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  1. #61
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    Jan 2011
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    The purchaser of my Nuttall lathe asked SWMBO when it would be suitable to get it. Only about 6months after I said it would be available. I have been cleaning up the shed and it is almost there. Another hour should do it. He and his mate who I have mentioned before (D) have said they will bring D's loader which has forks to lift the lathe and put it into a trailer. They have offered to move the CY for me as well. I am a little doubtful about the wisdom of doing this. I fear I may faint from shock at the sight of what D calls a loader with forks. Ah, life in the bush.

    One way or another the CY should be on the shed floor soon. Still need to do the slab for it tho.

    Dean

  2. #62
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    Jan 2011
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    Far West Wimmera
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    Is this the "YY" connection layout that my motor has?

    Motor Double Y Connection Layout.jpg

    Motor Terminal Block Cover.jpg

    Cheers

    Dean

  3. #63
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    Jun 2011
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    Australia east coast
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    Quote Originally Posted by A Duke View Post
    3phase things that get wheeled to the job need to have there direction checked every time they are plugged in, as the plug socket could be wired opposite to the last one. The sparky could have had it right where he wired it up.
    Regards
    Yes, that's true. When the electricity crew had to restore my power line after a tree took it out, they stayed until I'd fired up one of my 3 phase machines to ensure the rotation direction was correct. For once, given the possibilities, it was the first time.

    They asked if I wanted to check anything else seeing as I'd just fired up the Monarch. Told them there was no doubt that *all* the 3 phase outlets were wired the same way as that one, so it wasn't an issue.

    PDW

  4. #64
    Join Date
    Oct 2008
    Location
    Cairns, Q
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    666

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    Quote Originally Posted by Oldneweng View Post
    I am a little doubtful about the wisdom of doing this. I fear I may faint from shock at the sight of what D calls a loader with forks. Ah, life in the bush.
    Dean
    When I got my CQ6240 lathe 15 years ago I eventually got a neighbouring farmer to unload it from the back of my Hilux ute with his old Fordson "loader with forks". The lathe had been sitting on the Hilux for three weeks, still in crate, while I tried to work out some way to get the b----y thing off. It was a very nerve wracking experience, and the crate looked very unsteady balanced on the forks so far out from the tractor, but he managed finally to get it off the ute and into the centre of the shed without dropping it. As he carried it into the shed the top of the cab on the Fordson just brushed the roller door of the shed.

    When he went to drive out, the top of the cab had risen about two inches without the weight of the lathe so there was no way in the world we could drive the loader out again - I thought I had scored a 1960s Fordson loader for a permanent shed ornament - unusual, but very space consuming. Alas, it was not to be. After letting a lot of air out of the back tyres to decrease the overall height of the loader he was just able to move it out without destroying the roller door. An interesting afternoon.

    Frank

  5. #65
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    Quote Originally Posted by A Duke View Post
    3phase things that get wheeled to the job need to have there direction checked every time they are plugged in, as the plug socket could be wired opposite to the last one. The sparky could have had it right where he wired it up.
    Regards
    Not at work. They are all wired up the same way. Otherwise it would be bedlam with 14 people trying to connect up pumps on Monday morning that are not working right! We have close to 100 portable 3ph pumps of some sort or other. We sometimes hire machines for short term work (RO) which need to be reversed when they arrive. Now they usually have a phase change (is that right?) switch so we don't need the electrician. 50 A socket for these.

    A bigger problem was the RCD switches used to trip every time a pump with VFD was plugged in. They had to change the RCD's to ones that would cope with them.

    Dean

  6. #66
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    Jan 2011
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    Quote Originally Posted by gallegos View Post
    Cant remember the size of the hole in the ammeter... They used to be slightly different with a smaller toroid attached to the back but it still it fit a 6mm2 cable comfortably. You only need to run one wire through the toroid, dont think it matters if its active or neutral.
    The reason I asked is because I am using 2 core/earth flat 6mm2 and it is fairly wide. It could be mounted inside the VFD tho so no real probs.

    Dean

  7. #67
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    Quote Originally Posted by franco View Post
    When I got my CQ6240 lathe 15 years ago I eventually got a neighbouring farmer to unload it from the back of my Hilux ute with his old Fordson "loader with forks". The lathe had been sitting on the Hilux for three weeks, still in crate, while I tried to work out some way to get the b----y thing off. It was a very nerve wracking experience, and the crate looked very unsteady balanced on the forks so far out from the tractor, but he managed finally to get it off the ute and into the centre of the shed without dropping it. As he carried it into the shed the top of the cab on the Fordson just brushed the roller door of the shed.

    When he went to drive out, the top of the cab had risen about two inches without the weight of the lathe so there was no way in the world we could drive the loader out again - I thought I had scored a 1960s Fordson loader for a permanent shed ornament - unusual, but very space consuming. Alas, it was not to be. After letting a lot of air out of the back tyres to decrease the overall height of the loader he was just able to move it out without destroying the roller door. An interesting afternoon.

    Frank
    My CY is 1500kg and I have no idea what sort of loader he has. They can move the old one cos if they drop it, its their problem. I will still have to get the CY out of the implement shed as it is 3m back, lined up front to back. No way to get hold of it. It will have to go back on the trailer. Maybe just get them to lift it and move it forward 10m or so to line up with the workshop door after I move ute/trailer (at right angles) forward to make room. Should be room now it has been cleaned up. The CY is sitting up about 60cm off the ground on wooden blocks. Back the trailer in and roll it on. Easy!

    I have been working on finding a new location for the shaper bits for painting as they are in front of the CY. I am going to park them next to the car in the carport. Lucky it is almost a 2 car one.

    Dean

  8. #68
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    I have been intending to remove the motor for the last couple of days but have not managed to get there yet. I have moved all the paintable shaper pieces as I said so it is now an easy job to clear the rest of the stuff for moving the lathe. I have also got the shed within minutes instead of hours for machine movement. I am ready to call in the troops.

    Dean

  9. #69
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    I have finally got around to getting the motor out. It is a close fit to get out, and heavy. Definitely no problems with the bearings. I started pulling it apart but did not get very far. Our eldest grandson has been visiting Nanna and Poppa on the farm and we went to a local state park for tea and exercise. Saw a huge number of roos. We have to take the grandson home tomorrow, but I hope to get some more done in the afternoon if I can drag SWMBO away from the shops.

    Dean

  10. #70
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    The Colchester Bantum, Mark 2, with 1600 RPM has a two speed motor. I can send you a pdf of the wiring diagram page from the handbook if you send me a private message with an email address. It may help you, or then again, it could confuse you more!

    Basically, two speed three phase motors either have two sets of windings which is a bulky arrangement, or the windings are arranged so that the connections can be changed - effectively into a series or parrallel connection to get two poles or four poles, and thus the two speeds.

    The more poles in a motor, the slower it will rotate.

    From the formula: f=np, the speed of a motor can be calculated. In the formula f is the supply frequency - 50 Hz in Australia, n is the speed in revs per second of the rotor, (because the supply frequency is in cycles per second), and p is the number of PAIRS of poles in the motor which is always an even number. The actual speed of the motor will be less than the speed calculated, and this is due to "slip frequency" between the rotor and the stator unless you have a synchronos machine, and this is all getting too technical, so I will leave it!

  11. #71
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    Ok, so I did not get a chance to do any more work on the motor. Have to partly blame myself tho. We spent quite a bit of time looking at screwdriver type impact drivers at Masters on the way out of Mt Gambier. I have been using one from a kit that SWMBO bought some time ago. I wanted one of my own. Bosch Pro version 1 battery $130. 2 Batteries $198. Pro version + sabre saw + drill with 3 batteries $225. I could not resist. Sigh. Then our youngest grandson and parents came down from Adelaide to pick up some wine I bought from work. My stepsons 30th birthday drinks.

    Tomorrow I have to make a puller to remove the fan. The pulley is a triple with a braking circumference on the inside. There is no visible method to hold this on. I am guessing it is pressed on. There is a keyway and key. The outer end of the pulley has a disk with 2 bolts that screw into the end of the shaft. Comments?

    Dean

  12. #72
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    Ueee is offline Blacksmith, Cabinetmaker, Machinist, Messmaker
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    Quote Originally Posted by Oldneweng View Post
    There is a keyway and key. The outer end of the pulley has a disk with 2 bolts that screw into the end of the shaft. Comments?
    Hi Dean

    On my new bandsaw the motor and gearbox pulleys are just a soft press fit, with a keyway. There is a single bolt and washer holding them against a shoulder in the shaft. A 3 armed puller got the gearbox one off easily, a few taps with a soft hammer and then a long bolt followed by the original bold got it back on without an issue.

    Ew
    1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.

  13. #73
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    Quote Originally Posted by Ueee View Post
    Hi Dean

    On my new bandsaw the motor and gearbox pulleys are just a soft press fit, with a keyway. There is a single bolt and washer holding them against a shoulder in the shaft. A 3 armed puller got the gearbox one off easily, a few taps with a soft hammer and then a long bolt followed by the original bold got it back on without an issue.

    Ew
    Thanks Ewan. I am not sure if I have to remove the pulley yet. I only want to look at the windings to work out once and for all which way it is connected.

    Dean

  14. #74
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    I did get the motor pulled apart yesterday. It was a simple, easy job.

    The photo highlights what I have figured out so far.

    The black wires from the junction box, connect to 2 winding wires inside the large insulating tubes which have the wire designations on them in texta and repeated in blue text. The red arrows point to the slot that 1 of these 2 winding wires go into. I have marked a red "1" at a chosen starting point for the windings. I have not yet worked out where the second wires go to as it is very difficult to track them without disturbing the varnish too much and they go to the outside of the windings which is very congested as you can see.

    Motor Windings Internal 2.jpg

    The coils have a pitch of 6 slots I think. Also hard to tell. There is a total of 48 slots.

    The slot numbers from my arbitrary start point, for the connections are:

    1V 01
    2V 05
    1U 17
    2W 21
    1W 33
    2U 41

    I am not sure at this stage whether this is enough information to determine anything specific except for the fact that the connections to the wires are easily accessible.

    I will have a look at the pdf books Gallegos pointed me to and see if I can pinpoint the type. They have been very useful in learning about this motor. Thanks Gallegos.

    Dean
    Attached Images Attached Images

  15. #75
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    Just to refresh everyone's memory.


    DISCLAIMER

    No liability is accepted by UBeaut or the Wood Working Forum's administrators
    or moderators for advice offered by members posting replies
    or asking questions regarding electrical work.
    We strongly advise contacting a Licensed Tradeperson for all electrical work.

    WARNING

    Information supplied within posts is not to be considered as detailed formal instructions to complete a task.
    Members following such information do so at their own risk

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