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Sundstrand Sauer Danfoss Series 15 Uline Repair Charge Relief ValvesTake out the plug (23) and put in the spring (26) and poppet (27) out of the housing. Try not to mess with the shims or any of the interchangeable parts with any other valve. Look the poppet over and put it back in and remove any contamination in the valve. Repair parts that are need and reinstall back into the housing bore. Implement Relief Valve …this is optionalDo the same procedure with this as you did with the charge relief valve.If you have any questions, please let us know.800-361-0068sales@hydrostatic-transmission.com

Sundstrand Sauer Danfoss Series 40 M46 Charge Check Valve The charge check valve has been improved by elevating the spring force on the check valve spring used in the charge check valve. It will help by making sure the check valve is closing under cold system operations. The new replacement spring is interchangeable with the older version. But the older spring style will no longer be available as a service part. If you have any other questions on this, please contact us at800-361-0068sales@hydrostatic-transmission.com

Sundstrand Sauer Danfoss Series 40 M46 Trunnion Lip Seal This will affect the Series 40- M25, M35 and M44 pumps and variable motors. Made a change to the trunnion seal design by the dust lip to be extended, giving more system centering tolerance and a little more lead way when it is being put in. After this new makeup, there will be less how hour trunnion seal failures that were caused by not putting it in correctly.And the new seal can be used on the old style, the manufacture suggests that the old seal be replaced with a new one...

Sundstrand Sauer Danfoss Series 40 M46 MDC Bracket Change They have changed the bracket so it will be able to give a better 38 degree MDC, by adding more material to it. The neutral return bracket remake will keep it working properly if the limit stops are exceeded.The new design bracket is interchangeable with the old bracket. But the old bracket will no longer be available. If you need more info on this, please call us800-361-0068sales@hydrostatic-transmission.com

Sundstrand Sauer Danfoss Series 40 MPV035D/MPT035D Trunnion Seal The trunnion seal is being added to the trunnion cover as a major improvement to series 40 variable and tandem direct displacement pumps.The trunnion cover/seal assy. and the trunnion seal are still stocked as service parts. The trunnion cover however is not in stock as a service part.If you need more info on this subject, please let us know.800-361-0068sales@hydrostatic-transmission.com