Danfoss OSPB and OSPC Service Manual

The OSPB and OSPC are hydrostatic steering units. On Franna machines they take the steering wheel input and meter oil to the steering cylinders, so the machine turns when you tell it to. When one gets heavy, leaks or wanders, the tech or shop owner pulls it off and wants a procedure to open it up and put it back together right. That's what this manual is for.

What this manual helps you do

• Follow the dismantling sequence for the OSPB and OSPC steering unit, step by step.
• Rebuild the unit using the reassembling procedure once you've got the parts you need.
• Check the tools you'll need before you start, so the job doesn't stall halfway.
• Verify max. tightening torque and hydraulic connections as you close the unit up and plumb it back in.
• Identify each part from the exploded view covering OSPB, OSPC and OSPC LS.

Who this is for

Independent repair shops and rental fleet mechanics who rebuild steering units in-house. Also useful to a crane service technician or dealer technician who has a Franna machine on the bench and no paperwork for the steering unit.

FAQ

Q: What do I receive and how is it organised?

A: One PDF file, 44 pages, in English. It's the complete manual, with sections for cost-free repairs, tools, dismantling, reassembling, tightening torque and hydraulic connections, service shops, and the exploded view.

Q: Which machine or component does it fit?

A: It's the Danfoss Hydrostatic Steering Unit Service Manual, publication number HN.21.AC.02, for the OSPB and OSPC, including the OSPC LS shown in the exploded view. It's used on Franna machines.

Q: How does it fit the job I'm doing?

A: If you're pulling a steering unit to reseal or rebuild it, the dismantling and reassembling sections give you the order of work. The torque and connection section covers the final checks.

If you're rebuilding an OSPB or OSPC, this manual gives you the tools, the teardown, the rebuild and the tightening specs in one PDF.

Click here to view the preview (PDF)

Table of Contents:

• Cost-free repairs
• Tools
• Dismantling
• Reassembling
• Max. tightening torque and hydraulic connections
• Service shops
• Exploded view: OSPB/OSPC/OSPC LS

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