Service Manual
K and L Frame Variable Motors, Cartridge Mount
Fluid and filter maintenance
Recommendations
©
Danfoss | July 2017
To ensure optimum life of these motors, perform regular maintenance of the fluid and filter.
Contaminated fluid is the main cause of unit failure. Take care to maintain fluid cleanliness when
servicing.
Check the reservoir daily for proper fluid level, the presence of water, and rancid fluid odor. Fluid
contaminated by water may appear cloudy or milky or free water may settle in the bottom of the
reservoir. Rancid odor indicates the fluid has been exposed to excessive heat. Change the fluid
immediately if these conditions occur. Correct the problem immediately.
Change the fluid and filter per the vehicle / machine manufacturer's recommendations or at these
intervals:
Fluid and filter change interval
Reservoir type
Sealed
Breather
Change the fluid more frequently if it becomes contaminated with foreign matter (dirt, water, grease,
etc.) or if the fluid is subjected to temperature levels greater that the recommended maximum.
Dispose of used hydraulic fluid properly. Never reuse hydraulic fluid.
Change filters whenever the fluid is changed or when the filter indicator shows that it is necessary to
change the filter. Replace all fluid lost during filter change.
Max oil change interval
2000 hours
500 hours
520L0631 | AX00000042en-US0402 | 13
Need help?
Do you have a question about the K Frame Series and is the answer not in the manual?
Questions and answers