Description

Bomag Asphalt Manager 2005 Training Manual

Ever had a Bomag Asphalt Manager 2005 Training Manual show up on your workbench right when the rental yard is screaming for that BW 190 AM? I run a six-bay shop in San Antonio, and I’ve seen guys torch a control motor because they thought the potentiometer voltage was “close enough.” This 194-page training manual from Bomag is the real factory document – not some aftermarket reprint that guesses at wire colors. It’s the one the trainer pulls out at Boppard. If you’re working on an Asphalt Manager system and you don’t have this, you’re flying blind.

BOMAG Asphalt Manager System: What the Manual Covers

This training manual breaks down every major component of the BAM system. The Table of Contents starts with the Exciter unit and Hydraulic section, then walks through the Additional gear pump – note that articulated and pivot-steered rollers use different pump locations. The High pressure line filter section calls out the 100µm filtering rate, with specific placement: inside the engine compartment on articulated models, under the front hood on pivot-steered ones. It also covers the Valve block positions – front right on the frame for articulated, front right support leg for pivot-steered. That kind of location detail saves you an hour of poking around underneath a hot roller.

You’ll also find the Control motor with integrated potentiometer section, including voltage readings: vertical forward about 2 V, horizontal 4.25 V, vertical backward [DATA NEEDED]. They flag that on BW 170/174 machines the control motor is rotated 180 degrees – easy to miss if you’re swapping parts between models. The Acceleration transducer, BAM-MESX control, and BOP (Bomag Operation Panel) all get their own deep dives. Temperature sensor, speed sensor, drum types (continuous and split) – it’s all there.

Repairs and Adjustments: Control Motor and Potentiometer

The Repairs and adjustments chapter walks through replacing the control motor and fine-tuning the potentiometer. This is where the factory procedure matters. Aftermarket manuals tell you to “adjust until it feels right.” This manual gives you the exact steps, including the potentiometer voltage ranges and the wiper position after replacement. If you skip the fine-tuning, the BAM system will throw false compaction readings. I’ve seen it. The Trouble shooting section follows – it lists symptoms, probable causes, and corrective actions. No “check wiring” fluff. It tells you which pins to test and what voltage to expect.

Trouble Shooting: Factory Procedures That Actually Work

Trouble shooting is laid out with the same no-nonsense approach. It covers electric connections of the BAM-MESX control for both articulated and pivot-steered rollers. For example, the electric junction box location varies by model – page 9 of the manual (actual page may differ in print) shows the terminal assignments. There’s a separate subsection for Speed sensor troubleshooting: gearbox-mounted (Stiebel or GFT) on BW 154/174/184 AM versus speed transducer on articulated models. You don’t need to guess which sensor type your machine has – the manual lists the applicable models for each.

Who Should Use This Factory Training Manual?

If you own a Bomag tandem roller with Asphalt Manager – BW 141, 151, 161, 154, 174, 184, 190, or 203 – this manual belongs in your toolbox. It’s written for service technicians, not theoretical engineers. The wiring diagrams cover articulated and pivot-steered rollers separately, with component listings for each. A home garage mechanic who maintains his own equipment will find it usable as long as you know how to read a schematic. The Drums chapter explains continuous versus split drum configurations and their effect on compaction measurement. You won’t need a software subscription – this is a printed-paper manual that doesn’t require a laptop to run.

Why OEM Documentation Beats Aftermarket Copies

Aftermarket manuals for Bomag equipment are usually scanned at low resolution or re-typeset with errors. This 2005 training manual is the original Bomag publication (Part-Nr. 008 097 23). The hydraulic diagrams, wiring excerpts, and component callouts are crisp. The Hydr-diagram section includes separate diagrams for BW 190 AM, BW 154 AM, and BW 174 AM. An aftermarket copy might combine them or miss the filter rating. This manual also includes the Printer and BCM 05 sections – options you may not have but need to diagnose if the system won’t talk to the printer. Downloading the factory manual means you get the exact same PDF that Bomag trainers use.

Does this manual include wiring diagrams for all models?

Yes, it includes circuit diagrams for articulated and pivot-steered rollers.

What is the difference between BEM and BAM systems?

BEM (Bomag Evib Meter) measures vibration amplitude only, while BAM (Bomag Asphalt Manager) adds asphalt temperature sensing, automatic amplitude adjustment via the control motor and MESX control, and interfaces with the BOP display. The manual dedicates separate sections to both systems, showing the additional components for BAM – exciter unit, valve block, acceleration transducer, and the potentiometer-based feedback loop. It also explains how BAM uses temperature and speed data to modulate amplitude, which is critical for achieving proper compaction without overworking the roller.

This manual is scanned from the original factory training binder – 194 pages of schematics, exploded views, and step-by-step repair sequences. You’ll find the hydraulic diagram, control motor potentiometer voltage table, and the full electric wiring diagram for each roller series. The file is searchable, so you can jump straight to the section you need. Related manuals that pair well with this one include Bomag BC 670 RB Training Manual – Factory Specs & Repair Docs, Bomag BW 24 R 2001 Training Manual – Factory Specs & Repair, and Bomag BC 771 RB 1999 Training Manual – Real Workshop Specs. For general construction equipment repair, you may also reference Manual Transmission or Manual Transmission for drivetrain basics.

Don’t trust a reprint when you can have the original. Access the Factory Manual now and keep your Asphalt Manager running true.