PLATE 3937651 - Caterpillar

Coolant System
Pressurized system: Hot coolant can cause serious burn. To open cap, stop engine, wait until radiator is cool. Then loosen cap slowly to relieve the pressure.
To relieve the pressure from the coolant system, move the engine start switch to the OFF position. Allow the cooling system pressure cap to cool. The cap must be cool enough to touch with a bare hand. Remove the cooling system pressure cap slowly in order to relieve pressure.Fuel System
To relieve the pressure from the fuel system, move the engine start switch to the OFF position. High Pressure Fuel Lines (If Equipped)
Contact with high pressure fuel may cause fluid penetration and burn hazards. High pressure fuel spray may cause a fire hazard. Failure to follow these inspection, maintenance and service instructions may cause personal injury or death.
The high-pressure fuel lines are the fuel lines that are between the high-pressure fuel pump and the high-pressure fuel manifold and the fuel lines that are between the fuel manifold and cylinder head. These fuel lines are different from fuel lines on other fuel systems.The high-pressure fuel lines are different from fuel lines on other fuel systems because of the following:
The high-pressure fuel lines are constantly charged with high pressure.
The internal pressures of the high-pressure fuel lines are higher than other types of fuel system.Before any service or repair is performed on the engine fuel lines, perform the following tasks:
Move the engine start switch to the OFF position.
Wait for 10 minutes. Note: Fuel pressure can be monitored by Caterpillar Electronic Technician (ET).Do not loosen the high-pressure fuel lines in order to purge trapped air from the fuel system.Hydraulic System
Pressurized System!Hydraulic accumulators contain gas and oil under high pressure. DO NOT disconnect lines or disassemble any component of a pressurized accumulator. All gas pre-charge must be removed from the accumulator as instructed by the service manual before servicing the accumulator or any accumulator component.Failure to follow the instructions and warnings could result in personal injury or death.Only use dry nitrogen gas to recharge accumulators. See your Cat dealer for special equipment and detailed information for accumulator service and charging.
Perform the following procedure in order to relieve all pressure from the system:
Start the engine and fully retract the ejector blade. Move the ejector control to the FLOAT position.
Shut off the engine and then turn the engine start switch to the ON position.
Press the service brakes several times until all pressure is relieved from the oil in the service brake system.
Move the parking brake control between the ENGAGED position and the DISENGAGED position.
Repeat step 3 thru step 4. Repeat this procedure several times until all pressure is relieved from the oil in the parking brake system.
Turn the engine start switch to the OFF position.
Rotate the steering wheel clockwise and then rotate the steering wheel counterclockwise.
Carefully remove the filler cap from the