure, maintenance interval, and safety warning the manufacturer provides.

File Details

• Manual Type: Operator’s Manual
• Brand: Hitachi
• Models Covered: ZAXIS 135US-3, ZAXIS 225USLC-3
• Document Number: EM1U4NA22
• Language: English
• Page Count: 325 pages
• File Format: PDF (instant download)

Chapters Covered

The manual is organized into the following major sections:

• Machine Numbers – Product identification number (PIN) locations, engine serial numbers, travel motor, swing motor, and hydraulic pump identification
• Safety – Recognizing safety information, understanding signal words, following safety instructions, preparing for emergencies, protective clothing, noise protection, machine inspection, cab precautions, handholds and steps, seat adjustment, seat belt use, safe machine movement, operating from the operator’s seat, jump starting, keeping riders off, operational precautions, job site investigation, head guard/ROPS/FOPS equipment, signals for multiple machines, travel direction confirmation, safe driving, rollaway accidents, back-over and swing accidents, keeping personnel clear, never positioning the bucket over anyone, avoiding undercutting, avoiding tipping, never undercutting a high bank, digging with caution, operating with caution, avoiding power lines, lightning precautions, object handling, flying debris protection, safe parking, handling fluids safely, safe transport, safe maintenance practices, warning others of service work, supporting the machine properly, staying clear of moving parts, preventing parts from flying, storing attachments safely, preventing burns, replacing rubber hoses periodically, avoiding high-pressure fluids, preventing fires, evacuating in case of fire, exhaust fumes, welding and grinding precautions, avoiding heating near pressurized fluid lines, avoiding heat on flammable fluid lines, removing paint before welding, asbestos dust, preventing battery explosions, servicing air conditioning safely, handling chemical products safely, and proper waste disposal
• Safety Signs – Locations and descriptions of all safety decals on the machine
• Components Name – Illustrated overview of bucket, bucket cylinder, arm, arm cylinder, boom cylinder, boom, fuel tank, hydraulic oil tank, engine, counterweight, travel device, track, front idler, and cab
• Operator’s Station – Cab features, multi-function monitor, menu screens, hour meter, fuel gauge, clock, menu key, optional function keys, alarm light, optional function display, coolant temperature gauge, operating status icons, alarm occurrence screens, alarm contents, clock setting, attachment selection, pump flow rate adjustment, operating conditions display, fuel rate display, maintenance settings, language settings, switch panel, engine control dial, auto-idle switch, power mode switch, travel mode switch, work light switch, wiper/washer switch, key switch, horn switch, cigar lighter, cab light, and fire extinguisher installation
• Break-In – Initial operating procedures for the first 50 and 100 hours
• Operating the Engine – Daily pre-start inspection, starting the engine in ordinary temperature, starting in cold weather, checking instruments after starting, using booster batteries, stopping the engine, and engine stop switch operation
• Driving the Machine – Driving carefully, travel mode switch, travel alarm, operating on soft ground, raising one track using boom and arm, towing the machine short distances, operating in water or mud, and parking the machine
• Operating the Machine – Control lever patterns (ISO and Hitachi), optional multi-valve control levers, attachment pedals for hydraulic breaker and crusher, pilot control shut-off lever, engine speed control, auto-idle, work mode, work mode selection, power mode, backhoe operation, grading operation, face shovel operation, avoiding abusive operation, operating tips, correct track shoe selection, hydraulic breaker and crusher use, piping for breaker and crusher, secondary relief pressure adjustment, breaker operation precautions, breaker maintenance, crusher operation precautions, attachment weight limits, attachment connection parts, combined arm/bucket roll-in precautions, installing longer attachments, shackle hole usage, overnight storage instructions, emergency boom lowering procedure, and object handling
• Transporting – Transporting by road, loading and unloading on a trailer, and machine lifting procedure
• Maintenance – Correct maintenance and inspection procedures, hour meter checks, correct fuels and lubricants, layout, maintenance guide table, preparing the machine for maintenance, hood and access covers, periodic replacement of parts, greasing (front joint pins, swing bearing, swing internal gear), engine oil level and changes, engine oil filter replacement, pump transmission, swing reduction gear, travel reduction gear, hydraulic system inspection and maintenance, hydraulic oil level check, hydraulic oil change, suction filter cleaning, hydraulic oil tank filter replacement, pilot oil filter replacement, air breather element replacement, hose and line checks, hydraulic fitting service recommendations, fuel system (recommended fuel, refueling, draining fuel tank sump, draining fuel filter, air bleeding procedures, fuel main filter element replacement, fuel pre-filter element replacement, fuel solenoid pump strainer cleaning, fuel hose checks), air cleaner (outer element cleaning, outer and inner element replacement), cooling system (coolant, coolant level check, fan belt tension check and adjustment, coolant change, radiator/oil cooler/inter cooler cleaning, front screen cleaning, air conditioner condenser cleaning, fuel oil cooler cleaning, air conditioner front screen cleaning), electrical system (batteries, electrolyte level check, specific gravity check, battery replacement, fuse replacement, fusible link), and miscellaneous (bucket teeth check, bucket change, face shovel conversion, bucket linkage adjustment, travel lever removal, seat belt check and replacement, windshield washer fluid level check, track sag check and adjustment, air conditioner filter cleaning, air conditioner check, cab floor cleaning, cylinder head bolt retightening, valve clearance inspection and adjustment, engine compression pressure measurement, starter and alternator check, EGR device check and replacement, bolt and nut tightening torque check)
• Maintenance Under Special Environmental Conditions – Maintenance precautions for muddy soil, rainy or snowy weather, ocean proximity, dusty atmosphere, rocky ground, freezing weather, and falling stones
• Storage – Storing the machine, precautions for disconnecting or connecting batteries, and removing the machine from storage
• Troubleshooting – Impossible to start the engine, engine problems, electrical system problems, mode selection problems, control lever problems, and hydraulic system problems
• Specifications – ZX135US-3 and ZX225USLC-3 specifications, working ranges, shoe types and applications, and bucket types and applications
• Optional Attachments and Devices – Bucket teeth, pad crawler shoe, long arm operation, blade lever, blade maintenance, specifications for machines with blade, working ranges, shoe types, and bucket types
• Index – Alphabetical quick-reference index

This operator’s manual is the primary reference document for the Hitachi ZAXIS 135US-3 and 225USLC-3. It covers everything from daily pre-start inspections to major maintenance procedures, with detailed specifications and safety warnings throughout. The manual is written for the operator and maintenance personnel, providing the information needed to keep the machine running safely and efficiently.

What This Manual Enables You to Do

With this manual, you can:

• Perform daily and periodic maintenance on schedule, using the correct fluids, filters, and procedures
• Diagnose and troubleshoot common engine, electrical, hydraulic, and control system problems
• Safely operate the machine in a variety of conditions, from soft ground to water crossings to slopes
• Understand and use the multi-function monitor, including alarm codes, maintenance settings, and work mode selection
• Properly attach and operate optional equipment such as hydraulic breakers, crushers, and pulverizers
• Adjust track sag, fan belt tension, and other serviceable items
• Follow correct procedures for loading, unloading, transporting, and lifting the machine
• Respond correctly to emergencies, including engine failure and fire
• Maintain the machine in special environments such as dusty, freezing, or coastal conditions
• Store the machine properly for extended periods and return it to service safely

Having the correct procedures and specifications on hand matters. Using the wrong oil, skipping a maintenance interval, or operating outside the machine’s limits can lead to costly breakdowns, reduced service life, and unsafe conditions. This manual gives you the manufacturer’s guidance directly.

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Delivery: Instant PDF download after payment. No shipping, no waiting. The file can be viewed on any device, printed for the workshop, and kept on hand whenever you need it.