O-RING BOSS E391851 - Caterpillar

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This safety message is located on the radiator cap access cover.
Pressurized system! Hot coolant can cause serious burns, injury or death. To open the cooling system filler cap, stop the engine and wait until the cooling system components are cool. Loosen the cooling system pressure cap slowly in order to relieve the pressure. Read and understand the Operation and Maintenance Manual before performing any cooling system maintenance.
(7) Hot Fluid Under Pressure
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This safety message is located on top of the hydraulic tank.
Pressurized system! Hot coolant can cause serious burns, injury or death. To open the cooling system filler cap, stop the engine and wait until the cooling system components are cool. Loosen the cooling system pressure cap slowly in order to relieve the pressure. Read and understand the Operation and Maintenance Manual before performing any cooling system maintenance.
(8) Hot Surface
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This safety message is located on top of the engine hood.
Hot parts or hot components can cause burns or personal injury. Do not allow hot parts or components to contact your skin. Use protective clothing or protective equipment to protect your skin.
(9) Hot Surface
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This safety message is located on the underside of the engine hood.
Hot parts or hot components can cause burns or personal injury. Do not allow hot parts or components to contact your skin. Use protective clothing or protective equipment to protect your skin.
(10) Improper Connections for Jump Start Cables
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This safety message is located inside the left front compartment.
Explosion Hazard! Improper jumper cable connections can cause an explosion resulting in serious injury or death. Batteries may be located in separate compartments. Refer to the Operation and Maintenance Manual for the correct jump starting procedure.
(11) Machine Swings
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This safety message is located on both sides of the back end of the machine.
Machine swings. Stay back. Crushing hazard could cause serious injury or death.
(12) Seat Belt
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This safety message is located in the cab.
A seat belt should be worn at all times during machine operation to prevent serious injury or death in the event of an accident or machine overturn. Failure to wear a seat belt during machine operation may result in serious injury or death.