Appendix B68 Power Xpert Solar 1500/1670 kW Inverter MN141001EN—October 2014 www.eaton.comAppendix BFlex Bus Kit: Throat ConnectionContentsEach 84-37413-1 kit will contain the following;1. Top cover (has lifting handles), 1 pc.2. Bottom cover, 1 pc.3. 3/8 inch hardware (SS bolts, nuts, flat and lock washers)for cover assembly, 32 pcs.4. Flex-bus jumpers, 6 pcs.5. 1/2 inch hardware (Gr5 bolts, lock-nuts, flat and Bellevillewashers) for Bus assembly, 288 pcs.6. This documentInstructionsAssemble as follows;1. Prepare each mating bus face with Penetrox “E” orsuitable equivalent for copper connections. DO NOT usePenetrox “A” or similar compounds made for Al to Al orAl to Cu connections.2. Place two Flex-bus bars on each side of one phase(3 places) of the unit output/ transformer LV inputbus stubs.3. Bolt assembly direction: 1/2 inch Bolt, 2 Bellevillewashers (in parallel), flat washer, bus assembly, flatwasher, 1/2 inch lock nut.4. Torque 1/2 inch bolt assemblies to 50–60 ft/lbs(68–81 Nm). DO NOT OVER-TIGHTEN!5. Place top cover over throat assembly, attach bottomcover with 3/8-16 x 3/4 inch lg. SS bolts and washers(4 places, each side) and torque to 6 ft/lbs (8 Nm).DO NOT OVER-TIGHTEN!6. Secure cover assembly to unit and transformer throatapertures with 3/8-16 x 2 inch lg. SS bolts and washers(4 places, underneath each end) and torque to 6 ft/lbs (8Nm). Tighten jam nut at each location to secureassembly. DO NOT OVER-TIGHTEN!