HARNESS AS 1122276 - Caterpillar

Do not loosen any high pressure fuel lines when the engine is running. The high pressure in the fuel lines can cause personal injury or death. Wait 60 seconds after the engine has stopped to allow pressure to purge before any service or repair is performed on the engine fuel lines.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
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Operate the fuel priming pump many times until increased resistance is felt.
Do not crank the engine continuously for more than 30 seconds. Allow the starting motor to cool for two minutes before cranking the engine again.
Start the engine. After the engine has started, operate the engine at low idle for a minimum of five minutes. If the engine will not start, further priming is necessary.Note: Operating the engine for this period of time will help ensure that the fuel system is free of air.Note: Do not loosen the high pressure fuel line in order to purge air from the fuel system. This procedure is not required.