Komatsu Galeo HD325-6, Operation & Maintenance Manual

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OPERATION
OPERATION
HANDLING TIRES
PRECAUTIONS WHEN HANDLING TIRES
WARNING
To ensure safety, the defective tires given below must be replaced 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.
It is dangerous to jack up the machine without taking due care.
T.Km.P.H (Ton-Km-Per-Hour Rating)
Tires for construction equipment are used under severe conditions that bear no comparison with the tires used on
cars, buses, or ordinary trucks, so they are specially designed to withstand these conditions.
Compared with ordinary tires, far greater heat is produced in the rubber internal parts of off-road tires when the
machine is traveling. If they are used continuously under conditions which exceed the permitted load and travel
speed of the tire, the internal temperature will exceed the limit, and the rubber may become soft and heat separation
occur.
To prevent such problems from occurring, the T.Km.P.H. is used as a standard to allow the machine to travel safely.
If operations are carried out which exceed the T.Km.P.H. of the tire (when the T.Km.P.H. of the work exceeds the
T.Km.P.H. of the tires), tire trouble will occur more frequently. In such cases, do as follows.
Make the operating conditions easier so that the operation T.Km.P.H. of the work is lowered.
Increase the size of the tires to a tire with a high T.Km.P.H.
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