TIRE 4598921 - Caterpillar

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.
Engines with Electric Priming Pumps
There are many different types of electric priming pumps. These fuel pumps can be put into two categories. Remotely mounted fuel priming pump and secondary fuel filter mounted priming pump.
Illustration 1 g03721131
(1) Typical example of a remotely mounted priming pump.
(2) Typical example of a priming pump mounted on a secondary fuel filter.Priming the Fuel Injection Pump for a Variable Speed Engine
Turn the engine start switch to the START position and release. The electric priming pump will begin to prime the system. Allow 180 seconds for the electric priming pump to prime the system.
Turn the engine start switch to the OFF position and then start the engine with the throttle in the closed position. Operate the engine at idle with no load for 60 seconds and then shutdown the engine.
Wait 30 seconds and start the engine. This procedure will remove any air that could be trapped within the fuel injection pump. Check for leaks in the fuel