Industrial / Pumps & Motors
Parts Manual for Danfoss Series 51 160cc Variable Displacement Motor
Comprehensive parts manual for the Danfoss Series 51 160cc variable displacement motor. Includes detailed parts configurations, identification procedures, service bulletins, and component lists for maintenance and repair.
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
This manual is designed to help you identify and order service parts for the Danfoss Series 51 160cc variable displacement motor. To ensure you order the correct components, always refer to the nameplate on your specific unit.
Product identification
Each motor features a nameplate on the housing containing critical information:
- Model code: Defines the specific unit configuration. Use this when ordering parts.
- Model/material number: Used by the factory for manufacturing and repeat orders.
- Serial number: Identifies the manufacture date (year and week) and unit sequence.
Using the parts manual
The manual is divided into sections based on the motor's modular components, such as Special Hardware, Endcap, Control, and Servo Supply. Each section contains:
- Parts Configuration: Exploded view diagrams showing the assembly order.
- Parts Tables: Lists of items, part numbers, and descriptions. Pay close attention to the "Date begin" and "Date end" columns, as parts may vary based on the manufacture date.
Service bulletins
The final section contains important service bulletins. These documents provide critical updates regarding part interchangeability, design changes, and assembly procedures. Always review these before ordering parts to ensure you have the latest information.
Maintenance
For general maintenance, refer to the "Overhaul Seal Kit" section. This lists all seals and gaskets required for a complete overhaul of the Series 51 160cc motor.
Manufacturer information
Danfoss A/S
Practical help
Common problems
Incorrect part ordered
Verify the date code on the unit's nameplate against the 'Date begin' and 'Date end' columns in the parts tables.
Part interchangeability issues
Check the 'Service bulletin' section at the end of the manual for updates on part replacements and compatibility.
Before use
- Locate the nameplate on the motor housing.
- Identify the Model Code and Serial Number.
- Determine the manufacture date code (year and week).
- Consult the relevant section (e.g., Control, Endcap) based on your specific configuration.
Specs in practice
- Serial Number
- Identifies the specific unit and warranty period.
Images and diagrams
- Exploded views show the assembly order of components.
- Asterisks (*) indicate parts included in the base motor seal kit.
Model compatibility
- Parts are often specific to manufacture date ranges.
- Always check Service Bulletins before ordering parts.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.