Bomag BW 125 AC-4 Combination Roller Pdf Repair Service Manual 00891052

Industrial Workshop Manual for Bomag BW 125 AC-4 Combination Rollers

The Bomag BW 125 AC-4 Combination Roller PDF Repair & Service Manual (P/N: 00891052) is a specialized factory-level technical resource for the 1250mm (49.2 in) drum-width Dash-4 series. This "AC" combination model features a high-performance vibratory steel drum at the front and four pneumatic tires at the rear, requiring unique technical oversight for its dual-traction system. This manual provides the OEM-approved diagnostic and repair procedures essential for maintaining this heavy-duty compactor.

Powered by a precision-engineered diesel powerplant, the BW 125 AC-4 utilizes a series-parallel hydrostatic drive. This manual delivers comprehensive service instructions covering the machine’s complex hydraulic circuits, electronic control logic, and mechanical assemblies, ensuring every repair meets factory performance and safety standards.

This technical guide is the primary reference for field mechanics, independent service centers, and fleet managers responsible for the maintenance of Dash-4 Bomag combination equipment in demanding paving environments.

Technical Specifications & Maintenance Data

• Engine Service: Step-by-step engine maintenance protocols, including fuel injection timing, valve lash adjustments, and cooling system performance testing.
• Hydraulic Benchmarks: Accurate pressure benchmarks and flow testing procedures for the travel, vibration, and steering pumps.
• Fluid & Lubricant Specs: Correct engine oil viscosities, hydraulic fluid grades, and specific capacities for the Dash-4 series.
• Critical Torque Values: Factory-certified torque specifications for articulation joints, drum mounts, wheel lug nuts, and vibration isolators.

Systems & Service Coverage

• Vibration Control: Detailed teardown and reassembly of the front drum exciter shaft, including bearing replacement and frequency calibration.
• Pneumatic Rear Drive: Specialized service routines for the rear tire traction motors, wheel hub assemblies, and tire maintenance.
• Hydrostatic Transmission: Diagnostic workflows for drive power loss, travel motor rebuilding, and high-pressure system decontamination.
• Electrical System: High-resolution wiring diagrams covering the Dash-4 control panel, safety switches, sensors, and starting circuits.
• Combination Spray System: Maintenance for the pressurized water and emulsion sprayers used on both the drum and tires to prevent asphalt adhesion.
• Steering & Articulation: Procedures for servicing the oscillating pivot joint and resealing steering cylinders for precise machine tracking.
• Safety & Braking: Comprehensive testing of the SAHR parking brake, emergency stop circuits, and seat safety interlocks.

Manual Specifications

• Machine Model: Bomag BW 125 AC-4 (Combination Roller)
• Part Number: 00891052
• Generation: Dash-4 Series
• Format: PDF Digital Download (Fully Searchable & Bookmarked)
• Language: English
• Total Pages: 720+
• File Size: Approximately 110 MB
• Illustrations: Clear hydraulic flow schematics, wiring diagrams, and exploded view assembly drawings
• Compatibility: Windows, macOS, Android, iOS, and Tablets

Why This Service Manual Is Essential for Repairs

• Targeted Troubleshooting: Use logic-based charts to find the root cause of hydraulic pressure drops or electrical failures instantly.
• Maximize Uptime: Perform advanced in-house calibrations and repairs, reducing the need for expensive dealership service calls.
• Enhanced Precision: High-definition assembly views ensure you identify the correct parts and sequences for complex mechanical overhauls.
• Digital Portability: The searchable PDF format allows for rapid keyword lookups for terms like "fault codes" or "schematics" on any device.

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Manualskart.com is a trusted source for authentic, high-quality technical documentation for the heavy equipment industry. Our manuals are professionally curated to ensure maximum legibility for all technical tables and schematics, providing you with the reliable data needed for professional-grade repairs.

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Frequently Asked Questions

Does this cover the pneumatic tire (Combination) model?

Yes, this manual is specifically written for the AC (Combination) version of the BW 125, covering the front drum and the rear tire assembly.

Are wiring diagrams included?

Yes, the manual contains clear, high-resolution wiring diagrams that allow for accurate tracing of electrical circuits and fault diagnosis.

Can I access this on my phone?

Absolutely. The PDF format is universally compatible with all mobile devices, allowing you to reference technical data directly at the machine.

How is the manual delivered?

You will receive an instant download link immediately after purchase, ensuring you can begin your maintenance or repairs without delay.