Jet BDB-919 Operating Instructions And Parts Manual

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Contents

127.5 TailstockThe tailstock (Figure 9) slides on a V-way and canbe clamped at any location. The tailstock has aheavy duty spindle with a Morse taper No.2 socketand a graduated scale. The spindle can be clampedat any location with a clamping lever. The spindle ismoved with a handwheel at the end of the tailstock.7.6 Lead screwThe lead screw (Figure 10) is mounted on the frontof the machine bed. It is connected to the gearbox atthe left for automatic feed and is supported by abearing on both ends. The nut and setscrew on theright end are designed to take up play on theleadscrew.7.7 Gear boxThe gearbox (Figure 11) is made from high qualitycast iron and is mounted on the left side of themachine bed. The motor drives through handlechangeable speeds. Always raise idler (Figure 4) tothe disengaged position when changing speeds.7.8 Drive and electrical equipmentThe main drive is provided by a single phase, A.C.motor mounted on the rear of the lathe bed.The forward-reverse switch, emergency stop switchand power light (A, Figure 11) are mounted on thefront of the electrical box. The motor condenser isalso contained in this box.Figure 9Figure 10Figure 11