Volvo ec20c service repair manual
Volvo Ec20c Parts Manual
The Service Manual contains detailed information, volvo ec20c excavator troubleshooting, diagrams, current real photo illustrations and schemes, Which give you complete step by step operations on repair, servicing, technical maintenance & troubleshooting Procedures for your machine.
This handbook offers full repair information you need for your machine. The information in will enable you to manually find trouble and to understand how to repair and maintain your machine without going into service.
Table of Contents: Volvo EC20C Service Information
✓ GENERAL
✓ DESCRIPTION, COMPLETE MACHINE
✓ General
✓ SPECIFICATIONS
✓ STANDARD TIME
✓ TOOL
✓ MISCELLANEOUS
✓ Service instruction; safety instruction
✓ STANDARD PARTS, SERVICE
✓ LUBRICANT; FUEL; OTHER FLUID
✓ SERVICE
✓ General, common info about 171 – 179
✓ Warranty service
✓ Maintenance
✓ Maintenance, base
✓ Condition test
✓ Emergency measures
✓ Measures prior to towing
✓ Jump starting
✓ Safety equipment, without own function group
✓ ENGINE WITH MOUNTING AND EQUIPMENT
✓ General, engine installation and its function
✓ ENGINE
✓ General, common info about 211 – 218
✓ Cylinder head
✓ Cylinder block with crankcase ventilation
✓ Cylinder liner; piston
✓ Valve mechanism
✓ Engine transmission; camshaft
✓ Crank shaft; connecting rod; vibration damper; fly wheel
✓ LUBRICATING SYSTEM
✓ General, common info about 221 – 224
✓ Oil pump; line
✓ FUEL SYSTEM
✓ General (common info about 233 – 238)
✓ Fuel pump; filter; strainer
✓ Fuel tank; fuel filling pump
✓ Injection pump; regulator; pump companion
✓ Injector; delivery pipe
✓ INLET SYSTEM; EXHAUST SYSTEM
✓ Silencer; exhaust pipe
✓ Air cleaner with connections; air pre-heater
✓ COOLING SYSTEM
✓ General, common info about 261 – 269
✓ Radiator, mounting and connections included
✓ Coolant pump; thermostat
✓ Fan; fan shroud; fan coupling
✓ ENGINE CONTROL
✓ Revs control, hand operated
✓ Stop control
✓ ELEC. SYSTEM; WARNING SYSTEM; INFORMATION SYSTEM; INSTRUMENTS
✓ Comprehensive info, electrical system
✓ Faulttracing
✓ BATTERY; ENERGY STORAGE SYSTEM; MOUNTING PARTS
✓ Battery
✓ ALTERNATOR; CHARGING; ELECTRIC MOTOR; ELECTRIC DRIVES
✓ Alternator inclusive drive
✓ STARTING SYSTEM
✓ Starter motor inclusive solenoid
✓ Electric air pre-heater, excluding element
✓ LIGHTING
✓ General, common info about 351 – 356
✓ Lighting, front, including parking light and day running light
✓ OTHER ELECTRICAL EQUIPMENT
✓ Audible warning from horn; mounting
✓ Cleaner
✓ Automatic control/blocking function, lacking a function group of its own
✓ Electronic standard components
✓ CABLE; FUSE; RELAY
✓ General, common info about 371 – 379
✓ Cable; battery disconnector
✓ Cable system, cabin
✓ Battery cable, battery disconnector
✓ Starter cables
✓ Electrical distribution box; fuse box; junction box
✓ Fuse
✓ Miscellaneous
✓ POWER TRANSMISSION
✓ General, common info about 410 – 436
✓ HYDROSTATIC DRIVE
✓ Hydraulic motor incl. operating system.
✓ Hydraulic motor 1, traveling
✓ Hydraulic motor, swing of superstructure
✓ Centre passage; lines
✓ Swing system upper part
✓ FRAME; SPRINGS; DAMPING; AXLE SUSPENSION; WHEEL/TRACK UNIT
✓ Comprehensive info about frame and track unit/wheels
✓ FRAME
✓ Counterweight
✓ Frame, excavator
✓ Under carriage (crawler machine)
✓ Revolving frame
✓ WHEELS; TRACKS; TYRE; HUB; DRUM
✓ Crawler unit
✓ Front idler, incl. fork
✓ Sprocket
✓ Rubber track
✓ Top rollers; skid rails
✓ Bottom rollers
✓ MACHINERY HOUSE; CAB; EXTERIOR TRIM PARTS ANYWHERE
✓ CAB, NAKED; CANOPY
✓ ENGINE HOOD; MUDGUARD; FOOT STEP
✓ Engine hood with assembly parts
✓ CAB INTERIOR/UPHOLSTERY
✓ Driver’s seat, complete; instructor’s seat
✓ HYDRAULIC SYSTEM; DIGGING/ HANDLING/ GRADING EQUIPMENT; MISC. EQUIP.
✓ WORKING HYDRAULICS; SERVO HYDRAULICS
✓ General, common info about 911 – 917
✓ Tank; line; oil cooling; filter; breather; filling pump
✓ Working hydraulics
✓ Pump, working hydraulics
✓ Servo hydraulic system
✓ Lever; pedal
✓ Other hydraulic equipment
✓ UNIT, DIGGING
✓ General, common info about 971 – 975
✓ Boom with links
✓ Dipper arm with links
Volvo EC20C Excavator Troubleshooting ✅
When your Volvo EC20C excavator shows warning lights or irregular performance, understanding troubleshooting procedures is key to identifying and fixing problems quickly. Common issues include hydraulic leaks, starting issues, low engine power, and error codes displayed on the control panel.
The troubleshooting section in the Volvo EC20C service manual provides error code definitions and diagnostic flowcharts, helping operators trace the source of faults efficiently. For instance, if the excavator fails to lift properly, the manual guides you through checking hydraulic pressure lines, filter blockages, and control valve functionality.
Using the correct troubleshooting steps ensures that minor issues don’t become major repairs. Search terms like “Volvo EC20C excavator won’t start” or “EC20C hydraulic system troubleshooting” are among the most common by equipment owners—showing the importance of accurate diagnosis before replacing parts.
Keeping your equipment inspected and serviced following the troubleshooting guide ensures maximum uptime, fuel efficiency, and safe operation on every project.
