CYL GP-BASIC 4747688 - Caterpillar

the words "use again" are in the description, the specification given can be used to determine if a part can be used again. If the part is equal to or within the specification given, use the part again.When the word "permissible" is in the description, the specification given is the "maximum or minimum" tolerance permitted before adjustment, repair and/or new parts are needed.A comparison can be made between the measurements of a worn part and the specifications of a new part to find the amount of wear. A part that is worn can be safe to use if an estimate of the remainder of its service life is good. If a short service life is expected, replace the part.Reference: For Systems Operation, make reference to 631E and 637E Wheel Tractor-Scraper Power Train, Form No. SENR4139. For tractor Testing and Adjusting, make reference to 631E and 637E Wheel Tractor Power Train, Form No. SENR4140.