Changeset 669 in t29-www
- Timestamp:
- Sep 23, 2014, 9:43:05 PM (9 years ago)
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en/devices/ibm1130-blog.php
r667 r669 55 55 the machine.<br><br> 56 56 57 <b>13.09.2014:</b> The next step involved testing the card punch 1442 by means of 58 the diagnostic tests. The test program punches cards with certain patterns in 59 a first step. These cards are then read back in a second step and compared 60 with the expected patterns to reveal any differences. Our punch only punches 61 the first 40 columns of a card which is obviously an error. Fortunately, the 62 console printer works fine despite the error message generated by the 63 console-test program (07.09.2014).<br><br> 64 65 <b>20.09.2014:</b> We are currently creating a list of known problems regarding the 66 1132 printer. Its restoration is especially challenging. After being unused 67 for more than 30 years, the oil has become gummy, so just powering the 68 printer is not an option, too many things could and would be damaged. Thus, 69 all moving parts have to be inspected manually. It turned out that the 70 central driveshaft is stuck. Therefore, the motor was removed and restored 71 indecently. In addition to this, the remaining printer parts have been heated 72 with a heater blower and sprayed with W40 lubricating oil. After these steps, 73 the driveshaft could be rotated manually, so the motor was installed again. 74 Now the mechanics of the printer runs smoothly without any signs of trouble.<br><br> 57 75 58 76 <p><b><em>This section will be gradually continued.</em></b></p>
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