Klutch 49656 Owner'S Manual Download Page 7

12 of 24

13 of 24

Mini Metal Lathe 7 x 12

OWNER’S MANUAL

Mini Metal Lathe 7 x 12

OWNER’S MANUAL

Operation

SIMPLE TURNING

Before starting the machine, as described above, it is imperative that the setup for the type of 

work to be carried out is fully checked.

The following notes are guidelines as to how to set up the lathe in order to carry out a simple 

turning operation.

1. ALWAYS plan your work. Have drawings or a plan on hand together with any measuring 

instruments you may require, such as micrometers, calipers, etc.

2. Select a cutting tool that will produce the desired cut and mount it, with as little over-hang as 

possible, securing it using three hex socket head screws. (Ideally, the over-hang should be 

approx., 6mm but not more than 8mm for a straight tool).

3.  It is IMPORTANT to ensure that the tip of the cutting tool is on the center line of the work, or 

very slightly below it. The tip should never be above the center line.

Where necessary shims should be used beneath the tool in order to achieve the correct height, 

or, if the tip is too high, the only recourse is to select another tool or grind down the tip.

To check that the tip is at the correct height, position the tool so that the tip is almost touching 

the point of the tailstock center. They should coincide. lf necessary make adjustments using 

shims grind down the cutting tip or select another tool.

4. When satisfied, mount the work, either in the chuck or on a faceplate, and if necessary, use 

the tailstock (9) center for additional support (if the work cannot be adequately secured by 

the chuck, or if it is a long piece, or of small diameter). Additionally, a ‘steady rest’ may be 

used.

If the tailstock will not be used, you may remove it completely by loosening off the securing nut 

at its base, and sliding it free of the bed.

5. Mark the surface of the work at the point where the cut is to end, i.e. the shoulder, using a 

scriber or similar means, and move the cross-slide (6) so that the cutting tool is directly 

opposite the mark, then wind in the cross-slide so that the tool touches the surface of the 

work.

6. While carrying out these maneuvers, rotate the chuck 

by hand to ensure that nothing will come into contact 

with it when turning takes place, i.e. there is adequate 

clearance between the cross-slide, tool post, or 

cutting tool, and the chuck.

7. When satisfied, retract the cutting tool and wind the 

cross-slide (6)away from the headstock (1), then wind 

the cutting tool up to the work, somewhere along the 

length to be cut, whilst rotating the work by hand, 

using the chuck.

Continue to advance the cutting tool slowly, until it just touches the surface. Record this 

position by zeroing the scale on the cross-slide, i.e. turn the moveable scale until the tool is a 

short distance from the right hand edge of the work. Wind in the cross-slide again one full 

until the zero marks again coincide.

IMPORTANT: 

If you go past the zero mark, back off again at least one half of a turn, then 

slowly bring the marks back together.

Whenever you use the scale as an indicator, to advance the cross-slide or compound slide, 

ALWAYS use this procedure to align the marks. This is to take into account backlash and 

other clearances in the gearing, slides, etc.

8. Continue to turn the handle (18) an amount equivalent to your desired depth of cut.

NOTE: 

We recommend that for rough cutting, you do not exceed 0.010"(0.25mm) as your 

depth of cut.

9. The setup is now complete to begin your cutting operation, but before starting, check that 

the position of the Clutch (24) is Off.

10. Switch the machine on and slowly feed the cutting tool into the work using the manual feed 

handle. Proceed until you reach the previously marked line on the work, and then retract the 

tool one or two complete turns on the Cross-slide feed handle (16).

11. Wind the cross-slide back to the beginning then wind the tool the same number of turns 

“in”, plus the depth of desired cut, and proceed to cut once more.

NOTE: 

This procedure describes general, rough cutting. For other types of cuts-finishing, 

cutting shoulders etc., consult a suitable handbook.

SIMPLE TURNING WITH POWER FEED

Simple turning with power feed has the same basic setup is used as described above, except 

that, before starting, the Leadscrew F/N/R lever (27) is set to the ‘Forward’ position and the 

Automatic feed lever (15) is operated in order to drive the cross-slide.

As mentioned previously, the rotational speed of the leadscrew, and hence the rate of feed of 

the tool, is dependent upon the gear configuration of the gear train.

•  The feed rate for simple turning is considerably less than that used for screw cutting.

•  The lathe is factory configured for simple turning, however if you have been screw cutting, 

always remember to reset the gear configuration to that for simple turning.

•  Please refer to the chart on a previous page that shows the gear configuration, and the 

explanation of how to change the gears.

1. Taking all precautions previously mentioned, position the cutting tool a short distance to the 

right of the workpiece with the appropriate depth of cut set on the cross-slide. 

2. Ensure the leadscrew F/N/R lever (27) is set to ‘Forward’ and select ‘Forward’ on the 

Forward/Off/Reverse switch (24) on the main control panel. 

3. Switch on the lathe.

4. Turn the variable speed control knob (23) to achieve the desired spindle speed with your right 

hand and push down on the automatic feed lever (15) until the nut becomes firmly engaged 

with the leadscrew.

IMPORTANT: Your left hand should always be free in order to hit the emergency stop (25) 

should it become necessary.

5. Carefully observe the movement of the tool and as it approaches the mark on the surface, 

denoting the end of cut, pull the automatic feed lever (15) UP sharply and ensure it stays UP. 

If a degree of accuracy is required, it is recommended that you finish the cut by hand.

NOTE: If you require a shoulder with perfectly clean corners, then you need to use an 

appropriately shaped tool.

6. Retract the tool one or two complete turns on the cross-slide feed (6), then wind it so that the 

tool is at the start point once again. Advance the tool the same number of turns, plus the 

depth of cut, and when read, push down the automatic feed lever (15) and proceed to take 

another cut.

BEVEL CUTTING

Bevel cutting involves the use of the compound slide (7), which is mounted on the cross-slide 

(6) and set at right angles to it for all normal cutting operations. This is indicated by the zero 

mark, on the scale, (B, Fig. 8), lining up with the mark etched on the body of the cross-slide. 

To set the compound slide so that the cutting tool will cut a bevel, first retract the slide, until the 

two hex, socket head screws (A) are revealed as shown in Fig. 9. 

Summary of Contents for 49656

Page 1: ...Contents Intended Use 1 Technical Specifications 2 Important Safety Information 2 Specific Operation Warnings 4 Grounding 5 Extension Cords 5 Assembly 6 Main Parts 7 Before Each Use 9 Operating Instru...

Page 2: ...way from the work area while operating the tool Do not allow children to handle the mini metal lathe Be aware of all power lines electrical circuits water pipes and other mechanical hazards in your wo...

Page 3: ...of the machine Wear the proper safety gear including ANSI Z87 1 approved eye protection Moving Parts Hazard Keep hands clear of spindle chuck and work piece Remove keys and adjusting wrenches before s...

Page 4: ...e contents to ensure all parts are present If any pieces are missing call the distributor at the number in the Replacement Parts section of this manual UNPACKING When unpacking the lathe check that al...

Page 5: ...y be moved along the bed to any desired position and secured in position by two screws on the front of the tailstock to lock the tailstock wedge The tailstock spindle includes an internal No 2Morse ta...

Page 6: ...ross slide and compound slide adjustments are correctly set and that there is no sloppiness of action Any sloppiness will seriously effect on the quality of the work It is vital that there is as littl...

Page 7: ...le 18 an amount equivalent to your desired depth of cut NOTE We recommend that for rough cutting you do not exceed 0 010 0 25mm as your depth of cut 9 The setup is now complete to begin your cutting o...

Page 8: ...tch to OFF but do not disengage the auto feed lever 7 Retract the tool using the cross slide feed handle 18 noting the exact position on the scale and the exact number of turns this will be used in st...

Page 9: ...17 of 24 16 of 24 Mini Metal Lathe 7 x 12 OWNER S MANUAL Mini Metal Lathe 7 x 12 OWNER S MANUAL Parts Diagram Wiring Diagram 1 220 240V 50HZ Wiring Diagram 2 100 120V 60HZ...

Page 10: ...Gear 12T 20T Parallel Key M4 45 H L Gear Shaft Pulley Retaining Ring M10 Timing Belt Shifting Fork Shifting Arm Shifting Knob Shifting Lever Shifting Grip Handle Handle Mount Compressive Spring Indic...

Page 11: ...bel Gear 30T Gear 35T Gear 40T Gear 45T Gear 50T Gear 55T Gear 57T Gear 60T Gear 65T Cover Key Clamp Block Check Ring 9 Flat Head Screw M5 10 Protector Phillips Head Screw M5 10 Screw M6 25 Emergency...

Page 12: ...ill Cross slide compound slide or carriage feed has sloppy operation Cross slide compound slide or carriage feed handwheel is hard to move Cutting tool or machine components vibrate excessively during...

Page 13: ...e distributor reserves the rights to make design changes and or improvements to product lines and manuals without notice Limited Warranty Northern Tool and Equipment Company Inc We or Us warrants to t...

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