Diagraph PA/4000, Service Manual, Page: 165 / 213

Technician’s Guide 2-31
2.3 REMOVAL AND REPLACEMENT
Section 2.3 discusses removal and replacement procedures for all main components of
the PA/4000. Section 2.3 is divided into the following sub-sections: Electrical Box
Assembly, Air Box Assembly, Main Power Box Assembly and Other. If you need to
replace a component that is not covered in any of these sections, refer to the appropriate
Engineering Drawing in Section 3 of this manual for more information.
2.3.1 ELECTRICAL BOX ASSEMBLY
OPENING THE ELECTRICAL BOX ASSEMBLY
See Engineering Drawing #6105-150 to further illustrate this procedure .
1. Turn PA/4000’s power switch to the OFF position. Shut off the air valve on the
filter assembly.
2. Disconnect all air and electrical connections.
3. Rotate the PA/4000 to a comfortable working position.
4. Open the electrical box assembly by loosening, then removing the two support
screws (5091-305) using a 5/16 inch Allen wrench.
5. The electrical box will swing open.
REPLACING THE PRODIGY PLUS BOARD
See Engineering Drawing #6105-150 to further illustrate this procedure .
1. Open the Electrical Box Assembly.
2. Rotate PA/4000 so the tamp applicator is facing you.
3. Remove the four rear panel support screws (5241-103) using a 3/64 Allen wrench.
4. Disconnect all cables from the Prodigy Plus board.
5. Remove the 2 elastic lock nuts (5307-102) using a 5/16 nutdriver and 5/64 Allen
wrench.
6. Hold the board gently by the capacitors. Pull slightly right, then remove.
Do not slide the board out until all cables are disconnected.
7. Reverse the previous steps to install the Prodigy Plus board.