6” x 10”* Variable SpeedMicro Lathe

Instruction Manual

Made in China for

340 Snyder AvenueBerkeley Heights, NJ 07922

For technical assistance, call 908-464-1094 Monday thru Friday, 1pm to 5pm ET©Micro-Mark

MM120711

Please read and understand all instructions before using this tool.

Note: These instructions will show you how to assemble this machine, work its controls and maintain it for long life.

It is not intended as an educational course on how to make parts using a lathe.

#85181

*Nominal size

Specifications

Feature and Legend

1. The Headstock

2. The Running Gear

3. The Tailstock

4. The Saddle and the Cross-Slide

Unpacking and Preparing for Use

Starting Procedure

Operation

Maintenance

Settings and Adjustments

Accessories

Parts List

Parts Diagram

Wiring Diagram

Packing List

CONTENTS

Important Safety Instruction

2

1. When using electric tools, machines or equipment, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and personal injury.2. Keep work area clean. Cluttered areas invite injuries.3. Consider work area conditions. Do not use machines or power tools in damp, wet, or poorly lit locations, Do not expose equipment to rain. eep work area well lit. Do not use tools in the presence of flammable gases or liquids.4. Keep children away from the work area.5. Guard against electric shock. Prevent body contact with grounded surfaces such as pipes, radiators and ranges.6. Stay alert. Never operate if you are tired.7. Do not operate the product if under the influence of alcohol or drugs. Read warning labels on prescriptions to determine if your judgment or reflexes might be impaired.8. Do not wear loose clothing or jewelry as they can be caught in moving parts.9. Wear restrictive hair covering to contain long hair.10. Wear eye and ear protection.11. Keep proper footing and balance at all times.12. Do not reach over or across running machines.

Before operations1. Be sure the switch is OFF when not in use and before plugging tool into power outlet.2. Do not attempt to use inappropriate attachments in an attempt to exceed the tool's capacity. Approved accessories are available from Micro-Mark.3. Check for damaged parts before using any tool. Any part that appears damaged should be carefully checked to determine that it will operate properly and perform its intended function.4. Check for alignment and binding of all moving parts, broken parts, mounting fixtures, and any other condition that may affect proper operation. Any part that is damaged should be properly repaired or replaced by a qualified technician.5. Do not use the tool if any switch does not operate properly.

Operation 1. Never force the tool or attachment to do the work of a larger industrial tool. lt is designed to do the job better and more safely at the rate for which it was intended.2. Do not carry the tool by its power cord.3. Always unplug the cord by the plug. Never yank the cord out of the wall.4. Always turn off the machine before unplugging.IF THERE IS ANY QUESTION ABOUT A CONDITION BEING SAFE OR UNSAFE,DO NOT OPERATE THE TOOL!

Grounding InstructionsThis machine has a three prong plug -- the third prong is the ground. Plug this cord into athree-prong receptacle only. Do not attempt to defeat the protection the ground wire provides bycutting off the round prong. Cutting off the ground will result in a safety hazard and void thewarranty.DO NOT MODIFY THE PLUG IN ANY WAY. IF YOU HAVE ANY DOUBT, CALL AQUALIFIED ELECTRICIAN. 3

IMPORATANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS AND WARNINGS BEFORE USING THIS TOOLOperatorPLEASE REMEMBER:

1. Clutch (for changing manual & auto feeding) 2. Forward / Off / Reverse Switch 3. Emergency Stop Switch 4. Changing gear box cover 5. Variable Speed Control Knob 6. Chuck and Chuck Cover 7. DC Motor 8. Rear Splash Guard 9. Tool Rest 10. SaddIe and Cross Slide11. Tailstock Quill Lock Handle 12. Tailstock Casting13. Leadscrew and Handwheel 14. Bed Way15. Apron 16. Fuse Box17. Power Indicator Lamp (Green) 18. Reset Indicator Lamp (Yellow)

SPECIFCATIONS

Max. swing over bed 140 mm (51/2" )Max. Iength of workpiece 250 mm (10")Spindle hole taper MT2Cross slide travel 60 mm (23/8" )Hole of spindle 9 mm (3/8")Tailstock taper MT1Spindle speed (Variable speed) 100 - 2000rpm ±10%Screw threads Imperial 16, 18, 19, 20, 24 Motor output power 150WNet/Gross weight 22 / 26 kgs.

FEATURES

LEGEND

4

1 3 15 1424

1312111098675181716

1. THE HEADSTOCK

5

2. THE RUNNING GEAR

3. THE TAILSTOCK

4. THE SADDLE AND THE CROSS-SLIDE

UNPACKING & PREPARING FOR USE

With assistance, considering the weight of machine, o e t to a good solid surface orworkbench. Proceed to remove all traces of preservative with paraffin or good quality solvent,and lightly oil all machined surfaces.

Saddle, cross-slide and compound slide adjustments are all factory set to ensure smoothmovement in both directions. lf, however, the adjustments have been upset during transit,indicated by stiff or erratic movement, refer to settings and adjustments for the methods ofadjustment.

All hex keys and spanners necessary to carry out various adjustments are supplied, togetherwith a chuck key for the 3-jaw chuck and a spare fuse. The fuse holder is located on the maincontrol panel.The three external jaw for the 3-jaw self centering chuck can extend the capacity of the chuck.

The motor provides direct drive to the spindle via an internal tooth-type belt. Spindle speed is variable, and is regulated by the Speed Control Knob (5). Located on the main control panel.

The spindle is provided with an internal No. 2 Morse taper to accommodate a center for usewith a face plate or turning clamp.

The 3-jaw Self Centering Chuck (6) is mounted on the spindle flange. To remove the chuck,simply remove the three securing nuts to rear of the flange allowing it to be pulled free togetherwith three mounting studs.Note: The Chuck has a protection cover (6). Opening the cover causes main power of thelathe to be switched off. Keep the cover closed to operate.

The Running Gear, ls protected by a cover (4), open the cover (4) of the gear box on the left side of the machine, and select the gear (see 'Accessories') of the correct size according to the desiredfeeding rate or pitch size. lnstall the appropriate gear into the gearbox and connect it to theleadscrew. (Refer to the 'changing gear' label on the machine.)

Automatic feeding is enabled or disabled by control the clutch (1) on the main panel. Turn theClutch Handle (1) to the left (a hand ) for manual feeding. Turn the Clutch Handle (1) to the right (ascrew) for automatic feeding.

The Tailstock Casting (12), may be moved along the bed to any desired position and is secured inposition by two screw ( ront of the tailstock) w lock or loosen the wedge of the tailstock. The tailstock spindle carries an internal No. 1 Morse taper for use with the Center provided.

The saddle carries the Cross-Slide (10), onto which is mounted the Tool Rest (9) allowing intricateand delicate operations to be performed. lt may be driven by a leadscrew, ia a Drive Nut, toprovide automatic feed when the Clutch (1), at the right position, is operated.

On receipt, carefully unpack the lathe, inspect to ensure that no damage was suffered in transitand all parts are accounted for. Should any damage be apparent, or parts are missing, pleasecontact your dealer immediately and a e a i in car on or e carrier' in ec ion.

MOUNTING THE MACHINE

STARTING PROCEDURE

A. DURING INSTALLATION - INITIAL START

The machine should be mounted on a workbench ofsufficient height so that you do not need to bend yourback to perform normal operations.Ensure the location is adequately lit and that you willnot be working in your own shadow.We strongly recommend that the machine e boltedfirmly to a workbench, using the tapped holes to secure the feet to the machine. This is to provideadded stability and, consequently, additional safety.To do this, first drill three M6 clearance holes in aworktop, at the dimensions shown in the diagramopposite, and with appropriate length M6 bolts, orscrews, with flat washers (not supplied).

Taking all precautions previously stated, ensure t at the cross-slide is well away from the chuck, and the clutch for manual and auto feeding is in t e left position. Close the chuck' protecti ecover. Insert the electric plug into t e socket.

o ar e a e ir re ea e e er ency o i c A . en e ec or ard or e er e a de ired .

ina y ro a e e eed con ro o e de ired eed. Run t e a ne or a total 5 minutes, graduallyincreas n spindle speed to its maximum. Run for at least 2 minutes at this speed before stopping the machine and disconnecting from the main supply.

Check that all components are still secure and working freely and correctly.Check also to ensure the mountings are secure.

CAU ION:ALWAYS turn the machine OFF i e aria e eed S i c and e or ard e er eSwi c a e in o change any settings or make any adjustments.

6

B A

420mm

85m

m

B. STARTING UNDER NORMAL CONDITIONS1. Take all necessary precautions previously stated, and ensure the workpiece can rotate fully without obstruction.2. Put the manual & auto feeding Clutch to right or left side, depending upon whether or not auto feeding is required.

IMPORTANT: This should ALWAYS be a deliberate, conscious action.3. To prevent damage, the carriage drive screw clutch must be engaged with the motor off. To engage the clutch,

turn the clutch control knob (1) gently clockwise while, at the same time, rotating the lead screw hand wheel (13)until the clutch fully engages (you’ll feel this in the knob as it goes all the way “over”). Before starting the lathe,you’ll want to make sure there is plenty of clearance for the carriage to move unobstructed. The carriage drivemay be disengaged while the lathe is either running or stopped. To do so, rotate the control knob with a swift, firmmotion counterclockwise to the disengaged position. Remember to stop the lathe before attempting to re-engagethe carriage drive screw clutch.

4. Proceed to start the machine as described in Section A.5. If the machine is finished with or is to be left unattended, turn the F/O/R switch to the OFF position then

disconnect from the main supply.

ATTENTION: The power supply system of this machine has an automatic overload protective device. If cutting ordrilling too deep, the system will stop working, and a yellow lamp (C, on the main panel) will light. Just turn down theVariable Speed control knob (E) and move directional switch (A) to neutral and then turn on again. The system willwork again and the yellow lamp will go off automatically.

OPERATIONSIMPLE TURNINGBefore starting the machine, as described above, it is imperative that the setup for the type of work to be carried outis fully checked.The following notes are guidelines as to how to set up the lathe in order to carry out a simple turning operation.ALWAYS plan your work. Have drawings or a plan on hand together with any measuring instruments you may require, such as micrometers / verniers / calipers etc.Select a cutting tool that will produce the desired cut and mount in the tool rest, with as little overhang as possible,secure it using the hex socket head screws (ideally, the overhang should be approximately 6mm but not more than8mm for a straight tool).lt is IMPORTANT to ensure that the tip of the cutting tool is on the center line of the work, or very slightly below it. On no account should it 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 highor too low, you may find the rocker side useful, and the last recourse is to select another tool or grind down the tip.

To check the tip is at the correct height, position the tool so that the tip is almost touching the point of the tailstockcenter. They should coincide. If necessary make adjustments using shims or grind down the cutting tip or select another tool.

When satisfied, mount the work, either in the chuck or on a faceplate, and if necessary, use the tailstock 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, ‘Steady rest’ may be used.

If the tailstock is not to be used you may remove it completely by slackening off the securing screws at its base, andsliding it free of the bed.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 saddle so that the cutting tool is directly opposite the mark, then wind in the cross-slide so that the tooltouches the surface of the work.While carrying out these maneuvers, rotate the chuck by hand to ensure that nothing will come into contact with itwhen turning takes place, i.e. there is adequate clearance between the saddle, cross-slide, tool post or cutting tool,and the chuck.

7

When satisfied, retract the cutting tool and wind the saddle away from the headstock, then windthe cutting tool up to the work somewhere along the length to be cut while rotating the workby 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 wor . n in the cross-slideagain one full turn until the zero marks againcoincide.lMPORTANT: lf you go past the zero marks,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 andother clearances in the gearing and slides, etc.Continue to turn the handle 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

8

The setup is now complete to begin your cutting operation but before starting, check theposition of the Clutch for changing the manual & auto feeding set to left po t on.Switch the machine ON as described under Starting Procedure and slowly feed the cuttingtool into the work using the manual feed handle. Proceed until you reach the previously markedline on the work, then retract the tool one or two complete turns on t e ross-slide feed handle.Wind the saddle back to the beginning, then wind the tool the same number of turns in, plusthe depth of desired cut, and proceed to cut once more.NOTE: this describes the procedure for general, rough cutting. For other types of cuts, finishing, cutting shoulders etc., you should consult a suitable handbook.IMPORTANT:Your left hand should always be free in order to hit the emergency stopshould it become necessary.MAINTENANCEFor maximum performance, it is essential that the lathe is properly maintained.BEFORE USEAlways inspect before use. Any damage should be repaired and maladjustments rectified.Damage to machined surfaces should be repaired with an oil stone. Test by hand to ensuresmooth operation of all parts before use.lnject a few drops of oil nto the oilways at both leadscrew bearing (each end bracket once or twiceduring the day if used continuously. lt will be necessary to remove the geartrain cover in order to oil the left hand bearing.

l o nject a few drops nto the compound slide oilway, located on the slide top surface, betweenthe two hex socket head screws.AFTER USERemove all e r from the machine and thoroughly clean all surfaces. lf coolant has been used,ensure it has completely drained from the tray.Components should be dry, and all machined surfaces should be lightly oiled.Always remove cutting tools, and store in a safe place.MOTOR BRUSHESThe motor brushes may be changed by unscrewing the caps, at the upper en of the motor, beneath the headstock.

your depth of cut.

0510 45 40

Occasionally, it may be necessary to readjust various components in order to maintain optimumperformance. The adjustments that may be performed are as follows:

The cross-slide is mounted on a dovetail slide, as shown below. Between the sloping surfaces onone side of the dovetail, a ib strip is inserted, which may be tightened against the dovetail underthe influence of three adjuster, or ib screws, mounted along it len t .The ib screws are to be found on the right hand side of the slide, directly beneath the compoundslide handle. ln time, wear will occur on the mating surfaces resulting in a sloppiness of action.To adjust the ib strip, account for wear, and ensure the slide moves evenly and smoothly,proceed as follows:1. Loo en all lock nuts and screw in the ib screws evenly, i.e. use the same torque for each screw. The slide should be held firmly. Test by trying to turn the handle, but do not force it.2. Screw out each ib screw by one quarter of a turn only, and nu up the lock nuts.3. Test again, by turning the handle the movement should be even and smooth along its complete length.4. lf the movement is too slack, screw all adjusters in by one eighth of a turn, and re-try. Similarly, if the movement is too stiff, screw out the adjusters by one eighth of a turn until the correct adjustment is attained.5. Tighten all lock nuts, taking care to ensure you do not move the ib screws while doing so.6. When completed, retract the slide fully and apply oil to all mating surfaces and the feed screw thread, then wind the slide back to its normal position.

The cross-slide feed should run smoothly, and the scale must rotate with the handle.lf any stiffness occurs, it is probably the result of e r lodging between the mating surfaces.Undo the screw securing the handwheel. Remove the handwheel and pull off the collarwith the scale, taking great are to reta n t e all pr n plate w t n a roo ebeneath the collar.Clean the assembly and reassemble n reverse order. lt will be necessary to hold the spring platein place with a small screwdriver, or similar tool, w le pushing down on it to allow the collar to becorrectly located on to the shaft.

The tailstock lo e by two screw . en t e rew are loosene , the tailstock can moved left or r t.en locke own, t e ta l to can e fixed any position alon the bed way.

SETTINGS AND ADJUSTMENTS

A. CROSS-SLIDE ADJUSTMENTS

B. CROSS-SLIDE FEED HANDLE

C. TAILSTOCK ADJUSTMENTS

NOTE:lt is important that the cross-slide and compound slide adjustments are a e correctly and thatthere is no sloppiness of action. Any maladjustment will have a serious effect on the quality ofyour work, as they will all be transferred to the tool tip. lt is vital that there is as little movement ofthe tool as possible.

9

ib stripib or

AdjusterScrews

ACCESSORIES

cessories for your machine are a a la le ro ro- ar :

10

OPTIONAL ACCESSORIES

Part List(1)Item DescriptionDescriptionDescriptionDescription Q'ty Item DescriptionDescriptionDescriptionDescription Q'ty1 Change gear cover 1 54 Screw base 12 Cap Screw GB818, M4*8 9 55 Key 2*10 33 Cap Screw GB818, M4*12 6 56 Tailstock screw 14 Hinge L*B=38*31 2 57 Screw M5*8 15 Washer 4 4 58 Screw M5*20 66 Nut M4 4 60 Wedge 17 Cantilever 1 61 Lock handle 18 Nut M6 2 62 Tailstock quill 19 Washer 6 7 63 Dial 110 Compression spring 1 64 Screw M5*14 411 Spacing ring 1 65 Screw bracket 112 Cover for Spindle box 1 66 Bed lead rail 113 Rotate spindle 1 67 leadscrew 114 Key 3*6 1 68 Steel ball 5 115 Protect cover for chuck 1 69 Compression spring 116 Cap screw M4*8 2 70 Screw M6*10 417 Cap screw M5*8 3 71 Pin 3*14 118 Rear splash guard 1 72 Clutch bracket 119 Motor 1 73 Clutch 120 Key 3*16 1 74 Key 3*22 121 Check ring 8 2 75 Shaft 122 Timing pulley 1 76 Key 3*14 123 Support plate 1 77 Gear shaft bracket 124 Screw M4*10 5 78 Nut M5 226 Spring washer 6 2 79 Support plate 127 Screw M6*20 2 80 Washer 328 Washer 8 6 81 Change gear Z=72 129 Spring washer 8 6 82 Change gear Z=19 130 Screw M8*20 2 83 Change gear Z=76 131 Small round nut M18*1.5 2 84 Change gear Z=24 132 Spindle gear 36T 1 85 Gear sleeve 233 Spacing ring (I) 1 86 Gear shaft 234 Spindle timing pulley 1 87 Screw M5*8 235 Spacing ring (II) 1 88 Spacing ring 136 Behind oil seal(ring) 1 89 Change gear Z=90 137 Bearing 30205 2 90 Screw M5*25 138 Spindle box 1 91 Bed base 139 Front oil seal(ring) 1 92 Screw M6*35 440 Key 6*36 1 93 Unplug shaft 141 Spindle 1 94 Retaining plate 142 Key 1 96 Clutch rotate knob 143 Nut M6 3 97 Retaining plate 144 Screw M6*25 3 98 Leadscrew bracket 145 Chuck flange 1 99 Cross slide screw 146 Round cap screw M4*12 11 100 Saddle 147 80mm 3-jaw chuck 1 101 Cross slide nut 148 Handle screw 3 102 Leadscrew nut 149 Rotate small handle 3 103 Cross slide 150 Handwheel 3 104 Screw M4*16 751 Cap nut M6 3 105 Nut M4 752 Screw M8*12 4 106 Cross slide wedge 153 Space ring 1 107

12

Gib strip

1

Part List(2)Item DescriptionDescriptionDescriptionDescription Q'ty Item DescriptionDescriptionDescriptionDescription Q'ty108 Screw M8*40 2 130 Screw M5*20 4109 Tool rest 1 131 Timing belt 1.5*83*10 1110 Tool rest shaft 1 132 Yellow lamp 1111 Connect block 1 143 Screw M4*6 1112 Potentiometer 1 148 Screw M4*6 3113 Emergency stop switch 1 153 Tool rest block 1114 Forward/off/Reverse switch 1 194 Spring 3115 Power indicator light 2 195 Dial 1116 Fuse box 1 218 Big washer 1117 pc board 1 219 Washer 1118 Lock connect 1 220 Tailstock casting 1119 PC board box 1 221 Base plate 1120 Screw ST2.9*9.5 4 223 Screw M6*20 1121 Micro switch 1 224 Bearing sleeve 1122 Screw ST2.2*9.5 2 250 Screw M8*35 1123 Power line 1 252 Spacing ring 1125 Switch label 1 253 Screw M8*25 4126 Change gear label 1 254

13

Screw M3*8 2127 Main label 1128 Scale label (I) 2129 Scale label (II) 1

Wiring Diagram I (220-240/50Hz)see the label

14

Wiring Diagram II(100-120V/60Hz)See the label

15

No.

1

2

3

4

5

6

7

8

9

10

11

Packing List

Qty. Remarks

1

Each 1

1

1

1

1

1

2

1

3

1

Descriptions

Micro Lathe

L Hex.Wrench S:2,3,4,6

Double end wrench 5.5*7

Socket head Wrench 28~32

Center MT#1

Oil cup

Fuse

T-nut

Key for chuck

External jaws

lnstruction Manual

� � � � � � � � � � � � Micro-Mark guarantees this product to be free of manufacturing defects for a period of 90days from date of shipment, regardless of the amount of time the product has been usedand/or stored. The product, or parts thereof, will be repaired or replaced (at our option) andshipped back to you free of charge if the following conditions have been met:• the product is shipped back to us within the warranty period,• incoming transportation charges have been pre-paid,• proof of purchase has been provided, and• our Service Department determines that the problem was caused by a defect in material

and/or workmanship.Please return to � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � at the address below with a noteexplaining the problem.For products returned after the warranty period, our regular repair charges shall apply. Pleaseinclude your telephone number so we may advise you of the repair estimate. Any productreturned to the purchaser without repair work being performed shall be shipped C.O.D. forthe return transportation charges.This warranty does not cover damages resulting from improper assembly, adjustment ormaintenance, accident, alterations, normal wear, abuse or misuse, and does not apply whereproducts are used commercially. The warranty shall also not apply when the product has beenused for purposes beyond those for which it was designed or unreasonable for its size.Micro-Mark makes no other warranty of any kind whatever, expressed or implied, and all implied warranties of merchantabilityand fitness for a particular purpose which exceed the above mentioned obligation are hereby disclaimed by Micro-Mark andexcluded from this warranty.This warranty gives you specific legal rights and you may also have other rights which vary from state to state. The obligationof the warrantor is solely to repair or replace the products. The warrantor is not liable for any incidental or consequentialdamages due to such defect. Some states do not allow the exclusion or limitations of incidental or consequential damages,so the above limitations or exclusion may not apply to you.

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