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  1. humbleuser

    Need help with Van Dorn Pathfinder EL problem

    some more information. it's a Simatic S5 controller. TIA
  2. humbleuser

    Need help with Van Dorn Pathfinder EL problem

    Hello everyone, I'm a long time subscriber but infrequent poster. I've asked for help in the past and this forum has never let me down. I have a 94 van dorn 170 ton, 14 oz molding machine with a Pathfinder EL control. This machine has been sitting idle for over 2 years but it needs to run...
  3. humbleuser

    after market injection molding machine parts

    Hello everyone. It's been a while since I posted here but I know where to get solid advice when I need it. :) Does anyone know of company that offers repair parts for older injection molding machines? I have an old Cincinnati Milacron (1974) 250 ton Extended Platen machine that needs a new...
  4. humbleuser

    best resin for cap/closure

    Thanks everyone. Making the connectors/tabs/gates(?) thinner really isn't an option right now. I'm hoping to make good parts by trying alternate resins and, to a limited extent, playing with the process. Someone else here mentioned trying a lower molecular weight (sp. gr.). I think we'll...
  5. humbleuser

    best resin for cap/closure

    Hi Everyone: I have inherited a mold that produces a tamper evident cap almost identical to those used in plastic milk/water jugs. The cap has a ring that sits below the cap body that must break away from the cap at 9 evenly divided points along the circumference when the cap is initially...
  6. humbleuser

    motor failure

    The lead read "PC". The repair shop said that there was a thermistor installed but they had forgotten to install it initially. They sent a guy out he installed it here at my shop. The motor seems to be running just fine now.
  7. humbleuser

    motor failure

    Thank you moira. I'm the owner of a modest injection molding company. So basically, I'm the maintenance man, purchasing agent, set up man, salesman, tooling engineer, expert troubleshooter...you get the picture. I do have a few people working for me such as operators and foreman. But the...
  8. humbleuser

    motor failure

    Hey, I'm a molder not a motor repair man :)
  9. humbleuser

    motor failure

    I installed the motor back in the machine and connected the power to motor...correctly!!! After pump ran for a few minutes and all of the air was bled from the hydraulic system the motor/pump combo run nice and smooth. The thermistor (165C rating) is connected to the PLC and that should take...
  10. humbleuser

    motor failure

    Thank you everyone. A technician from the repair shop is installing one right now as I type. They admitted that it was their fault for not installing one. I hope to have this motor back in the machine and connected by the end of the day. Again, thanks everybody.
  11. humbleuser

    motor failure

    I haven't traced the wires yet, but one of the wires coming out of the motor was labeled "PC". The two wires from the control panel are labeled but I'm having a hell of a time finding their reference in the machine schematics. If it is a connection for a thermocouple then I can do with out it...
  12. humbleuser

    motor failure

    Could you please post a link to where I may be able to get a thermocouple for a motor applaication? Thank you.
  13. humbleuser

    motor failure

    I assume these leads are connected to thermocouple. Where would the thermocouple be mounted?
  14. humbleuser

    motor failure

    The repair shop called me today and informed me that I indeed have the motor hooked up incorrectly; the motor is a delta not star. that explains why I burnt it out. Please keep in mind that there's no info on the face plate. next time I will do a continuity check. Expensive lesson on my...
  15. humbleuser

    motor failure

    The shop insisted again that I had the connection correct. I'm thinking the bearings on visual inspection looked fine but under rotation and load they were not. The motor was rewound and the bearings will arrive/be installed on Monday. I believe I mentioned that the pump had been rebuilt a...
  16. humbleuser

    motor failure

    The machine is a 1989 model.
  17. humbleuser

    motor failure

    The breaker that is currently in the machine is 100A. If anything, I'll need a higher rating breaker to handle the lower voltage/higher amp draw. Keep in mind that the breaker never tripped. Initially, I thought for sure that I miswired the connections. The repair shop insists that I had it...
  18. humbleuser

    motor failure

    The motor was working fine for the 1/2 hour that I saw it running prior to me buying the machine; it was running under 460 power. I forgot to mention in my original post that the face plate doesn't show the lower/higher connections. It's possible that I misconnected the leads (I had 4-5-6...
  19. humbleuser

    motor failure

    but shouldn't the windings be able to withstand the additional heating from the lower voltage since the motor is designed to run at, either, 230V or 460V? Do you think the windings were on the verge of going bad and the lower voltage was "the straw that broke the camel's back"?
  20. humbleuser

    motor failure

    I don't hang out in this forum anywhere near enough as I should. This is great technical site. However, I do have a question that I'm hoping some of the more experienced mebers can answer. Keep in mind that I'm not a trained electrician; I'm more of general maintenace type of guy :) I have...

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