. OPERATION OPERATION HANDLING TIRES PRECAUTIONS WHEN HANDLING TIRES WARNING If tires in the following condition are used, there is danger that the tire may burst when the machine is traveling, causing the machine to tip over or parts to fly off. This may result in damage or serious personal injury. Always replace damaged tires with new tires.
Tires where the bead wire has been cut, broken, or greatly deformed Excessively worn tires where more than 1/4 of the circumference of the carcass ply (excluding the breaker) is exposed Tires where damage to the carcass exceeds 1/3 of the tire width Tires where ply separation has occurred Tires where radial cracks extend to the carcass Tires where there is abnormal deterioration, deformation, and damage, and the tire cannot withstand use. Please contact your Komatsu distributor when replacing the tires. Always be careful when jacking up the machine. If the machine is not jacked up properly, the machine may lose its balance, come down, and cause a serious accident.
3 - 123 T.Km.P.H (Ton-Km-Per-Ho ur Rating) Tires for construction equipme nt are used under severe conditions that bear no compariso n with the tires used on cars, buses, or ordinary trucks, so they are specially designed to withstand these conditio ns. off-road tires when the Compared with ordinary tires, far greater heat is produced in the rubber internal parts of machine is traveling. If they ar e used continuously under conditions which exceed the p ermitted load and travel speed of the tire, the internal te mperature will exceed the limit, and the rubber may become soft and heat separation occur.
The T.Km.P.H rating is provide d as a standard to allow the machine to travel without causi ng the above problems. If tires are used for work that e xceeds the tires' T.Km.P.H rating (the T.Km.P.H rating for the work is greater than the T.Km.P.H rating for the tire s), tire trouble will become more frequent because of the ge neration of heat. In such cases, do as follows. ns easier so that the operation T.Km.P.H. of the work is lowered. to a tire with a high T.Km.P.H. Make the operating conditio ns easier so that the operation T.Km.P.H. of the work is low Increase the size of the tires