Nantong QN6004

Kombinasyong lathe / drill / mill / shaper

The QN6004 universal machine tool combines a lathe, a drill and vertical mill, a horizontal mill and a shaper on one bed for ship and field workshops. Each function works separately with a safety interlock between the cutting and shaping drives and an overload device in the apron. The manual covers specifications, construction, lifting, installation and trial run, lubrication, bearings list, operation of each function, maintenance, breakdown and repair, wearing parts and spare parts.

Mga maintenance procedure

Changing over to planing (shaping)

1. With the motor stopped, turn knob B to the left: the safety interlock locks the knee and engages the shaping gears. p. 33
2. Select ram speed with knob A (25, 35 or 50 strokes/min) and set the stroke at the clamp behind the column. p. 33
3. After planing, turn knob B back to the right and reset the interlock; never move knob B with the motor running. p. 33

Spindle bearing play adjustment

1. Remove the headstock cover and free the thrust ring tab from nut 2. p. 31
2. Tighten nut 2 to reduce play (loosen to increase), then refit the tab. Factory set — adjust only when needed. p. 31

Mga sira at ang dapat gawin

Workpiece turns oval or ends run out; chatter when notchingSpindle bearing clearance too large or bearings wornIrregular ripples on finished surfaceWorn spindle roller bearing raceExcessive axial play of spindleThrust bearing clearanceTailstock centre unsteadyWorn sleeve or hole

Technical specifications

Swing over bed	420 mm	p. 1
Drilling capacity	38 mm	p. 1
Ram stroke (shaper)	275 mm, 25 / 35 / 50 strokes per minute	p. 33
Working table	200 × 600 mm	p. 1
Shaping head angle	−20° to +20°, carrier travel 50 mm	p. 33

Pinagmulan: manual ng gumawa na “EM-18 -1 UNIVERSAL MACHINE TOOL”, 55 pahina. Ang numero ng pahina ay ayon sa orihinal. Suriin ang manual sa barko bago magtrabaho.

Awtomatikong isinalin ang pahinang ito. Ang part number, code at pahina ay ayon sa orihinal.