Dec 17, 2011 · Soft foot is one of the most prevalent conditions found in rotating machinery. This condition, if not corrected, makes an alignment job much more difficult and sometimes impossible. If …

Jun 7, 2022 · Tolerances Among the fundamental concerns ANSI/ASA S2.75-2017 addresses are acceptable relative shaft position (shaft alignment) tolerances. It also prescribes tolerances for other …

Jun 20, 2012 · Pre-Alignment Checklist Machine temperature Gross soft foot check Replacement of old shims Coupling assembly Adjustment of any mechanical looseness Run-out conditions Pipe strain …

Dec 2, 2022 · Once the soft foot amount is identified, it can be compensated for in the shim stack. The American National Standards Institute (ANSI)/American Standards Association (ASA) S2.75-2017 …

Apr 24, 2019 · Angular soft foot is also sometimes referred to as “skew.” There can also be the phenomenon of “base soft foot,” where nothing is wrong with the driver foot, but the base has the …

Jul 25, 2023 · Pump Commissioning Confirm the numbering of the pump to be inspected matches sign off documentation. Certify from the quality control unit the pipe strain, soft foot, alignment and runout …

Dec 17, 2011 · This is often called a soft foot condition. Bolting a pump to a base with a soft foot condition may result in misalignment of the pump shaft to the seal housing and place stress on the …

Undetected soft foot can lead to distortion of the machine frame when bolted down, causing damage to bearings, seals and higher than acceptable vibration on machine bearings. To check for soft foot, …

May 6, 2024 · In reliability and maintenance, base-related vibration and alignment problems are a commonly encountered issue. These can include: Soft foot Bearing misalignment within Machines, …

Oct 7, 2019 · A final alignment check should be made as nearly the last step before actual starting of the pump. A final check for “soft foot” should also be made at this stage. Place a dial indicator on the foot …