48 LEATHER BELTING 



Belt Maintenance. In order that belts in service shall 

 not fall below the minimum tension, it is essential that 

 they be inspected and their tensions weighed at such intervals 

 as will insure their being retightened before they have 

 stretched to a point where they will fail to render the service 

 required of them. To insure this inspection a system of 

 maintenance is absolutely essential. The following system 

 is condensed from instructions issued by the Tabor Manu- 

 facturing Co. in connection with the belt benches above 

 described. 



Belt Data Necessary. The following data are necessary 

 in the operation of the system and should be ascertained for 

 every belt in the shop : 



1. Location of the belt. 



2. Its purpose; that is, whether it be used for a cone 

 or machine drive, countershaft drive or feed drive, etc. 



3. Exact length of the belt over the pulleys as taken 



with a steel tape. 



4. Width of the belt. 



5. Thickness of the belt. 



6. Maximum velocity at which the belt can be operated. 



7. Minimum velocity at which the belt can be operated. 



These data are entered upon a belting record, Fig. n, 

 together with such other information as may be useful, such 

 as the name of the maker, kind of belt and other information 

 which is called for on the record. In addition, the maximum 

 and minimum tensions as determined by the slide rule or the 

 horsepower tables on page 91 should be entered. 



Belt Symbols. For convenience in identifying belts, it is 

 desirable to provide a code of symbols, the use of which will 

 completely describe and locate any belt in the shop without 

 the necessity of using long written descriptions. The follow- 

 ing code of symbols is that recommended by the Tabor 

 Mfg. Co.: 



