Volvo EC45 Compact Excavators Service Manual

Volvo EC45 Compact Excavator PDF Service Manual – Hydraulic & ECU1 Repair

Advanced service manual for the Volvo EC45 Compact Excavator providing comprehensive coverage for mechanical teardown, hydraulic calibration, and electronic diagnostics. Includes troubleshooting charts, wiring schematics, control valve disassembly, and slewing gear pressure balancing for full-field and workshop operations.

Model Covers:

Volvo EC45 – Compact Excavator with hydraulic servo circuits and ECU1 control

File Format: PDF

Size: 9.17 MB

No. of pages: 346

Language: English

Delivery Method: Instant Download - Access your file immediately after purchase

📑 Table of Contents Overview:

Engine & Fuel Injection System

• Compression inspection, valve clearance settings, idle speed tuning, pump removal
• Fuel system bleeding, injector pipe assembly, crankshaft seal service, thermostat replacement
• V-belt tension, coolant circuit inspection, oil and air filter procedures

Electrical Systems & ECU Diagnostics

• Wiring diagrams (engine, cab, fuses), voltage regulator checks, glow plug diagnostics
• Starter/generator disassembly, relay functions, error code decoding for ECU1 (PUMA)
• Schematics for hydraulic-side electronics, fuse layout for cabin and equipment panels

Hydraulic System & Valve Adjustment

• Complete hydraulic diagram suite: boom, dipper, bucket, blade, travel, slewing, offset
• Relief valve testing: LS, FR, standby, pilot pressure and volumetric capacity diagnostics
• Valve block teardown, balancing valve for offset, servo hydraulic test procedures

Travel Gear, Braking & Slewing Motor

• Axial piston motor teardown, oil distributor seal testing, swing brake service
• Roller bearing fitting, track gear torque test, travel motor disassembly and valve plate setup
• Brake disc replacement, counterbalance valve repair, slewing gear alignment

Undercarriage, Tracks & Cab Frame

• Cab removal and seat servicing, top/bottom rollers, sprockets, idler dismount and replacement
• Track tensioner settings, rubber/crawler track assembly, cab door and windshield procedures
• Shock mount inspection, weather roof installation, instrument panel reconfiguration

This Volvo EC45 Compact Excavator Manual delivers precision procedures for engine diagnostics, hydraulic pressure tuning, electrical fault tracing, and full mechanical service tasks.