pillardrill
Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| pillardrill [2020-10-07 16:22] – maintenance log MirZa | pillardrill [2025-04-02 07:51] (current) – reformat page and update maintenance log MirZa | ||
|---|---|---|---|
| Line 1: | Line 1: | ||
| + | ====== Tull LT-16J (Small pillar drill) ====== | ||
| {{: | {{: | ||
| - | {{: | ||
| - | Left (small pillar drill): Tull LT-16J | + | * Adjusting the belt tension and changing the speed is done with the big nut and bolt on the right side, which allows the motor to pivot. [[https:// |
| + | * [[https:// | ||
| - | Right (Large Blue pillar drill): Union PD2 by Boxford | ||
| - | * [[http:// | ||
| - | * If you oil the stand of the blue pillar drill with PTFE lubricant, the table becomes much easier to move up and down | ||
| - | * Blue drill has an integrated thermal overload relay which is supposed to cut out above 2 Amps. This might not be working though | ||
| - | [[https:// | + | ===== Maintenance log ===== |
| - | + | * **22 Sept 2020** - Belts fitted, drill works | |
| - | Maintenance log for Tull: | + | |
| - | | + | |
| - | * 14 Sept 2020 - Motor replaced. It was slightly taller and box around the belt didn't allow it to pivot enough to tension the belts - the hole in the box for the motor was enlarged and slightly shorter belts were ordered | + | |
| * [[https:// | * [[https:// | ||
| * [[https:// | * [[https:// | ||
| - | * 4 Sept 2020 - Tull drill press motor started smoking after a piece of metal fell inside (speculation) when cleaning the top box | + | |
| + | * **before 2020** - No voltage release (NVR) switch fell apart, replaced with commonly available NVR from ebay | ||
| + | |||
| + | |||
| + | ====== Union PD2 by Boxford (Large Blue pillar drill) ====== | ||
| + | {{: | ||
| + | |||
| + | * [[http:// | ||
| + | * If you oil the stand of the blue pillar drill with PTFE lubricant, the table becomes much easier to move up and down | ||
| + | * Blue drill has an integrated thermal overload relay which is supposed to cut out above 2 Amps when overloaded | ||
| + | |||
| + | [[https:// | ||
| - | Maintenance log for Union: | + | ===== Maintenance log ===== |
| - | * 28 Sept 2020 - Union drill fixed. The a coil on one of the poles of the thermal overload relay integrated into the NVR contactor melted. Fix was to replace it with the coil from the unused pole of 3 phase contactor. | + | * **1 Apr 2025** - Contactor fixed |
| - | * 13 Sept 2020 - Union drill reported broken | + | * One of the contacts on the contactor had a bad connection and discoloration from high temperature. |
| - | * (couple years ago, 2017?) Union pillar drill hacked to work with 230V single phase instead of 400V three phase. | + | * Sanded away the soot from the arcing using fine sandpaper to reveal the clean metal underneath. |
| + | * The other issue was the solenoid of the contactor having enough force to stay closed, but not close by itself. This is probably due to the capacitors that are in series with the solenoid coil and being used as a capacitive voltage divider. With age, their ESR increases (I think?) and the voltage across the coil decreases. Measured voltage was 56V. I did not have the right capacitors on hand, so I decreased the distance the switch has to travel by putting in some shims, which decreases the necessary voltage to close the switch. | ||
| + | * The next time it breaks, either replace the capacitors | ||
| + | | ||
| + | * **28 Sept 2020** - Union drill fixed. The a coil on one of the poles of the thermal overload relay integrated into the NVR contactor melted. Fix was to replace it with the coil from the unused pole of 3 phase contactor. | ||
| + | | ||
| + | | ||
| * "Costa and I fitted it with a DC supply for the contactor' | * "Costa and I fitted it with a DC supply for the contactor' | ||
pillardrill.1602087771.txt.gz · Last modified: 2020-10-07 16:22 by MirZa