Section TOC
Master TOC
|
| TROUBLESHOOTING & REPAIR |
INPUT CONTACTOR REMOVAL AND REPLACEMENT (CONTINUED)
Return to
Return to Section TOC
Return to Section TOC
Return to
Return to Master TOC
Return to Master TOC
7.Using the 17 mm wrench, remove the nuts from the input contactor terminal closest to the machine front. Label the leads and note their placement: bottom nut (not removed), lead #X1A, Lead #X1, lead #BP5.
NOTE: The top nut has grooves on the side that faces up.
8.Using the 17 mm wrench, remove the nuts from the other input contactor terminal. Bottom nut (not removed), copper contac- tor strap, center nut, lead #331, top nut.
NOTE: The top nut has grooves on the side that faces up.
9.With the 3/8" socket wrench, remove the two bolts and nylon insulators holding the input contactor to the input diode heat sink.
NOTE: The mylar insulation sheet fits between the nylon insulators at replacement.
10.Using the 3/8" socket wrench, remove the two screws holding the input contactor to the machine base.
11.Carefully remove the input contactor.
REPLACEMENT PROCEDURE
1.Set the input contactor onto the machine base and install two 3/8" screws in the base mounting holes.
2.Install the two sets of 3/8" bolts and nylon insulators, along with the mylar insulation sheet, to the input diode heat sink. The mylar sheet fits between the nylon insula- tors under the mounting bracket.
3.Install the copper contactor strap and lead #331 to the input contactor rear terminal. See Figure F.10.
4.Install leads #X1A, X1, and #BP5 to the input contactor front terminal. See Figure F.10. Be sure the top nut on each terminal is the grooved nut, with the grooves facing up.
5.Connect leads #330 and #303A at their in- line connectors.
6.Replace any cable ties cut at disassembly.
7.Perform the Case Front Assembly Replacement procedure.
8.Perform the Case Cover Assembly Replacement procedure.
Return to Section TOC
Return to Master TOC
