. OPERATION OPERATION HANDLING THE TIRES PRECAUTIONS WHEN HANDLING TIRES CAUTION equipment wear or other Please contact your Komatsu distributor when replacing the tires. It is dangerous to jack up the machine without taking due care. 3 - 140 If a tire ha s reached any of the following service limits , ther the tire m ay burst or cause an accident, so to ensure safety a n ew tire Servic When tires (a on a n t a point approx. 1/4 o ew tire.
the tire shows mar When abnor Servic mal wear, or when the e limits for damage When there is external dam age extending to the c ord or is brok When the cord is cut or the When the tire is peeling (the When the bead is damaged For tu beless tires, when the re is air leakage or imprope TIRE PRESSURE efore starting operations, when the tires are cool. Measure the tire pressure b efore starting operations If t he tire inflation pressure is too low, there will be o verload; if it is too high, it will cause tire cuts and shock burst.
To preve nt these problems , adjust the tire inflation p ressure according to the table on th Deflectio As a gui deline that can be checked visibly, the deflection ratio of the front tire (deflection /free height) is as follows. When ca rrying normal load (lift arm horizontal): Approx. 15 to 25 % . 25 to 35 % When di gging (rear wheels off ground): Approx . 25 t