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Software tools for checksoft.Many downloads like Checksoft Premier V12 may also include a serial number, cd key or keygen. If the internal alignment is not correct, the external alignment will not matter.License: Free OS: Windows XP Windows Vista Windows 7 Windows 8Checksoft Home Business 2010 Free Crack Serial Keygen Full. This condition, if not corrected, makes an alignment job much more difficult and sometimes impossible. August 18, 2019-18+, T&C Apply, New Soft foot is one of the most prevalent conditions found in rotating machinery. Free Spins-5 Free on Sign Up Mobile Ready Casino Easy To Nagivate Casiplay.
When the fourth point, or foot, is shorter than the other three, a soft foot condition exists. Create and manage checking, savings, credit card, and money market accounts.Think of it this way-three points (machine feet in our case) define a plane. Check designs work for Checksoft, Quicken, QuickBooks, MS Small Business Accounting and MS Money.
The CHECK SOFT STORY option may added to a FLOOR DIAPHRAGM command.What are the causes of soft foot? The frame can be warped or bent. Soft foot that is not as discernable can exist and will cause alignment problems and even cause machine failure if not corrected.Note: Soft story checks are applicable to structures with rigid floor diaphragm definitions. It is easily discernable and correctable with shims. This is called gross soft foot.
Tightening down feet where a gap exists (using torque or tension to remove the gap) will cause feet to be bent and sometimes crack. A combination of these issues is most likely.Besides making alignment difficult, there are many reasons why soft foot should be corrected. Machine feet can be bent or broken. The foundation can be uneven or damaged.
Soft foot can be seen as looseness and exhibit a high 1x vibration signature. Any critical component that comes in contact with the rotation of the shaft can be affected.A laser alignment system will record values for you.Soft foot can cause high levels of vibration. This condition will put undue stress on the shaft and upset critical clearances in both the driving and the driven machine-bearings, mechanical and shaft seals, pump wear rings, motor armature, stator gaps, etc.
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Measuring and Correcting Soft FootNow that we know that soft foot is bad, we will discuss how to measure and correct it. Looseness may eventually present as a high 2x line frequency (7,200 cpm) due to eccentric air gap. At this point, the machine can shift drastically. Vibration can cause loosening of feet bolts, and shims can work their way out from under the feet.
More shims than that can actually cause a type of soft foot called springy foot. Remember, only three to four shims should be under any foot. Make sure any dirt and debris is cleaned from under the foot-we always want good metal to metal contact, baseplate to shim to machine foot.
One dial indicator can be used and moved from foot to foot as you loosen and tighten. This will show the dynamic movement of the entire machine. With dial indicators, the best method is to place a dial indicator at each foot and measure the movement on each dial as you loosen and tighten each bolt. Read the instruction manual carefully to follow the proper procedure.Now loosen and tighten each bolt, one at a time, in a systematic way to see how much each foot "springs" when it is loosened and all the other bolts are tight.
The movement of the dial stem will record the spring of each foot. Any foot that rises (springs) more than that needs to be shimmed. 25 mm of deflection is within tolerance.
They may (probably will) be unequal and this is where tin snips are needed. Note the gap at each corner of the foot.Now fill in those gaps. Next, use the feeler gauge to measure under each corner of the foot, paying attention for bent or cracked feet. Clean the base and the foot of the machine with a wire brush, making sure to remove any corrosion, debris or burrs. Keep in mind that more than one foot can be soft and each foot needs to be corrected.Having identified the soft feet, start by removing the existing shim pack from under the foot. This process is similar to the one used with a laser alignment system, but the laser system will record the values automatically.Now that we have determined our measurements, we have to fix the soft foot.
Use a diagonal pattern to tighten, from one corner to its diagonal opposite. Do not use more than three to four shims under any foot.Use the feeler gauge to measure under each corner of the foot, paying attention for bent or cracked feet.Once the gaps are filled, retighten all of the hold down bolts. Use the micrometer to measure the thickness of the shim pack as most shims have a tolerance factor. Shims can also be cut into L-shapes, partial Us or strips and be used to fill gaps accordingly.Use the measurements from the feeler gauge to build the shim pack. Shims can be cut and constructed to form a "stair step" under the foot.
Now you are ready to start your shaft alignment measurement.A lot of work can go into proper soft foot correction, but it is worth it. 25 mm.A good set of precision shims with actual thickness markings for precise stacking tolerances and some good tin snips will be needed to reconfigure shims.When you are confident soft foot is eliminated, re-tighten the bolts in the same pattern. Make sure that no foot has a deflection of more than 2 thou (mils) or. Once the bolts are tight, re-measure-loosening and tightening each bolt one at a time.
Do it right the first time and you will not have to do it again.For more information on soft foot and shaft alignment, see John Piotrowski's book, the Shaft Alignment Handbook , Third Edition. Remember, the goal is to always make rotating equipment last as long as possible.
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