Instructions for installation and commissioning

Instructions for installation and commissioning

When you order the desired final drive, you will receive assembly instructions describing proper installation and commissioning.

At this point, we would like to explicitly point out that the final drive must be installed and put into operation in accordance with the installation instructions!
In case of uncertainties or questions – do not hesitate to contact us!

Before starting to install the final drive, make sure that the immediate surroundings are as clean as possible. Make sure that no dirt enters the hydraulic circuit during assembly.
In addition, no impurities (metal particles etc.) must be present in the hydraulic circuit. In this context, we recommend changing the hydraulic oil and all filters in the hydraulic circuit before installing the new final drive.
On delivery of the final drive, the planetary gear is already filled with the precise quantity of the intended gear oil. General information on draining the gear oil, checking the filling level and filling the travel drive can be found on the Service and Maintenance page. The exact description of these processes can be found in the assembly instructions.
When fitting the final drive, ensure that the hydraulic lines are connected correctly! Deviations in the positions and thread of the connections on the final drive to which the hydraulic hoses are to be fitted may occur in comparison with the old final drive.

Generally, it can be assumed that the pressure in the hydraulic system, depending on the construction machine, is in a range of approx. 180 – 350 bar.
A leakage line must be connected to a large number of the final drives that we offer, and special attention must be payed to this.
The leakage hose (pressureless hose) discharges air bubbles, which can enter the hydraulic circuit (e.g. by completely loosening and subsequently fastening a hydraulic hose to the final drive).
Caution! While the construction machine is in motion, the oil is transported in the hydraulic circuit. If air bubbles are present in the circuit, the cavitation effect can destroy mechanical components that are in direct contact with the hydraulic oil. Since air is known to rise upwards, the connection for the leakage hose is usually at the uppermost position, starting from the installation position of the final drive.
With 1-speed construction machines, 3 hydraulic hoses are usually mounted on the final drive. However, there are also construction machines where only 2 hydraulic hoses are connected to the traction motor.
The direction of movement of the construction machine depends on the flow direction of the hydraulic oil in the circuit. It is controlled by one or more hydraulic pumps.
As already described, the leakage hose performs the function of venting and is usually connected to the tank at the other end without pressure.

2-speed construction machines usually have an additional hydraulic hose, which must be fitted to the intended connection on the final drive. Construction machines with 2 gears were developed to be able to cover distances faster. There are also 2-speed construction machines with 5 hydraulic hoses connected to the traction motor. The connection for the fifth hydraulic hose takes over the task of venting the clamping cylinder in the final drives offered by us.

Once the final drive has been correctly mounted, it is ready for commissioning.
This process step is designed so in order to ensure that the hydraulic oil is completely distributed in the hydraulic circuit, that all air bubbles escape and that there is a constant pressure in the system.

Commissioning is very important and at the same time represents a major condition for the full functionality of the final drive.
Detailed information on installation and commissioning of your final drive can be found in the installation instructions that we provide.

Final Drives in OEM quality

Final Drives in OEM quality

We at BME BauMaschinen Ersatzteile always pursue the target of providing our customers with a complete package that consists of high-quality products, fair prices and first-class service.

In order to guarantee the high quality of our final drives, we have decided to purchase them from leading international suppliers.

Due to our business cooperations, we are able to offer final drives for more than 1500 different construction machines.

The diversity of our range of final drives varies from small final drives, which are suitable for chain driven vehicles, starting with a weight of 0.5 tons up to large final drives, which are designed for excavators up to 45 tons.

In addition to the high quality of the final drives, the sustainability of the quality is at the same time the top priority. In this context, the stable production processes are analysed at regular intervals and continuously further developed. This includes research into the use of the most up-to-date production technologies.

With us you are at the right place if you need an original equipment quality final drive for your tracked vehicle at a fair price.