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This topic comprises 2 pages: 1 2
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Author
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Topic: Pre Alpha Potts Platter Motor?
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Monte L Fullmer
Film God
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Posts: 8367
From: Nampa, Idaho, USA
Registered: Nov 2004
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posted 05-12-2007 06:14 PM
Since I'm the one that threw the rebuild concept in the "tips" section on this topic, I'll help this one along some - in all of the 2M262 replacements that I've done (in as well as having a good stock of 1R236 brushes from Grainger in stock as well..), I've just maintained that when doing the motor switchout, you keep the same wiring configuration. (and you'll have to take off that front stage of that motor to make this all fit in..)
1- Bearing noise. Take your pick either disassembling the motor to clean and repack the bearings, pull them off and press on new ones, or just do a simple motor replacment.
2- I'd keep the same wiring configuration on the motor that you're having problems with. You need the resistors to slow down the current rush so when the motor is switched between rewind and makeup/payout to keep the payout and rewind at a more stable rate since these motors are such high-torque motors....(Why you don't need the resistors on the MUT..it doesn't need that reduction where you need all the torque that motor can muster).
3- ON that question, I'm not sure, for the earliest one that I've done a 2M262 on was a BALCO platter - pre ALPHA platter..and it still worked okey.. Only way to find out is to actually disassemble one and see if the AMETEK/LAMB frame matches up with the one that youre disassembling and take it from there.
Later on, the diode was used to cut the current in half to reduce that payout torque with the Alpha platters came on board. Now, there's just that big 200w resistor mounted inthe tower to handle all of this for the AP-3 units.
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