TANK GP-FUEL 4E2324 - Caterpillar

NEGATIVE GROUND 32V-50A SYSTEM (DELCO-REMY)
32V SYSTEM-50A ALTERNATOR AND 32V PRELUBE PUMP MOTORInsulated Ground Systems
This system is most often used in applications where radio interference is undesirable or where conditions are such that grounded components would corrode from electrolysis.
INSULATED 32V-50A SYSTEM WITH GLOW PLUGS (DELCO-REMY)Safety Shutoff Control
A combined overspeed and low oil pressure safety shutoff is provided for industrial engines. Marine engines are equipped with reversal protection in addition to overspeed. The overspeed and reversal protection controls do not have protection for low oil pressure.Safety shutoff (1) is mounted in the V of the engine at the front of the fuel pump housing. The overspeed portion is driven by the fuel injection pump camshaft. In cold weather operation, it may be necessary to push the reset button (4) while cranking the diesel engine to prevent activating the shutoff control. This is necessary as the oil pressure will not increase to the operating range fast enough because of the longer cranking period needed under these conditions.Under conditions of normal operation, pressure of lubricating oil will increase to the operating range before the follower has moved to the limit of travel and activates the release latch and rod.Engine lubricating oil pressure is used to actuate the shutoff control. Line (3) provides for a connection of oil pressure to a water temperature shutoff control valve. Line (2) supplies oil pressure to the shutoff control.
SAFETY SHUTOFF CONTROL (FUEL SHUTOFF ARRANGEMENT)
1. Safety shutoff control. 2. Pressure oil line to shutoff control. 3. Pressure oil connection to water temperature shutoff. 4. Reset button. 5. Emergency manual shutoff button. 6. Fuel rack shutoff cable.Emergency manual shutoff button (5) works in conjunction with the overspeed shutoff and provides the operator with an emergency shutoff.Reset button (4) is used to reset the control after the engine has been stopped by the control. It is usually not necessary to reset the control after a normal shutdown.Overspeed Shutoff
Should an overspeeding condition occur, the overspeed shutoff control, located in the shutoff control housing, will actuate the release rod and then the fuel rack shutoff.Overspeed carrier assembly (1) is driven by the fuel pump camshaft. Within the carrier flange is rotating weight (2), held toward the center of the carrier shaft by an adjusting screw, spring and nut.As engine rpm increases, the centrifugal force acting on the weight increases, and the weight moves out of the carrier flange. This movement of the weight continues until the spring force (tending to hold the weight in) is equal to the centrifugal force (tending to throw the weight out).
OVERSPEED CONTROL
1. Carrier assembly. 2. Rotating weight. 3. Release lever. 4. Release rod.When the engine overspeeds, the increased centrifugal force of the weight moves the weight out of the rotating carrier flange. The weight now unlatches lever (3) and spring force moves rod (4) to actuate the shutoff linkage which stops the engine.Water Temperature Shutoff Control Valve Operation
The water temperature shutoff in itself is a control valve for the oil pressure shutoff. It is actually the oil