Service Manual For Bomag Bmp851

Before servicing:

A common BMP851 failure is belt slippage. The manual shows how to check the belt deflection (usually 10-12 mm under thumb pressure) and how to replace the clutch shoes without damaging the crankshaft keyway.

A: Yes. It includes Bomag part numbers, but not cross-references to aftermarket brands (e.g., Donaldson, Mann, SKF). For aftermarket, you will need to match dimensions manually.

The BMP 851 uses a closed-loop hydrostatic circuit for drum drive and an open-loop circuit for vibration and steering. service manual for bomag bmp851

Key components:

Pressure checks:

Troubleshooting – low drive power:

Hydraulic oil change procedure:

If you own or operate a Bomag BMP 851, you already know one thing: this isn’t your average compactor. Known affectionately as the "baby roller" due to its narrow frame and impressive drum offset, the BMP 851 is the king of trench compaction.

But with its advanced hydraulic systems and specialized articulation, maintaining this machine requires more than just a grease gun and a prayer. It requires the Bomag BMP 851 Service Manual. Before servicing: A common BMP851 failure is belt slippage

In this post, we’re discussing why this specific manual is non-negotiable for your workshop, what you can expect to find inside, and the common maintenance pitfalls it helps you avoid.

This article summarizes the key contents and how to use a service manual for the BOMAG BMP851 (single drum vibratory roller). It’s intended to help maintenance technicians, fleet managers, and owners understand what to expect in the manual and how to apply it for safe, efficient repairs and preventive maintenance.

A generic operator’s manual tells you how to start the machine. A service manual tells you how to rebuild it. Here is the chapter-by-chapter breakdown you should expect: Pressure checks :

The official manual contains decision trees for symptoms like: