Rebuilding tips for balancing equipment Paying closer attention to equipment setup has found to be beneficial. Most rebuilders have some type of balancing machinery. Many members have questions how to gain repeatability out of their balancer. It appears many rebuilders are faced daily with problems cycling around converter balancing.
After careful consideration and conversations with different shops, we have found some helpful hints that may encourage reliable balancing.
First, location of the balancer should be considered vital and should be placed away from other machinery in which vibrations could travel across the floor. A good recommendation is to use machine isolators, or pads, under the mounting legs of the balancer. These pads consist of a plywood-type material coated with a thin layer of rubber, which prevents vibrations within the building to be transferred to the balancer.
After isolation is assured, leveling the machine is a must. This is easily accomplished with a carpenter’s level or equivalent and by following the manufacturer’s instructions for installation. One consideration that may aid in installation is to locate the balancer in an area that is not prone to wind or severe drafts, such as doorways and windows.
Secondly, be sure to balance the clutch and turbine as an assembly rather that separately. Each component may be off only by a few grams, and when assembled, will cause a unbalanced condition. By balancing the components together and marking them, you are able to assure yourself that the internal components will not affect your balancing operation. The impeller and front cover may each be balanced separately, before converter assembly. This allows the rebuilder to index the two halves to obtain a cancelling-effect. For instance, if the impeller is five grams out of balance, mark the heavy side with a marker for identification purposes. Then balance the front cover. If the front cover shows an out-of-balance condition, again, mark the unbalanced portion. After assembling the converter, you may be able to line the marked spots across from one another to help cancel out the out-of-balance condition. This will help eliminate the need to add extra counterweight material.
Found in issue November 2005