Instruction/ maintenance manual of the product 90979 Harbor Freight Tools
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DU AL DR UM RO T AR Y TUMBLER ASSEMBL Y AND OPERA TING INSTRUCTIONS ® 90979 3491 Mission Oaks Blvd., Camarillo, CA 93011 Visit our W eb site at http://www .
SKU 90979 For technical questions, please call 1-800-444-3353. Page 2 Save This Man ual Y ou will need the manual for the saf ety w arnings and precautions , assemb ly instructions, operating and maintenance procedures , par ts list and diagram. K eep y our inv oice with thi s manual.
SKU 90979 For technical questions, please call 1-800-444-3353. Page 3 9. Do not overreac h . K eep proper f ooting and balance at all times. Do not reach ov er or across running machines. 10. Maintain tools with care . K eep tools clean f or bette r and saf er perf or mance.
SKU 90979 For technical questions, please call 1-800-444-3353. Page 4 Unpac king When unpacking, chec k to make sure all of the par ts on page 8 are included. If any par ts are missing or broken, please call Harbor F reight T ools at the n umber on the cov er of this manual as soon as possibl e .
SKU 90979 For technical questions, please call 1-800-444-3353. Page 5 Figure A conditions around the tumbler are unchang e d, and that the tumb ler continues to operate in a safe location. II. Bef ore Use 1 . Bef ore the first use, and once a month following, put a fe w drops of oil on the Shaft Sleeve (14) bear ings.
SKU 90979 For technical questions, please call 1-800-444-3353. Page 6 Oxide , or Titanium Dio xide. When tumbling hard materials , it might be necessar y to repeat the steps . Note: More specific instr uctions f or each step are cov ered under “Specific Instructions”, below .
SKU 90979 For technical questions, please call 1-800-444-3353. Page 7 crack ed stones . Place the stones in a plastic colander , or old nylon soc k and rinse them completely off . There should be no slurr y or grit remaining on the stones . IV -b. Second Grind: Carefully replace stones into the Rubber Barrel (22) .
SKU 90979 For technical questions, please call 1-800-444-3353. Page 8 Maintenance 1 . Bef ore the first use, and once a month following, put a fe w drops of oil on the Shaft Sleeve (14) bear ings. 2 . Chec k the Belt (37) tension. It must be k ept as loose as possib le without allowing it to slip on the Driving Pulley (35) .
SKU 90979 For technical questions, please call 1-800-444-3353. Page 9 P ar ts List PLEASE READ THE FOLLO WING CAREFULL Y THE MANUF A CTURER AND/OR DISTRIB UTOR HAS PR OVIDED THE P A R TS DIA GRAM IN THIS MANU AL AS A REFERENCE T OOL ONL Y .
SKU 90979 For technical questions, please call 1-800-444-3353. Page 10 Assembl y Diagram NO T E : Some par ts are listed and shown f or illustration purposes only and are not av ailab le individually as replacement par t s .
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