HARNESS AS-PANEL 2389840 - 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
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 fuel lines are different from fuel lines on other fuel systems because of the following differences:
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
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Hoist
To relieve the pressure from the hoist circuit, lower completely the truck body and move the hoist control to the FLOAT position. Then move the engine start switch to the OFF position.Steering
To relieve the pressure from the steering system, move the engine start switch to the OFF position and rotate the steering wheel several times in both directions.Brake
To relieve the pressure from the brake circuit, move the engine start switch to the OFF position. This will activate a solenoid valve in order to release the hydraulic brake pressure from the brake accumulators.Brake Accumulators
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