Description

Bomag BW 177, BW 213, BW 226 2004 Training Manual – OEM Factory Specs & Repair Procedures

You pick up a used Bomag roller from auction. The wiring looks like a spider web, the BVC system has a code you’ve never seen, and the aftermarket manual tells you to “consult your dealer.” That’s money down the drain. The Bomag BW 177, BW 213, BW 226 2004 Training Manual – 182 pages, direct from the factory – gives you the actual steps Bomag techs use. This is not a generic reprint. It’s the same binder material used in Bomag’s own service training classes.

182 Pages of Factory Training Content

The manual opens with a foreword (page A1) that sets the tone: Bomag designed these single drum rollers – BW 177, BW 213, BW 226 – for reliability, and this training manual exists to keep them that way. After that you get straight into the electric steering section (starting on page C1), which covers the steering valve, electrically proportional steering valve, steering angle sensor, and the hydraulic steering circuit. Want to know how the steering pump with filter flows? It’s laid out in the same chapter. Then the compaction measuring system section (D1) explains BEM, BTMplus, BTMprof, and BVC. Each sub-system has its own block diagrams and signal descriptions.

BVC System: Exciter Unit and Swashing Motor

The BVC system gets its own fat chapter (starting on page E1). You get the full breakdown of the exciter unit, the swashing motor with its integrated potentiometer-based distance measuring system, the acceleration transducer, and the gear pump with a high pressure filter. The valve block is drawn out on page E7, and the BVC circuit diagrams for BW 177 DH-4 and BW 213/226 DH-4 are included. If you’re chasing a pressure issue or a faulty valve, this section tells you how the system actually works – not just how to replace parts, but the theory of operation. The manual even includes the MESX-control and the BOP (Bomag Operation Panel) so you can diagnose what the operator is seeing on the display.

ESX Control: Fault Codes and Replacement Procedures

The MESX_Schulung_V3.0 section (starting after H1) is where this manual earns its keep. It lists every fault code the ESX control can throw, from travel system faults to vibration and steering errors. More importantly, it gives you the exact procedure for replacing components: How to proceed when replacing an ESX control? How to replace a rear axle sensor? Which components can be replaced without a subsequent adjustment procedure? Each step is numbered. You also get the block diagrams for BEM and BTMplus/VARIOCONTROL, plus the signal pinouts on the ESX-control. For a junior tech who’s never seen a Bomag, this chapter alone will keep you from swapping parts that aren’t broken.

Steering Valve and Angle Sensor: Factory Adjustment

Under “Electric steering” (C1) and the hydraulic steering circuit (C2), the manual details the steering pump with filter, the steering wheel, the electrically proportional steering valve, and the steering angle sensor. There’s a dedicated trouble-shooting section (C15) that walks you through common symptoms like erratic steering or no response. The adjustment steps for the steering angle sensor are covered in the MESX section under “Teaching the electronic end stops of the steering angle sensor (BVC).” That kind of specific calibration data is what you pay for with an OEM document.

Why OEM Documentation Beats Aftermarket Copies

I’ve been burned by aftermarket manuals that print generic torque values and skip half the wiring diagrams. This Training Manual is a direct scan of Bomag’s own 2004 training binder. The wiring diagrams are original, the hydraulic diagrams are original, and the circuit diagrams for each variant (BW 177 DH-4 vs. BW 213/226 DH-4) are separate. No “refer to dealer” garbage. Every code number, every input code, every signal description on the ESX-control is here. For a shop that sees rental fleet rollers, this manual pays for itself the first time you fix a BVC code without a call to Bomag support.

FAQ: Common Questions About This Manual

Does this manual include torque specifications for the exciter bolts?

The training manual does not contain a separate torque table; torque specs are referenced within the repair and adjustment procedures for the exciter unit and swashing motor.

Is this manual in English? The file name has ‘de’ in it.

Yes, the manual is primarily in English. The ‘de’ in the filename indicates a German source copy, but the content was published for international service training and uses English text throughout.

Can I use this to replace the steering valve on a BW 213?

Yes. The steering valve chapter (C6) and the MESX adjustment section for “Changing the steering unit on BVC-4 machines” give you the factory procedure, including how to teach the electronic end stops after installation.

Does this cover the manual transmission or driveline travel system?

No. This manual covers the hydrostatic travel system controlled by the ESX. For comparison with a traditional Manual Transmission vehicle, the logic is different. If you want details on the travel pump and axle drive motor replacement steps, see the MESX section on replacing a travel pump/axle drive motor/drum drive motor.

Related Manuals for Bomag Rollers

• Bomag BW 213, BW 211, BW 216 2005 Training Manual – OEM Factory Specs
• Bomag BW 177, BW 179 DH, PDH-4 2004 Training Manual – Factory Specs
• Bomag BC 670 RB Training Manual – Factory Specs & Repair Docs

For a deeper understanding of how the ESX control communicates with the travel system, a background in Manual Transmission principles may help you appreciate the contrast in electronic control logic, but the manual teaches everything you need to service these rollers. Access the Factory Manual and get back to turning wrenches instead of turning pages through generic diagrams.