FUEL PUMP A 1N4390 - Caterpillar

Never connect or disconnect the magnet unless the engine is shut down and the main switch for the generator is in the OFF position.Failure to follow this procedure may result in personal injury or death.
The grapple or the magnet can swing in all directions. Personal injury can result if the attachment swings into the cab or a person in the work area.
Before making any adjustments to the generator the engine must be shut off and the main disconnect switch on the controller must be in the off position. Personal injury can occur.Close all controller panel doors before the generator is started. Personal injury can occur.Never handle the leads to the magnet unless the generator is stopped and the main disconnect switch on the controller is in the off position. Personal injury can occur.
Failure to comply to the rated load can cause personal injury or work tool damage.Review the rated load of a particular work tool before performing any operation. Make adjustments to the rated load as necessary for non standard configurations.
To prevent injury, do not exceed the rated load capacity of the machine. If the machine is not on level ground, load capacities will vary.
Know the maximum height and the maximum reach of your machine. Serious injury or death by electrocution can occur if the machine or the work tools are not kept a safe distance from electrical power lines. Keep a distance of at least 3000 mm (118 inch) plus an additional 10 mm (0.4 inch) for each 1000 volts over 50000 volts.
Do not leave the controls unattended while a load is suspended. No person shall be permitted to stand or pass under a suspended load or work tool. A suspended load or work tool may fall causing injury or death.
Never operate a magnet with a direct electrical short to case. Any person making contact with such a magnet could receive an electrical shock, resulting in injury or death.
Note: All personnel should stay clear of the magnet during operation of the magnet.Do not exceed the rated duty cycle of the magnet. Exceeding the rated duty cycle reduces lifting capacity because of excessive heat buildup in the magnet.The following formula defines the duty cycle:
Table 1
Magnet ON (duration)     ×     100    
Magnet OFF (duration)     +     Magnet ON (duration)    The answer is expressed as a percent with a maximum time of ten minutes (duration) for magnet ON in order to avoid overheating the magnet. To maximize the efficiency of your magnet, always turn off the magnet when the magnet is not active. Caterpillar only recommends the use of magnets with a duty cycle of 75 percent with Caterpillar machines.The generator supplies power to the magnet when the grapple/magnet switch on the right console is turned on.Refer to Operation and Maintenance Manual, "Operator Control" for information on the grapple/magnet switch. Refer to Operation and Maintenance Manual, "Joystick Control" for information about using the joystick controls for the magnet.Generator for the Magnet
The hydraulic motor drives the generator