Volvo Mc125c, Mc135c, Mc155c Skid Steer Loader Repair Service Pdf Manual

Repair & Service Manual with Wiring Diagrams Overview

The Volvo MC125C, MC135C, and MC155C Skid Steer Loader PDF Repair & Service Manual is the definitive technical authority designed for the professional maintenance and mechanical overhaul of these innovative C-Series machines. Covering all applicable serial number ranges, this manual provides the specific factory procedures required to maintain the revolutionary single-arm boom design, the hydrostatic drivetrain, and the high-flow hydraulic system of the MC125C, MC135C, and MC155C series.

These Volvo Skid Steer Loaders feature the unique Single Loader Arm design, providing the operator with safe side entry and unmatched visibility. Powered by a fuel-efficient Volvo Turbo Diesel Engine, they utilize a robust Hydrostatic Drive System to deliver powerful breakout forces and travel speeds. Maintaining the pilot-operated hydraulic controls, the loader arm pivot points, and the electronic machine management system is critical for safety and productivity. This service manual is the essential reference for technicians diagnosing hydraulic flow issues, replacing drive chains, and troubleshooting electrical sensors.

Machine & Powertrain Information

The MC125C, MC135C, and MC155C are powered by a reliable Volvo 4-Cylinder Diesel Engine designed to meet strict emissions standards while delivering high torque across the RPM range. This manual covers the specific maintenance requirements for this compact power plant, including the high-pressure fuel system, turbocharger inspection, cylinder head overhaul, and cooling system service.

The machines feature a closed-loop Hydrostatic Transmission with radial piston motors. Our manual guides you through the service of the drive motors, the hydraulic pumps, and the chain drive system located within the chassis.

Systems & Service Coverage

• Complete repair procedures for Volvo MC125C, MC135C, and MC155C Skid Steer Loaders
• Engine Overhaul: Volvo Diesel Engine (Cylinder Block, Cylinder Head, Fuel Injectors, Turbocharger, Water Pump, and EGR System)
• Loader Boom: Single-arm boom structure repair, pivot pin replacement, and side-entry door mechanism service
• Hydraulic System: High-flow pump diagnostics, main control valve repair, and cylinder resealing (Lift/Tilt/Attachment)
• Drive System: Hydrostatic drive pump repair, drive motor overhaul, chain tensioning, and axle seal replacement
• Electrical System: Wiring diagrams, fuse panel layouts, ECU logic, and instrument panel troubleshooting
• Cab & Controls: Joystick pilot valve repair, HVAC system service, and seat suspension maintenance
• Safety Systems: Boom lock verification, seat bar sensor testing, and backup alarm diagnostics
• Preventive maintenance schedules, fluid capacities, and lubrication charts
• Torque specifications and safety protocols for working on compact loaders

Manual Specifications

• Machine Models: Volvo MC125C, MC135C, MC155C
• Configuration: Skid Steer Loader (Wheeled)
• Boom Design: Single-Arm Vertical Lift
• Manual Type: Repair & Service Manual
• Format: PDF Digital Download
• Language: English
• Total Pages: 900+
• File Size: Approximately 100MB
• Illustrations: Detailed schematics, hydraulic flow diagrams, and exploded views
• Device Compatibility: Windows, macOS, Android, iOS

Why This Service Manual Is Important

• Contains factory-verified repair instructions for Volvo C-Series skid steers
• Essential for diagnosing engine startup issues and hydrostatic drive faults
• Reduces downtime by enabling precise repair of the single-arm boom and hydraulics
• Ensures proper calibration of the hydraulic controls for smooth operation
• Vital for landscaping contractors, construction fleets, and compact equipment mechanics
• Clear, searchable layout with hyperlinked sections for fast navigation
• Instant access to critical wiring diagrams and hydraulic schematics

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When you choose Manualskart, you get reliable, readable manuals that help you fix your machine right the first time. Browse our extensive library in the Volvo Service Manual Collection.

Download the Volvo MC125C, MC135C, and MC155C Skid Steer Loader Repair & Service Manual now and get immediate access to the professional instructions required to keep your equipment loading.

Frequently Asked Questions

Is this an original factory service manual?

Yes, this is an OEM-level repair manual containing official technical data specific to the Volvo MC125C, MC135C, and MC155C.

Does this manual cover the chain drive system?

Yes, the manual details the procedures for inspecting, tensioning, and replacing the drive chains inside the chassis.

Does this manual cover the single-arm boom?

Yes, the manual provides specific instructions for maintaining the unique single loader arm structure and its pivot points.

Is the manual provided as a downloadable PDF?

Yes, you receive a fully searchable PDF file with instant download access immediately after payment.

What if I experience download issues?

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Is there a refund policy?

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