Tweco 51 with SL100SV CutMaster - Manual (Page 111)

Manual 0-4640 5-47 SERVICE
5
5.12 Right Side Internal Parts Replacement
A. Fan (M1) Replacement
1. Remove the power supply cover.
2. Remove the two screws securing the Fan to the Fan Shroud and let the Fan drop down.
3. Turn the Fan slightly and slide the Fan out, left side first.
4. Carefully remove the two wiring connectors from the terminals on the Fan Assembly.
5. Install the replacement Fan Assembly as follows:
a. Position Fan with the label facing inward and the Fan terminals facing bottom right.
b. Connect the two wire connectors to the two Fan terminals.
c. Slide the right end of the Fan in through the Shroud first, then the left.
NOTE
Only two screws are needed to attach the Fan to the Shroud and they can be installed in any two holes provided
they are opposite each other. For grounding purposes, one of those screws must be installed with a star washer.
d. Line up the Fan holes with the screw holes in the Fan Shroud then attach the Fan by installing two screws in opposite
corners.
B. Pilot PC Board Replacement
The Pilot PC Board mounts to the Power Supply center chassis. Refer to Pilot Board Layout in the Appendix.
1. Remove the power supply cover.
2. Label and disconnect wires from Pilot PC Board terminals E58 and E62. Disconnect the wire harness from receptacle J28.
3. Remove the hardware securing the Pilot PC Board to the power supply center chassis. Remove the Pilot PC Board.
4. Position the replacement Pilot PC Board against the standoffs fastened to the center chassis. Note that the Pilot PC Board
mounts with its printed text upside down. Fasten the Pilot Board to the standoffs with the hardware removed previously.
Torque the hardware to 18 in-lbs (2.04 Nm).
5. Reconnect the wires to the Pilot PC Board. Wire #58 connects to terminal E58; wire #62 connects to terminal E62. Ensure
that the wire harness connector is fully seated in receptacle J28.
6. Reinstall the power supply cover.