Description

Sauer Danfoss OMP 1997 Parts Catalog

If you are rebuilding a Sauer Danfoss OMP series 7 hydraulic motor and you do not have the factory parts list and torque numbers, you are working blind. That is a fact, not an opinion. I have seen seasoned techs snap a shaft or strip a housing flange because they guessed the tightening torque. This Parts Catalog from 1997 is 16 pages of exactly what you need: an exploded view with correct order, a spare parts list with actual part numbers, and the disassembly/assembly procedure backed by OEM torque values. No aftermarket guesswork. No “compatible” substitutions. Just the original Sauer Danfoss data.

Every part number listed on page 4 comes straight from the factory drawing. If you need a replacement gerotor set or a shaft seal, you find the number here. Then you call your distributor and order the right piece the first time. That cuts down your downtime and your parts return trip to the counter.

Tightening Torque: What Page 7 Tells You

Torque specs are where most DIYers and even some pros screw up. The manual dedicates page 7 to tightening torque for the OMP series 7 SAE versions. You get foot-pounds values for every critical fastener – the housing bolts, the end cover, the shaft nut. Use a calibrated torque wrench. Do not guess. I don’t care if you have been wrenching for thirty years, the spec for that cover is what the engineer designed it to. Page 7 gives it to you. Use it.

Exploded View of the OMP Motor

Page 3 shows the OMP motor taken apart in an exploded view. Each part is keyed to a number that ties directly to the spare parts list on page 4. You can identify the gerotor, the drive shaft, the housing, the seal kit components. If you have never seen the inside of an orbital motor, this drawing is worth the price of the catalog alone. Lay your parts out in that order during disassembly and you won’t lose track of what goes where.

Disassembly Steps from the Manual

Disassembly starts on page 8. The procedure is written for a tech who knows how to handle hydraulic components, but it gives the sequence. Remove the end cover, pull the gerotor set, extract the shaft. Pay attention to the orientation marks – the manual specifies that. Skip that step and you could reassemble the motor with the gerotor 180 degrees off and get zero rotation. I have seen that happen.

Assembly is on page 11. It walks you through reinstallation in reverse, with the torque values from page 7 called out. Use new seals. Lubricate the gerotor with clean hydraulic fluid before assembly. Then torque each bolt to the spec in the order shown. That is the difference between a rebuild that holds oil and one that leaks.

Where Does This Parts Catalog Fit?

This catalog is for anyone who owns, maintains, or rebuilds equipment that uses a Sauer Danfoss OMP series 7 orbital motor. That includes agricultural sprayers, forklifts, skid-steer attachments, and industrial machinery. If you work on aftermarket versions, you still need the original spec to verify that the replacement parts match. The same principle applies to other systems – for example, when rebuilding an Air Conditioning Compressor or a Valvetrain Components, the factory clearances and torques are non-negotiable.

Related factory manuals that follow the same OEM standard:

• Sauer-Danfoss DSW Orbital Motors Technical Manual”>Sauer-Danfoss DSW Orbital Motors Technical Manual
• Sauer-Danfoss TMK TMKW 2008 Technical Manual”>Sauer-Danfoss TMK TMKW 2008 Technical Manual
• Sauer Danfoss Series 90 2008 Technical Manual – OEM Specs”>Sauer Danfoss Series 90 2008 Technical Manual – OEM Specs

Source Authenticity: OEM vs. Aftermarket

This is not a scan of someone’s photocopy. This is the original Sauer Danfoss publication number HN.11.K7.93, dated 06-1997. It supersedes HN.11.K6.93. The 16 pages include the front-matter with authorized service shops (page 2) and the cost-free repair policy – that tells you the document is official. Aftermarket companies often reprint the exploded view but leave out the torque table or change the page layout. Here you get the exact factory layout, the same numbering, the same footnotes. That matters when you are trying to match a part number that changes between revisions.

3 Critical Sections in the 16 Pages

• Spare parts list (page 4): Lists every component with its part number. No vague descriptions like “seal kit” without the number. You get the exact kit reference.
• Tightening torque (page 7): As mentioned, this is where mistakes are avoided. Use it.
• Disassembly/Assembly (pages 8-11): Step-by-step with warnings about orientation and seal replacement.

One caution: page 2 references authorized service shops. If your motor is under warranty, take it to them. If not, and you are doing your own rebuild, this catalog gives you the same information the shops use. Do not expect a how-to for beginners – the manual assumes you can handle a basic motor teardown. But if you have done a few, it is sufficient.

FAQ

Does this manual include torque values?

Yes, page 7 has a dedicated tightening torque table for the OMP series 7 SAE versions.

Are the exploded views detailed enough for a beginner?

The exploded view on page 3 shows each part in correct order. However, you need some basic understanding of hydraulic motors to interpret it. The parts list on page 4 gives the exact part numbers for ordering. The assembly section on page 11 walks you through the sequence step by step, with torque specs referenced. If you have never taken one apart, read the disassembly section on page 8 first and lay parts out in order. This is not a training manual, but with patience you can get through it. If you are completely new to orbital motors, pair this catalog with a practical video from a trusted source.

Can I use this for OMP series 6 motors?

No. This catalog specifically covers OMP series 7 SAE versions. Series 6 uses different parts and different torque specs.

What years does this catalog cover?

Published in 1997, it supersedes the previous edition HN.11.K6.93. It covers the motors in production at that time. For later revisions, check the date code on your motor.

If you are doing a rebuild on a Sauer Danfoss OMP orbital motor, you need this catalog open next to your workbench. The factory torque spec, the correct part number, the assembly order – all in 16 pages. Access the Factory Manual now and keep it in your shop reference binder.