When inspecting a Danfoss Series 90 piston pump, several key components should be inspected to ensure proper operation and to identify any potential problems. The following are the main inspection parts of the Danfoss 90 series piston pump: Plunger: Inspect the plunger for any signs of wear, scratches, or damage. Make sure the plunger is clean and free of debris or contamination. Any damage or irregularity in the plunger can affect pump performance and fluid flow. Packing and Seals: Check packing and seals for leaks or signs of wear. Look for any visible damage or degradation that may affect the pump's ability to seal. Damaged or worn packing and seals should be replaced to prevent leaks and maintain proper pressure. Valves: Check that the suction and discharge valves are properly seated and operating. Make sure the valve opens and closes smoothly without any sticking or sticking. Look for signs of wear, such as grooves or pitting on the seat. Any problem with the valve can cause improper flow or pressure fluctuations. Cylinder block and casing: Inspect the cylinder block and casing for cracks, corrosion, or other structural damage. Check around these areas for signs of fluid leaks. A damaged cylinder or casing can affect the overall performance and reliability of the pump. Bearings: Check bearings for wear or play. Make sure they turn smoothly without excessive noise or vibration. If necessary, lubricate the bearings according to the manufacturer's recommendations. Worn or damaged bearings should be replaced to prevent further damage to the pump. Drive Shaft: Check the drive shaft for any signs of bending, misalignment, or excessive play. Make sure the drive shaft is properly seated and aligned with the motor or engine. Any problem with the drive shaft can affect the performance and life of the pump. Bolts and Fasteners: Check all bolts and fasteners to make sure they are properly tightened. Check for any loose or missing bolts and tighten them if necessary. Loose fasteners can cause vibration or cause other mechanical problems. 90-L-100-KP-1-AB-80-P-4-S1-E-03-GBA-35-35-24 90L100KP1AB80P4S1E03GBA353524 90-L-100-KP-1-AB-80-R-3-F1-E-03-GBA-14-35-24 90L100KP1AB80R3F1E03GBA143524 90-L-100-KP-1-AB-80-R-3-F1-F-03-GBA-23-23-24 90L100KP1AB80R3F1F03GBA232324 90-L-100-KP-1-AB-80-R-3-F1-F-03-GBA-32-32-24 90L100KP1AB80R3F1F03GBA323224 90-L-100-KP-1-AB-80-R-3-F1-F-03-GBA-42-42-24 90L100KP1AB80R3F1F03GBA424224 90-L-100-KP-1-AB-80-R-3-S1-F-00-GBA-26-26-24 90L100KP1AB80R3S1F00GBA262624 90-L-100-KP-1-AB-80-R-3-S1-F-03-GBA-35-35-24 90L100KP1AB80R3S1F03GBA353524 90-L-100-KP-1-AB-80-S-3-F1-E-03-GBA-29-29-24 90L100KP1AB80S3F1E03GBA292924 90-L-100-KP-1-AB-80-S-3-S1-F-03-GBA-42-42-24 90L100KP1AB80S3S1F03GBA424224 90-L-100-KP-1-AB-80-S-3-T2-F-00-GBA-35-35-20 90L100KP1AB80S3T2F00GBA353520 General Cleanliness: Make sure the pump is clean and free of debris, dirt or contamination. Clean any accumulated dirt or grime using proper cleaning methods. A clean pump runs more efficiently and reduces the risk of component damage. The specific maintenance manuals and instructions provided by Danfoss for Series 90 piston pumps must be consulted. These guidelines will provide detailed instructions on inspection procedures, recommended intervals and any specific considerations for your pump model. Following the manufacturer's recommendations will ensure proper maintenance and prolong the life of your pump. certainly! Let's add some points to continue discussing the key inspection parts of Danfoss 90 series plunger pumps: High-pressure seals: Check for worn, leaking, or damaged high-pressure seals (also known as cup seals or high-pressure packing). These seals are responsible for maintaining the pressure within the pump. Look for signs of deformation, cracks or excessive wear on the seals. Replace any damaged or worn seals to prevent leaks and ensure optimum pump performance. O-rings and gaskets: Check the O-rings and gaskets in the pump for signs of deterioration, cracks, or leaks. These components are critical to creating a tight seal between the different pump components. Replace any damaged or worn O-rings or gaskets to maintain a proper seal and prevent fluid leakage. Pressure gauges and sensors: Check the pressure gauges and sensors connected to the pump to make sure they are working properly. Verify that the readings are accurate and within the specified range. Calibrate or replace any faulty or inaccurate gauges or sensors to ensure accurate pressure monitoring. Lubrication system: If the Danfoss 90 series plunger pump has a lubrication system, check whether it is working properly. Check oil level, condition and cleanliness. Verify that the lubrication system is providing adequate lubrication to the pump components. Clean or replace the filter and top up or change the lubricant according to the manufacturer's recommendations. Electrical connections: If the pump is equipped with electrical components, check the tightness and safety of the electrical connections. Make sure the wiring is intact and there are no loose or damaged connections. Check for signs of overheating or damaged insulation. Repair or replace any faulty electrical connections to maintain reliable operation. Overall Operation: During the inspection, observe the overall operation of the pump for any unusual noise, vibration, or performance issues. Note changes in flow rate, pressure, or any other abnormalities that may indicate a problem. Any unusual or inconsistent behavior should be investigated and dealt with promptly. 90-L-100-KP-1-AB-80-S-4-F1-E-03-GBA-42-42-24 90L100KP1AB80S4F1E03GBA424224 90-L-100-KP-1-AB-80-S-4-F1-F-03-GBA-42-42-24 90L100KP1AB80S4F1F03GBA424224 90-L-100-KP-1-AB-81-S-3-T2-F-00-EBC-35-35-20 90L100KP1AB81S3T2F00EBC353520 90-L-100-KP-1-AB-81-S-4-F1-E-03-GBA-42-42-24 90L100KP1AB81S4F1E03GBA424224 90-L-100-KP-1-AC-60-L-3-F1-E-03-GBA-38-38-20 90L100KP1AC60L3F1E03GBA383820 90-L-100-KP-1-AC-60-P-4-S1-E-02-GBA-35-35-24 90L100KP1AC60P4S1E02GBA353524 90-L-100-KP-1-AC-60-R-3-F1-E-03-GBA-14-32-24 90L100KP1AC60R3F1E03GBA143224 90-L-100-KP-1-AC-60-R-3-F1-E-03-GBA-14-35-24 90L100KP1AC60R3F1E03GBA143524 90-L-100-KP-1-AC-80-S-3-S1-E-03-GBA-32-32-24 90L100KP1AC80S3S1E03GBA323224 90-L-100-KP-1-BB-60-L-3-F1-E-04-GBA-35-35-20 90L100KP1BB60L3F1E04GBA353520 Manufacturer's Guide: Always refer to the manufacturer's maintenance and inspection guide specific to the Danfoss Series 90 piston pump model. These guidelines will provide detailed instructions on recommended inspection procedures, intervals, and any specific considerations for specific pump models. Regular inspection of these critical components and adherence to the manufacturer's maintenance guidelines are critical to spot potential problems early, ensure peak performance, and prevent costly failure or damage. It is also recommended to consult an Authorized Service Provider or a Danfoss-trained technician for expert assistance in inspecting and maintaining Danfoss Series 90 piston pumps.