Drive shaft alignment-Soft foot

Alignment-Soft foot:-

Soft foot is the condition, when all feet of the pump or motor are not in one plane.

How to detect soft foot while alignment of shaft?

-  Put machine on base.

- Do not tighten bolts of all feet.

- Attempt to pass thin feeler gauge under a foot of equipment.

- If the blade passes, that foot has Soft Foot.

- Check other feet.

How to rectify Soft foot?

- Measure Soft Foot gap.

- Tighten all hold nuts.

- Put dial gauge on each foot & loosen the bolt.

- If foot rises, put shims.

- Repeat process for each foot.

- Always tighten bolts in one sequence.