805101T Mercruiser THRUST HUB, Rear

Emergency Stopping
Emergency shutoff controls are for EMERGENCY use ONLY. DO NOT use emergency shutoff devices or controls for normal stopping procedure.
Make sure that any external system components that have been operating to support engine operation are secured after any stop.Emergency Stop Buttons
Emergency Stop Button, shown mounted on a junction box.Emergency stops may be made by pushing the Emergency Stop Button located on the junction box (if equipped). The button requires resetting before the engine will start. Rotate the button in the direction of the arrow on the button's face.
Control Panel Emergency Stop Button.If equipped with a control panel, press the emergency stop button for an emergency stop. The ECS must be reset before resuming operation. Move the ECS to the OFF/RESET position. The ECS can also be used to shut the engine off in an emergency. Move the ECS to the OFF/RESET position. The engine will immediately shut off.Manual Stop Procedure
There may be several ways to shut off your engine. Make sure the shutoff procedures are understood. Use the following general guidelines for stopping the engine.Generator Set Engines
If the ECS is in the AUTO position and the remote contact opens, the engine will run for a pre-programmed cool down period. This will only occur if the cool down mode is used. If the cool down mode is not used, the engine will shut off immediately.1. Open the main electrical circuit breaker to remove the load.2. The engine should be run for a cool down period before being shut off. This can be accomplished with the COOLDOWN STOP function, or the operator can control the cool down and shut off.To use the COOLDOWN/STOP function, turn the ECS to the COOLDOWN/STOP position. The engine will operate for a pre-programmed time period. The timer will activate the fuel shutoff after the cool down period.Alternatively, after removing the load, allow the engine to run at rated speed for one to two minutes. Reduce the speed 1/2 of rated speed for one to two minutes. Reduce the speed to low idle for one to two minutes. Turn the ECS to the OFF/RESET position, and the engine will immediately shut off.Industrial Engines
1. Disengage any driven equipment or remove the load from engine.2. Allow the engine to run at rated speed for one to two minutes.3. Reduce the engine speed to 1/2 rated speed for one to two minutes.4. Reduce the engine speed to low idle for one to two minutes.5. Shut the engine off by turning the START/STOP (ignition) switch to the STOP or OFF position.Alternatively, if equipped with a Mechanical Governor Control, move the control to the FUEL OFF position. Hold the control at the FUEL OFF position until the engine stops.After Stopping the Engine
* Check the crankcase oil level. Maintain the oil level between the ADD and FULL marks on the dipstick.* Repair any leaks, perform minor adjustments, tighten loose bolts, etc.* Note the service hour meter reading. Perform periodic maintenance as instructed in the Maintenance Schedule.* Fill the fuel tank to prevent accumulation of moisture in the fuel. Do not overfill.
Only use antifreeze/coolant mixtures recommended in the Cooling System Specifications of this manual. Failure to do so can cause engine damage.
* Allow the radiator and engine jacket water system to cool. Check the coolant level. Maintain the cooling system to 13 mm (1/2 inch) from bottom of the fill pipe.If freezing temperatures are expected, check the coolant for proper antifreeze protection. The cooling system must be protected against freezing to the lowest expected ambient (outside) temperature. Add the proper coolant and water mixture if necessary.