GEAR 2237967 - Caterpillar

Stopping the engine immediately after it has been working under load can result in overheating and accelerated wear of engine components.Excessive temperatures in the turbocharger centerhousing will cause oil coking problems.Allow the engine to gradually cool before stopping the engine
There may be several methods for shutting off the engine. Make sure that the shutoff procedures are understood. Use the following general guidelines for stopping the engine.Automatic Stopping
Automatic stopping will occur when the engine is operating in the automatic mode and the remote start/stop initiate contact opens. If the cooldown feature is utilized, the engine will operate for a programmed period of time before the engine stops. Otherwise, the engine will immediately shut off.Industrial Engines
Disengage the driven equipment. Unload the compressor or pump.
Disengage the clutch (if equipped).
Place the transmission and/or other attachments for the power take-off in NEUTRAL.
Reduce the engine rpm to low idle. Operate the engine at low idle rpm for a cooldown period before stopping the engine.
If the cooldown feature is utilized, turn the engine control switch to the "COOLDOWN/STOP" position. The engine will operate for a programmed period of time. After the cooldown, the timer will activate the fuel shutoff. The control panel will remain powered until the engine control switch is turned to the "OFF/RESET" position.
If the engine has been operated at a low load, operate the engine at low idle for approximately 30 seconds before stopping the engine.
If the engine has been operated at a high load, operate the engine at low idle for three to five minutes before stopping the engine.
Turn the engine control switch to the stop position. The engine will coast to a stop. Ensure that any system that provides external support to the engine operation is secured after the engine is stopped.Generator Set Engines
Open the main circuit breaker in order to disengage the driven equipment.
Operate the engine for a cooldown period before stopping the engine.
If the cooldown feature is utilized, turn the engine control switch to the "COOLDOWN/STOP" position. The engine will operate for a programmed period of time. After the cooldown, the timer will activate the fuel shutoff. The engine control module will remain powered until the engine control switch is turned to the "OFF/RESET" position.
If the cooldown feature is not utilized, operate the engine at high idle for approximately five minutes. Then stop the engine.
Illustration 1 g00320124
Engine control switch in the "OFF/RESET" position
Turn the engine control switch to the "OFF/RESET" position. The engine will coast to a stop. Ensure that any system that provides external support to the engine is secured after the engine is stopped.