|
|
 Posted - January 29 2007 : 6:26:15 PM
|
I bought a 430 PC Alco off the bay for parts. It wouldn't run but the shell seems mint with complete handrails, minus a horn. Somebody has already drilled out the rivets and replaced them with screws, so getting it apart was no problem.
The armature didn't spin freely and I noticed the rivet that holds the magnets had been replaced and that magnets were touching the armature. I found a nut and bolt that fits but it interferes with the turning of the truck. Any quick, easy and durable fixes out there?
Thanks! [}:)]
Alco Fan
|
Country:  USA ~
Posts: 2496 ~
Member Since: August 03 2006 ~
Last Visit: September 17 2024
|
Alert Moderator
|
|
|
|
Posted - February 03 2007 : 12:18:51 PM
|
I wonder what the savings was for Tyco to develop and replace the MU-2 with the PT? The MU-2 seems so simple and sturdy and the PT isn't. Maybe some one offered them a savings thousands over the total run of PTs.
Alco Fan
Edited by - Alco Fan on February 03 2007 8:05:04 PM
|
|
Country: USA ~
Posts: 2496 ~
Member Since: August 03 2006 ~
Last Visit: September 17 2024
|
Alert Moderator
|
|
|
|
Posted - February 03 2007 : 8:04:34 PM
|
It's repaired. My PC C-430 Alco now runs. I secured, what I think is the field and top magnet, (the metal and magnetic curved plates that cup the armature), with a 2-56x1 SIG hardware bolt and nut. Before this fix the field was touching the armature and didn't spin freely. The head and nut interfered with the truck mounting plate and turning so I used my cutoff wheel to grind down both the nut and bolt. The local hobby shop had the hardware so that was the easiest and quickest and cheapest fix.
It runs good but hot. The brushes sit at an angle and are not completely on the armature, is this why?
Alco Fan
Edited by - Alco Fan on June 25 2007 2:51:26 PM
|
|
Country: USA ~
Posts: 2496 ~
Member Since: August 03 2006 ~
Last Visit: September 17 2024
|
Alert Moderator
|
|
|
|
Posted - February 06 2007 : 09:40:49 AM
|
| The brush angle shouldn't have any effect on the motor. Check to make sure that there are no binds. Are the bearings clean and oiled? Are the worms meshing well and greased? Are the brushes applying so much force on the commutator so as to slow it down? Are there any catches or binds in any other part of the drivetrain?
|
|
Country: USA ~
Posts: 715 ~
Member Since: May 03 2006 ~
Last Visit: September 19 2025
|
Alert Moderator
|
|
|
|
Posted - February 06 2007 : 09:43:28 AM
|
| Also, if you can test the motor without the wheels touching the track, does it get hot? Or does it only get hot when the loco is running on the rails. If the motor gets really hot when off the track, your motor is probably about to melt down. There is a short in the windings that would be hard to find and repair.
|
|
Country: USA ~
Posts: 715 ~
Member Since: May 03 2006 ~
Last Visit: September 19 2025
|
Alert Moderator
|
|
|
|
Posted - February 06 2007 : 2:00:05 PM
|
I have checked most of this since I had it almost completely apart to the armature and worm gear. The brush pressure doesn't seem unusual.
It runs and pulls well though it gets hot. It starts with little throttle movement. I have been oiling the gears and not greasing them.
Thanks Hypoponera!
AF, Bob
Alco Fan
|
|
Country: USA ~
Posts: 2496 ~
Member Since: August 03 2006 ~
Last Visit: September 17 2024
|
Alert Moderator
|
|
Home
Forums
Events Calendar
Forum Admins & Mods
Register
