OM2036 08/11 Safety - Section 20 Page 20-13 TIRES The tire inflation pressure and permissible speeds, given in this manual, are general values. The actual values may differ, depending on the type of tire and the specific operating conditions. For details, please consult the tire manufacturer. Handling Tires Rim and tire maintenance can be hazardous unless the correct procedures are followed by trained personnel. Improperly maintained or inflated tires can overheat and burst due to excessive pressure. Improper infla- tion can also result in cuts in the tire caused by sharp stones. Both of these conditions can lead to tire dam- age, serious personal injury, or even death.
When the tires become overheated, a flammable gas is produced inside the tire which can ignite. It is par- ticularly dangerous if the tires become overheated while the tires are pressurized. If the gas generated inside the tire ignites, the internal pressure will sud- denly rise, and the tire will explode, resulting in dan- ger and/or death to personnel in the area. Explosions differ from punctures or tire bursts because the destructive force of the explosion is extremely large. Therefore, the following operations are strictly pro- hibited when the tire is pressurized: To safely maintain a tire, adhere to the following con- ditions:
Before a tire is removed from a vehicle for tire repair, the valve core must be partially removed to allow deflation, and then the tire/rim assembly can be removed. During deflation, persons must stand outside of the potential trajectory of the locking ring of a multi-piece wheel rim. Welding the rim. After the tire/rim assembly is installed on the vehicle, inflate the tires to their specified pressure. Abnormal heat is generated, particularly when the inflation pressure is too low. Welding near the wheel or tire. Smoking or creating open flames. NOTE: To prevent injury from the wheel rims during tire inflation, use one of the following: 1.
A wheel cage or other restraining device that will constrain all wheel rim components during an explosive separation of a multi-piece wheel rim, or during the sudden release of air. 2. A stand-off inflation device which permits a per- son to stand outside of the potential trajectory of the wheel components. Use the specified tires.