Instruction/ maintenance manual of the product 33684 Harbor Freight Tools
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7” x 10” Mini Lathe Model 33684 Assembly and Operating Instructions 3491 Mission Oaks Blvd., Camarillo, CA 9301 1 Copyright 2000 by Harbor Freight T ools ® . All rights reserved. No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight T ools.
Important Safety Instructions READ ALL INSTRUCTIONS AND W ARNINGS BEFORE USING THIS T OOL. Operator COMMON SENSE AND CAUTION ARE F ACTORS WHICH CANNOT BE BUIL T INT O ANY PRODUCT . THESE F ACT ORS MUST BE SUPPLIED BY THE OPERA TOR. PLEASE REMEMBER: 1.
Operation 1. Never force the tool or attachment to do the work of a larger industrial tool. It 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.
Additional Safety Rules for Mini Lathe 1. Before turning on the motor , make sure that proper lubrication is included (see page of this manual). 2. Always dismount the chuck and lathe’ s face plate by hand. Do not use power tools to perform these tasks.
Unpacking Carefully unpack the Mini Lathe and check all items. Figure 1 below shows all the contents of the carton. Do not discard any packing material until the Mini Lathe is fully assembled and operational. If any parts are missing or broken, please call Harbor Freight T ools at 1-800-444-3353.
Mini Lathe Features 1. Power Switch 2. Power lamp 3. Fuse 4. Speed Control Knob 6. Chuck 7. Compound Rest 8. T ool Post 9. Fixed Center 10.T ailstock Quill Fix Holder 1 1. T ailstock 12. T ailstock Quill Adjust Handwheel 13. T ailstock Set Screw 14. Compound Rest Crank 1.
Adjusting the Mini Lathe 1. Clean off the protective grease on the Mini Lathe. 2. Check to see that the three set screws on the chuck are tight. 3. T urn the chuck by hand and check that it rotates freely . 4. Move the Feeding Direction Selector (located on the back of lathe) to the middle.
Replacement of Jaws There are two types of jaws: the internal jaws and external jaws. Please note that the number of jaws fit with the number inside the chuck’ s groove. Do not mix them together . When you are going to mount the jaws, mount them in ascending order .
T ool Post Adjustment Loosen the lever shown in (B) of figure 1 1, the adjust the tool post position. Once the adjustment is made, re-tighten the lever . T o replace the work cutter , loosen the screws (A) with the allen wrench provided. Automatic Feeding Adjust the feeding direction selector to the direction you desire.
3. By changing the tool post angle and adjusting the compound rest, you can do internal cutting (figure 15). 4. After adjusting the angle of the compound rest, you can do bevel cutting (figure 16). Set-Up Instructions for Threading Gears By changing the gear set-up it is possible to cut any thread size.
Gear Settings for V arious Thread Sizes SKU #33684 Page 11 Threads Stud Gear Box Threads Stud Gear Box Per Inch A B C D Per Inch A B C D 12 40 30 38 20 50 60 57 13 40 65 60 30 40 20 50 14 40 35 44 20 .
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SKU #33684 Page 15 Parts Diagram.
Additional Set-Up Instructions for Threading Gears When the lathe is ON and the Spindle is revolving, the threaded bar and the Thread Dial Indicator will also be revolving (see below). Insure that the Alignment Mark is lined up with the Thread Dial Indicator before operation.
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P ACKING LIST N o . Description Qt y Part No. 1 7” x 10” Mini Lathe 1 piece 2 Chuck external jaws 3 piece 3 Chueck Key 1 piece 4 Fuse 5A 1 piece 5 Gear Z: 30, 35, 40, 40, 45, 50, 55, 57, 60, 65 10.
SKU #33684 Page 18 Potentiometer Switch 2 Motor Switch 1 1 10V/60Hz Fuse SCHEMA TIC DIAGRAM REV 08/04.
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If you already are a holder of Harbor Freight Tools 33684, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Harbor Freight Tools 33684.
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