tailieunhanh - Handbook Of Shaft Alignment Episode 1 Part 8

Tham khảo tài liệu 'handbook of shaft alignment episode 1 part 8', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 180 Shaft Alignment Handbook Third Edition Dial indicator basics Stem moves outward Back plunger type Stem moves inward Needle rotates counter clockwise Needle moves clockwise FIGURE Dial indicator basic operation. DIAL INDICATOR BASICS Since the use of dial indicators will be discussed frequently in this chapter Figure shows the basic operating principle of this versatile measurement tool. It is highly recommended to get familiar with this device since it will be used for a wide variety of tasks in the overall process of machinery installation troubleshooting problem solving and shaft alignment. DAMAGED WORN OR IMPROPERLY INSTALLED MACHINERY COMPONENT CHeCkS Every once in a while you may have the pleasure of installing brand new rotating machinery. If you are in the construction industry that is primarily what you will be doing. However in a maintenance organization you will very likely be working with equipment that has been in service for sometime and invariably it is required to find and correct a problem with the Preliminary Alignment Checks 181 Shaft lift check Place the indicators on top of the shaft or coupling hub and hold the dial indicators steady Lift upward on each shaft and note the dial indicator readings FIGURE How to perform a shaft lift check. equipment. Chapter 1 discussed the four different maintenance philosophies. The ultimate goal of a quality maintenance group is to achieve proactive or prevention maintenance status. The capacity to detect ensuing problems with machinery stop the damage before it becomes a financial loss to the company have the capability to quickly detect the problems with the equipment and engineer the corrective measures to prevent the malady from occurring again is the ultimate goal. Very few people have been able to attain this level of performance. This chapter discusses many of the tasks that make the difference between run-to-failure maintenance and proactive or preventive maintenance. If .