Section 17
Section 17
Tires and WheelsTires and Wheels
Introduction.Introduction. This section contains safety warn-This section contains safety warn-
ings that must be adhered to to prevent seriousings that must be adhered to to prevent serious
personal injury or death when servicing tires andpersonal injury or death when servicing tires and
wheels. wheels. Also included Also included are procedures are procedures for properlyfor properly
torquing the wheel nuts.torquing the wheel nuts.
Under no circumstancesUnder no circumstances
should anyone mount or demount tires withoutshould anyone mount or demount tires without
proper training as required in OSHA Rules andproper training as required in OSHA Rules and
Regulations 1910.177 “Servicing multi-pieceRegulations 1910.177 “Servicing multi-piece
and single and single piece rim piece rim wheels.” wheels.” Follow all Follow all pro-pro-
cedures and safety instructions.cedures and safety instructions.
Tires.Tires. Tires may represent one of the major directTires may represent one of the major direct
expenses of expenses of equipment operation. equipment operation. Refer to Refer to thethe
Goodyear Tire Maintenance Manual for properGoodyear Tire Maintenance Manual for proper
maintenance and repair of tires for optimal tire life.maintenance and repair of tires for optimal tire life.
The Goodyear Tire Maintenance Manual is aThe Goodyear Tire Maintenance Manual is a
generic tire maintenance manual covering tiregeneric tire maintenance manual covering tire
maintenance that apply to all brands of tires.maintenance that apply to all brands of tires.
Check the tires and valve caps daily for anyCheck the tires and valve caps daily for any
damage.damage.
All tiAll ti l t d f tl t d f t i ii i thth S f tS f t
Bias and Bias and radial constructiradial constructions must ons must never benever be
mixed on dual pair.mixed on dual pair.
Tire Inflation.Tire Inflation. The tire The tire pressure spressure should behould be
checked on a daily basis (refer to the serial datachecked on a daily basis (refer to the serial data
plate, located on the left side of the truck in frontplate, located on the left side of the truck in front
of the steer tire, for proper tire pressure).of the steer tire, for proper tire pressure).
Maintain the proper tireMaintain the proper tire
inflation pressures listed on the truck serialinflation pressures listed on the truck serial
data plate.data plate.
Tire Overinflation.Tire Overinflation. Overinflation results in highOverinflation results in high
cord stress even when the tire isn’t overloaded.cord stress even when the tire isn’t overloaded.
Stress reduces resistance to blowouts fromStress reduces resistance to blowouts from
impacts. impacts. It also increases It also increases the danger of the danger of the tirethe tire
being cut. being cut. The problem The problem can be can be compounded bycompounded by
poorly maintained working terrain.poorly maintained working terrain.
Tire Underinflation.Tire Underinflation. An underinflatAn underinflated ted tire wire willill
deflect too mucdeflect too much. h. It also leads It also leads to excessive to excessive side-side-
wall flexing. wall flexing. It is It is very important, very important, in wheel endsin wheel ends
employing dual tire pairs, that each tire have theemploying dual tire pairs, that each tire have the
correct air prescorrect air pressure. sure. This prevents This prevents one tire fromone tire from
carrying more of carrying more of the load than the load than the other tthe other tire. ire. Flex-Flex-
ing of an underinflated tire in a dual pair coulding of an underinflated tire in a dual pair could
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