Volvo Ec55-2 Compact Excavator Workshop Service Manual

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Ec55-2 Compact

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Volvo Ec55-2 Compact Excavator Workshop Service Manual

Table of Contents – EC55-2 Service Manual

1. GENERAL INFORMATION AND SPECIFICATIONS
General technical data
Standard repair times
Recommended special tools
Standard parts and service items
Lubricants, fuels, and other fluids

2. MAINTENANCE AND DIAGNOSTICS
Preventive maintenance schedule
Condition and performance testing
Emergency procedures
Jump starting
Miscellaneous service operations
Troubleshooting guide

3. ENGINE AND MOUNTING COMPONENTS
Engine installation and operation
Engine general information (series 211–218)
Cylinder head
Cylinder block with crankcase ventilation
Valve mechanism
Crankshaft, connecting rod, vibration damper, and flywheel

4. LUBRICATION SYSTEM
General information (series 221–224)

5. FUEL SYSTEM
General information (series 233–238)
Fuel tank and breather filter
Fuel filling pump and connections

6. COOLING SYSTEM
General information (series 261–269)

7. ELECTRICAL SYSTEM, WARNING SYSTEM, AND INSTRUMENTS
Comprehensive electrical system overview
Battery and energy storage system
Alternator and charging system
Starter motor and solenoid
Electric air preheater
Lighting system (series 351–356)
Additional electrical equipment
Horn
Windscreen wiper
Switches and connectors
Wiring, fuses, and relays (series 371–379)
Electrical distribution box and fuse box
Instruments, sensors, and warning units
Temperature, level, position, and pressure sensors
Display and warning unit
Radio, CD player, and voltage divider

8. POWER TRANSMISSION
Gearbox
Track gearbox (crawler machine)
Swing gearbox and swing pinion shaft

9. HYDROSTATIC DRIVE SYSTEM
General information (series 441–443)
Hydraulic drive motor
Travel hydraulic motor
Swing hydraulic motor
Center passage and hydraulic lines
Superstructure swing system
Swing ring

10. BRAKE AND STEERING SYSTEMS
Track brake
Steering system general information (series 641–647)

11. FRAME, SUSPENSION, AND TRACK UNIT
Comprehensive frame and track unit overview
Counterweight
Excavator frame
Undercarriage (crawler machine)
Track components
Front idler with fork
Sprocket
Steel track chain
Top rollers and skid rails
Bottom rollers
Spring package and tensioning cylinder

12. CABIN, CANOPY, AND EXTERIOR TRIM
Cab and canopy overview

13. AIR CONDITIONING AND CLIMATE CONTROL SYSTEM
General information (series 872–877)
Heating unit
Heating control valve
Cooling unit
Compressor
Evaporator and expansion valve
Condenser
Drying filter

14. WORKING HYDRAULICS AND SERVO HYDRAULICS SYSTEM
General information (series 911–917)
Hydraulic tank, lines, oil cooler, filter, breather, and filling pump
Oil cooling system
Directional and control valves
Working hydraulic pump
Slew pump
Servo hydraulic system
Servo pump
Control pressure valve (excluding brake valve)
Solenoid valve (on/off function)