SEAL AS 3G3259 - Caterpillar

Engine exhaust contains products of combustion which may be harmful to your health. Always start and operate the engine in a well ventilated area and, if in an enclosed area, vent the exhaust to the outside.
For initial start-up of a new or rebuilt engine, and for start-up of an engine that has been serviced, make provision to shut the engine off should an overspeed occur. This may be accomplished by shutting off the air and/or fuel supply to the engine.
Do not start the engine or move any of the controls if there is a "DO NOT OPERATE" warning tag or similar warning tag attached to the start switch or to the controls.Ensure that no one will be endangered before the engine is started and when the engine is started.Perform the procedures that are described in this Operation and Maintenance Manual, "Before Starting Engine" topic (Operation Section).
Ensure that the driven equipment is disengaged. Note: Two typical control panels are illustrated. If the engine is equipped with a different control panel, follow the instructions that are provided by the OEM of the control panel.
Illustration 1 g00539489
Marine Engine Control Panel
(1) "OFF/RESET, LOCAL, and REMOTE" switch
(2) "PRELUBE/START" switch
(3) "FUEL ON/OFF" switch
(4) "PRELUBE" indicator
Illustration 2 g00539488
Start/Stop control panel
(1) "OFF/RESET, LOCAL, and REMOTE" switch
(2) "PRELUBE/START" switch
(3) "FUEL ON/OFF" switch
(4) "PRELUBE" indicator
Turn "OFF/RESET, LOCAL, and REMOTE" switch (1) to the "LOCAL" position.
The engine must be prelubed before the crankshaft is rotated. Damage can result if the crankshaft is rotated on dry bearing surfaces.
Turn "PRELUBE/START" switch (2) to the "PRELUBE" position. Allow the prelube pump to operate.
Turn "FUEL ON/OFF" switch (3) to the "ON" position.
Illustration 3 g00275016
Fuel priming pump
Turn the handle of the fuel priming pump clockwise in order to prime the fuel system. Turn the handle until a resistance to the fuel flow is felt. If the engine is equipped with an electric fuel priming pump, activate the electric fuel priming pump. Operate the electric fuel priming pump until fuel pressure is indicated on the fuel pressure gauge.
When "PRELUBE" indicator lamp (4) illuminates, start the engine at low idle rpm with no load. Turn "PRELUBE/START" switch (2) to the "START" position. When 180 to 200 rpm is achieved, release the "PRELUBE/START" switch. The starting motors will disengage when the engine reaches 170 rpm. Note: If the engine does not start after ten seconds, turn the "FUEL ON/OFF" switch to the "OFF"position. Purge the cylinders. See this Operation and Maintenance Manual, "Before Starting Engine" topic (Operation Section).
Immediately after engine start-up, ensure that oil pressure and fuel pressure are indicated on the gauges. Allow the engine to idle for three to five minutes. The engine speed should stabilize at low idle rpm. Check all of the pressure gauges. Inspect the engine for leaks and listen for unusual noises. When all systems are normal, the rpm may be increased. Ensure that the oil pressure and the fuel pressure are in the normal ranges. After the engine has started and the warm-up is complete, the engine can be operated at low rpm