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The following article was originally published in the newsletter of the ADAM Family North User's Group based in Calgary and was provided to us \r~05,80\\ 
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\r~05,40\\ 
\W\Q\CINSTALLATION\\ 
 PRINTER\\ 
 COOLING FAN.\w\\ 
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The following article was originally published in the newsletter of the ADAM Family North User's Group based in Calgary and was provided to us by Bob Stroud. \\ 
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To facilitate the continuous operation of my ADAM system for the NORTHERN LINK BBS, I considered the effects of such sustained use of this equipment and concluded that a cooling fan would add a marked degree of reliability to ADAM's performance. References in publications had indicated that the ADAM might have a problem with heat generation under continuous operation.\\ 
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Fortunately, I had on previous trips to California, acquired a selection of sprite fans. An examination of the fans and the innards of the printer compartment presented a few options to choose from. The question of potential location, exhaust or input mode, common or separate power supply, switched or unswitched, were some of the alternatives taken into account.  The following are the instructions for a do-it-yourself project. AFN (or V.I.S.A.), or the author assumes no responsibility for damage caused by the use or misuse of these instructions. they reflect the writer's account of a retrofit to his equipment. If warranty exists on your equipment it may be voided. If you are inexperienced with electrical hook-ups, have a technician do the wiring.\\ 
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PARTS LIST.\\ 
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1. EG&G Roton Sprite Fan (Impedance Protected)\\ 
\....Jameco Part No. SP2A2LU........................$4.95.\\ 
2. Finger Guard Zinc Plated.\\ 
\....Jameco Part No. SFG648.........................$1.69.\\ 
3. Two Wire Appliance Cord Set.\\ 
4. Rocker Switch SPST 115V, 6 amp (Optional)\\ 
5. 4, 3/16" x 2" Round Head Stove Bolts.\\ 
6. Connectors.\\ 
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Since the primary generator of heat in the printer is the transformer, and the heat sinks are also in the rear compartment, it was decided to locate the fan on the left hand side at the rear of the printer. The dimensions of the sprite fan are 3.125" x 3.125" x 1.64" which will require the removal of the support post at the left rear of the ADAM printer.\\ 
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PROCEDURE.\\ 
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1. Unplug the printer unit from the CPU and the power source.  Remove the printer cover. Invert the printer and remove the 8 deep inset screws at edge of the printer. (2 on each side). Do not remove any of the other screws which hold the printer metal chassis to the case.\\ 
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\r~45,80\\ 
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2. Carefully turn the printer over and remove the upper shell.  (Lighter beige portion at the top). Remove the screw that attaches the black plastic channel to the upper shell at the left rear (nearest the paper pressure release lever). This channel will be permanently removed. Note the small ridges on the inner surfaces of both the shells on both sides of the black plastic support. These ridges must be removed and the inner surface of the upper and lower shells made relatively flat.\\ 
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3. Cut away the pedestal on the lower shell that supported the black plastic channel to make it level with the bottom shoulder of the lower shell. See sketch. Cut away any ridges on the sidewall of the shell in the area where the black plastic channel was located.\\ 
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4. Lay the Sprite Fan on a piece of light card or film and carefuly trace a template of it's outline and the location of the mounting holes (4). Draw a diagonal line between the holes to obtain a "centre" for the fan opening. Replace the upper shell in it's original position and place the template as shown in the sketch. With an awl or a scriber, mark the location of the fan centre and the 4 mounting holes. \\ 
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5. With a pair of compasses or dividers, scribe a circle with the centre at the intersection of the diagonal lines, (radius 1.5".) on the outside of the assembled printer case. Remove the upper printer shell once more. Cut out the inside of the scribed circle with an exacto knife, NT or Olfa cutter. The sharper the blade the better; but be careful. The material will cut easily and can be scored almost through with the compass or divider and then completed with a knife. Smooth the edges for a clean finish.\\ 
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6. Drill the 4 fan mounting holes as marked, with a 7/32" drill. If you are using as switch, cut out an appropriately sized opening as shown in the sketch. Drill a 1/4" hole for the fan power cord to pass through the lower shell and feed the stripped end of the cord through the hole. Wrap the cord with 4 or 5 turns of electrical tape on the inside of the case to act as a strain relief. Make the necessary connections to the switch and fan to complete the electrical circuit.\\ 
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7. Place the fan inside the lower shell and match the two lower mounting holes with the drilled holes. Place finger grill in place and engage the 3/16" x 2" stove bolts, but do not tighten. The 3/16" bolts will readily self-tap the soft zinc alloy body of the fan.\\ 
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8. Replace the upper shell and engage the upper mounting bolts. Adjust the upper shell so that it is aligned and tighten all 4 of stove the bolts. Turn the printer over and replace the 7 screws on the bottom of the printer.\\ 
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6. Drill the
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