Brother International BES-1240BC Instruction Manual - English - Page 234

Chapter 9 Maintenance 3-3. Lower shaft module 5 mm notch 35 mm 5 mm 1. Remove the peripheral parts so that the top of the case cover of the lower shaft can be seen. 2. Remove the tape covering the notch if the lower shaft's case cover is notched. When there is no notch, make one with a knife. (Note) Be careful not to make a deep notch to avoid cutting the harness on the rear of the lower shaft's case cover. 3. Place the cover so that the notch is on the top as shown in the illustration to the left. Coil spring Section to which grease is applied Coupling hub F 4. Evenly apply the supplied grease tank 30 (white) when the coil spring is engaged with the edge of the coupling hub F. (Note) Replace the lower shaft module if the coil spring is not engaged with the edge j of the coupling hub F, but is only displaced. 5. Apply the grease between each coil spring while setting up the supplied driver between coil springs. (Note) Be careful not to get any grease on the PCB or the encoder. 6. Turn the needle gap adjusting screw to let grease conform to the coil springs. 232 BES-940BC • BES-1240BC