90R100 pump Rebuild

The 90R100 pump manufactured by Sauer Danfoss based on the naming convention, is an axial piston pump.  Rebuilding it involves a complete overhaul to restore its functionality and performance to near-original specifications. Here's a breakdown of the process and why using a qualified technician is essential for a safe and successful rebuild

90R100 Pump Rebuild Process

Disassembly A qualified technician will meticulously disassemble the pump using specialized tools to avoid damaging components.

Cleaning All parts are thoroughly cleaned to remove contaminants like dirt, debris, and worn metal particles.

Inspection Each component is meticulously inspected for wear, cracks, or damage. The technician will identify parts that need replacement, such as

Bearings Reduce friction and support rotating components.

Seals and O-rings Essential for preventing leaks and maintaining proper pressure.

Valve Plate Controls the flow of hydraulic fluid within the pump.

Drive Components May include shafts, gears, or couplings depending on the pump model.

Pistons and Rings These components create the pumping action within the cylinder block. They might require replacement depending on the severity of wear.

Swashplate (if applicable) This component tilts the pistons, allowing for variable displacement and flow adjustment.

Parts Replacement Only high-quality replacement parts, preferably genuine parts from Sauer Danfoss, are used for optimal fit and functionality.

Reassembly The technician carefully reassembles the pump, ensuring proper alignment and torque specifications are met.

Testing The rebuilt pump undergoes rigorous testing to verify proper function, pressure output, and flow rates.

Benefits of Rebuilding a 90R100 Pump

Cost-Effectiveness Rebuilding can be significantly cheaper than purchasing a completely new 90R100 pump.

Extended Lifespan A properly rebuilt pump can extend the life of your hydraulic system for many years.

Improved Performance Refurbishing can restore the pump's performance to near-original specifications.

Importance of Using a Qualified Technician

Rebuilding a 90R100 pump is complex and requires specialized knowledge, tools, and safety precautions

High-Pressure Systems 90R100 pumps operate at high pressures, and improper handling can lead to serious injuries. Disassembly and reassembly require specific techniques to ensure proper pressurization and avoid leaks.

Technical Expertise Disassembly, cleaning, inspection, parts selection, reassembly, and testing all require a deep understanding of hydraulic systems and pump mechanics.

Specialized Tools Technicians use specialized tools to ensure proper disassembly, cleaning, and reassembly without damaging components. These tools might include piston pullers, torque wrenches, and pressure gauges.

Finding a Qualified Technician

Sauer Danfoss Authorized Service Centers Locating an authorized Sauer Danfoss service center is the ideal option. These centers have factory-trained technicians with expertise in working on 90R100 pumps.

Hydraulic Repair Specialists Look for reputable hydraulic repair shops with experience in rebuilding Sauer Danfoss pumps.

Additional Considerations

90R100 Parts Availability For older models, genuine Sauer Danfoss parts might be limited. The technician can advise on compatible replacements if necessary.

Cost of Rebuild Get quotes from several qualified technicians before making a decision. The cost will depend on the extent of rebuild required and parts replacement needed.

Rebuild vs. Replace In some cases, depending on the pump's condition and parts availability, replacing the 90R100 pump with a new or remanufactured unit might be a more cost-effective option. The technician can advise you on the best course of action based on your specific situation.

Safety Note

Rebuilding a hydraulic pump is not a DIY project. Always prioritize safety and leave this task to a qualified hydraulics technician with the proper training and equipment.

Elephant Fluid Power is Chiense manufacturer who providing the Sauer Danfoss OEM Pumps and Motors  

Danfoss LRR, KRR, JRR, FRR, ERR, 90R, 90M, MPV, MPT, 

LRR025 JRR045 FRR074 ERR100 90R042 MPV046 90M055

LRR030 JRR051 FRR090 ERR130 90R055 MPT046 90M075

KRR038 JRR060 MPV046 ERR147 90R075 90M100

KRR045 JRR065 MPT046 90R100 90R180 90M075

JRR075 90R130 90R250 90M0100

All are Brand NEW 

Performance same with original 

Factory price. 

Our company name Elephant Fluid Power  

www.heavyequipmentmaintain.com