Danfoss Series 90 100cc Axial Piston Motor Parts Manual
Comprehensive parts manual for the Danfoss Series 90 100cc Axial Piston Motor, including exploded views, part identification procedures, and service bulletins.
Table of contents
Manual images
Jump to the sectionProduct Overview
The Danfoss Series 90 100cc Axial Piston Motor is a high-performance hydraulic component designed for demanding applications. This manual provides detailed information for identifying service parts, including module groups, item numbers, and specific part configurations. The modular design of the Series 90 motor allows for simplified maintenance and repair procedures.

Identifying Parts
Each unit features a nameplate affixed to the housing, which contains essential information for ordering replacement parts. The model code defines the specific unit configuration, while the serial number identifies the manufacture date and warranty period. When ordering parts, it is crucial to match the date code from the nameplate with the corresponding part number in the provided tables, as configurations may vary based on the production date.

Service and Maintenance
This manual includes detailed exploded view diagrams for various motor configurations, such as special hardware, end caps, loop flushing, and shaft assemblies. Users should consult the relevant section for their specific model to identify components correctly. Service bulletins are included to provide critical updates regarding product changes, such as dowel pin modifications, piston improvements, and housing updates. These bulletins contain vital information on part interchangeability and should be reviewed before performing any repairs.
Safety and Compliance
Proper identification of parts is essential for safe and efficient maintenance. Always refer to the latest service bulletins to ensure that replacement parts are compatible with the specific vintage of the motor being serviced. The manual outlines procedures for identifying regional part numbers and provides examples to assist in the accurate selection of components. Following these guidelines ensures that the motor maintains its original performance specifications and reliability.
Manufacturer information
Danfoss A/S
Practical help
Common problems
Always check the date code on the unit nameplate and cross-reference it with the date ranges provided in the parts tables.
Consult the included Service Bulletins to verify if a part has been superseded or if specific components are non-interchangeable with older versions.
Before use
- Verify the model code on the unit nameplate.
- Check the serial number to determine the manufacture date.
- Review the relevant Service Bulletins for any applicable product updates.
- Ensure the correct parts list section is selected based on the motor configuration.
Specs in practice
- Serial Number
- Identifies the manufacture date, assembly location, and warranty period.
Images and diagrams
- Exploded views show the assembly order of internal components.
- Generic end caps are used in diagrams to illustrate part locations.
- Asterisks (*) indicate parts included in the overhaul seal kit.
Model compatibility
- Some parts are region-specific; verify part numbers for your location.
- Always check Service Bulletins for interchangeability status before ordering.
- Newer parts may require replacing multiple components simultaneously.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.