Bomag BW 120 AD-5 Combination Roller Pdf Repair Service Manual 00840072EN

Technical Workshop Manual for Bomag BW 120 AC-5 Combination Rollers

The Bomag BW 120 AC-5 Combination Roller PDF Repair & Service Manual (P/N: 00840072EN) is the authoritative factory-level guide for maintaining and overhauling this 5th Generation Dash-5 series compactor. As a combination model, this machine utilizes a 1200mm vibratory steel drum at the front and a set of four pneumatic tires at the rear, requiring specialized technical data to manage its dual-surface compaction systems. This manual provides the OEM-approved procedures required to keep both the vibration and tire drive systems operating at peak efficiency.

Equipped with modern Tier-compliant engine technology and advanced Dash-5 electronic control modules, the BW 120 AC-5 demands precise technical knowledge for effective servicing. This manual covers all essential service areas, from hydrostatic pressure balancing to the intricate wiring of the digital control console, ensuring your equipment meets original factory performance standards.

This PDF guide is an essential resource for workshop mechanics, field technicians, and fleet owners managing modern paving equipment in demanding construction environments.

Advanced Technical Specifications & Setup

• Hybrid Drive Dynamics: Comprehensive service procedures for the synchronized hydrostatic drive system powering the front drum and the rear pneumatic tire set.
• Next-Gen Engine Integration: In-depth service data for the diesel powerplant, including fuel injection diagnostics, cooling system optimization, and exhaust aftertreatment care.
• Hydraulic Benchmarks: Precise factory pressure settings and flow testing protocols for the travel, vibration, and steering hydraulic circuits.
• Critical Torque Values: Precise fastening specifications for articulation joint pins, wheel lug nuts, drum mounts, and vibration exciter housings.

Comprehensive System & Service Coverage

• Vibration & Exciter Units: Detailed repair instructions for the front drum's high-frequency vibration system, including bearing replacement and frequency calibration.
• Pneumatic Rear Axle: Maintenance and repair procedures for the rear tire drive assembly, including hydraulic motor servicing and tire scraper adjustments.
• Dash-5 Electronic Logic: High-resolution wiring diagrams covering the machine's central ECU, sensors, safety switches, and digital dashboard instrumentation.
• Combination Spray System: Service instructions for the dual-interval pressurized water and emulsion sprayers used to prevent asphalt pickup on both drums and tires.
• Hydrostatic Transmission: Troubleshooting workflows for drive power loss, travel pump rebuilding, and closed-loop hydraulic system decontamination.
• Safety & Braking: Full testing and repair procedures for the SAHR parking brake system and operator safety interlock circuits.

Manual Specifications

• Machine Model: Bomag BW 120 AC-5 (Combination Roller)
• Part Number: 00840072EN
• Generation: Dash-5 Series
• Format: PDF Digital Download (Fully Searchable & Bookmarked)
• Language: English
• Total Pages: 850+
• File Size: Approximately 88 MB
• Illustrations: High-definition wiring diagrams, hydraulic flow schematics, and exploded assembly views
• Compatibility: Windows, macOS, Android, iOS, and Tablets

Why This Service Manual Is Essential for Repairs

• Targeted Diagnostics: Eliminate expensive guesswork by using logic-based troubleshooting guides to find the root cause of hydraulic or electrical failures.
• Minimize Maintenance Costs: Perform advanced in-house calibrations and repairs, significantly reducing the need for expensive dealer service calls.
• Safety Assurance: Verify that all operator safety systems and braking mechanisms are maintained to original factory specifications.
• Instant Access: Digital PDF format allows for rapid keyword searching, making it easy to find specific terms like "fault codes" instantly.

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Frequently Asked Questions

Does this cover the pneumatic tire (Combination) model?

Yes, this is the official manual for the AC-5 model, covering both the front steel drum and the rear pneumatic tires.

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 manual on my smartphone?

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, allowing you to save the PDF to any computer or tablet.