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6D3-18 STARTING AND CHARGING SYSTEM Reassembly Generator (a) Press new bearing onto slipring end of the rotor taking care to aplly the force to the bearing inner race only, otherwise the bearing will be noisy and it's life will be shortened. (b) Fit a new bearing to the drive end housing, fit the bearing plate, and four retaining screws, press the rotor into the bearing, using a support tool to take the thrust against the bearing inner. The support is fitted from the pulley side of the bearing. In this way the thrust is not taken by the drive end housing. (c) To fit pulley, mount an 8mm Allen key in the vice with the short end upwards, place a 24mm ring spanner on the shaft nut, position the internal hexagon of the rotor shaft onto the Allen key, tighten the nut to the required torque(See torque chart) (d) Inspect the bearing support ring for signs of damage, if in doubt replace the ring by pressing it into the housing by hand, do not use excessive force. (e) To refit the rectifier, fit new mica washers to the positive heatsink B+ bolt and retaining screw each washer must have heatsink compound applied to both surfaces before fitting. Fit the three retaining screws to the rectifier then install into slipring end housing. Tighten the B+ bolt to the reuired torque. (f) To refit the stator, make sure the spigot surface are clean and free from damage, fit the stator into the slipring end housing noting the correct lead connection positioning. Fit the stator leads into the wire loops in the recrifier. Using a pair of pliers squeeze the loop to retain the stator lead prior to soldering. Repeat for each lead in turn, solder the leads into position using 60/40 resin cored solder. Make sure the leads will be clear of the internal fan when the rotor is assmebled into the stator. (g) Carefully install the rotor into the stator/slipring end housing assembly, noting the alignment of the housings and through bolt holes. Fit the through bolts making sure the stator is seated correctly, tighten the through bolts to the correct torque setting (uneven torque can produce magnetic noise levels above normal). (h) Fitting the regulator. Compress the brushes into the brush holder by hand, slip the regulator through the opening in the rear of the slipring end housing until the brushes come in contact with the slipring. Press the regulator towards the slipring until the holes are aligned then fit the retaining screws and tighten. |