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TROUBLESHOOTING & REPAIR
IGBT MODULE REMOVAL
AND REPLACEMENT (continued)
FIGURE F.26 – STT PLACED ON ITS RIGHT SIDE
MOUNTING
BOLTS (5)
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7.Carefully lift and tilt the Invertec STT machine onto its right side. See Figure F.26.
8.Using the 7/16" wrench, remove the five bolts holding the lower tray assembly to the case bottom.
9.Carefully slide out and support the lower tray assembly.
10.Using the needle nose pliers, remove the strain relief holding the J22 lead harness to the case bottom.
11.Using the 1/2" wrench, remove the IGBT cable from the negative output terminal.
12.Carefully remove the lower tray assembly clear from the machine.
13.Remove the rubber RTV coating from the IGBT module.
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