LINE AS-FUEL INJECTION 4W6313 - Caterpillar

Illustration 1 g00809802
(1) 24 VDC Power Supply 1 (2) 24 VDC Power Supply 2Shutdown Procedure for the Single Module System (SMS)
If 24 VDC is still available, the service person should perform a "Control X" on the PC in order to brake the rotor. This will ensure that there is no power in the system upon shutdown.
Note: When this procedure is performed, do not leave the system shut down for an extended period of time. The rotor is spinning on the bottom bearing. This could cause unnecessary bearing wear. When the flywheel is spinning, the following components are energized: the bus, armature leads and fuses.
Cycle the keyswitch from Online to Bypass position.
Open the AC circuit breakers for the input to the system.
Open the AC circuit breaker for the output to the system.
Ensure that the flywheel is at zero RPM.
Allow the capacitor banks to bleed down for approximately 5 minutes.Removal of the Power Supply
Illustration 2 g00811061
Open the door to the cabinet for the MMU or SMS in order to gain access to the door for the controller board (3) .
Remove 3 screws (4) that secure the door for the controller board.
Illustration 3 g00811076
Remove the lower hose clamp (8) from the 24 VDC power supply module (9) .
Remove the upper hose clamp (6) from the 24 VDC power supply module and remove the hose (7) .
Remove 2 screws from the front of the power supply vent adapter (10) .
Loosen the screw that is on the back of the power supply vent adapter (10) .Note: Do not remove the screw.
Remove the power supply vent adapter (10) .
Illustration 4 g00811094
Label all the wires on the static switch interface board (11) .
Disconnect the connector for the 24 VDC power supply from "J7" terminal (18) that is located at the rear of the board.Note: Terminal "J7" (18) can not be seen from the front of the unit.
Disconnect the "APC" input/output connector from terminal "J1" (15) that is located at the rear of the board.
Disconnect the External Thermistor connector from the terminal "J9" that is located at the rear of the board.
Disconnect the "A" connector from terminal "J8" (12) .
Disconnect the "A" connector from terminal "J6" (13) .
Disconnect the "B" connector from terminal "J5" (14) .
Disconnect the "B" connector from terminal "J4" (16) .
Disconnect the "C" connector from terminal "J3" (17) .
Disconnect the "C" connector from terminal "J2" (19) .
Remove the 4 mounting screws and remove the board.
Label the power cables on the terminals for the static switch input for the following phases: A, B and C. Label the power cables on the terminals for the static switch output for the following phases: A, B and C.
Disconnect the power cables from each input terminal. Disconnect the power cables from each output terminal. Power cables must be disconnected from the following phases: A, B and C.
Loosen the two mounting bolts at the top of the static switch module.Note: Do not remove the two mounting bolts.
Remove the static switch.
Illustration 5 g00811130
Label all the wires on the assemblies for the power supply.
Disconnect the red