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Yes, you have to love it when the ogone (some people call it a guru) pops and the water drains on the number 3 motor (number 4 on a six axle). Usually not an issue unless, you have a loose fitting top brush cover. Another issue we have from time to time is when someone forgets to kick the ears off the air compressor and it gets freeze damage. The good part for me is that is machinist work Not to get too long winded but the best High Voltage ground I've ever had was caused by a shorted ampmeter. Meggered the number two motor circuit and found a dead ground, no voltage and 10K resistance. Cut the motor and it was clear, meggered the carbody leads, grounded. Cut the carbody lead just below the #2 shunt, clear. Took the two ampmeter wires off the shunt, clear. Replaced the ampmeter and the HVG was gone.
Not an engine but I totally understand chasing grounds!!We had a master caution panel that blew the flasher circuit. The circuit box was inside the nose of the plane and was a PITA to replace. We'd replace it and it worked fine on the ground. The plane would fly and it wouldn't flash anymore. We chased that damn thing for at least a month. We rang every wire associated with it out and couldn't find anything. Eventually we found that the wire bundle to the panel was grounding out on a screw for a different bundle. The plane had gone through a mod to add a new radio up front and the screw for that bundle was to long for where it was in the cockpit. When we rang out the wires the boxes were removed so it didn't touch the screw. The only reason we found it was we finally checked the wires with the boxes installed by almost completely removing the rest of the cockpit.I tried to figure out what kind of plane it is but I came up blank. It does look like a military aircraft though. Am I close?The radio is the center left screen, and the Master Caution is above it
No, I'm saying during regular maintenance certain times of the year the armatures become wet because of humidly / weather conditions. Now when you say cold snowy conditions, are you saying you are opening the brush covers and filling the motors up with snow? It's not uncommon that locomotives in the winter sit outside dead and drained in windy snowy conditions, waiting on parts for repair. After these locomotives have sat outside for a week or more, do we have to change out the traction motors? NO. Water can cause a ground and drying out the locomotive will solve that problem, but most grounds are caused by deteriorated cabling or heat breaking down insulation. Do I recommend storing motors outside, NO I did not say that, but I reminded everyone that locomotives operate outside in all weather conditions. I've seen locomotives operate without any issues and the trucks were packed with snow.
thread drift....I was looking for engine throttles. I see two. it looks like a bus for the glass out front.and the eyes on the yolk make me think military... though I see no red covered switches.... Just the one next to the caution panel for bail out. The fire extinguisher handles are just out of view above the windscreen.so if the plane is armed, the pilots are not operating that equipment. We don't launch weapons, only weapons systems Its used for airborne command control and intercept, telling Hornets where to go.
The disk on top is the radar antenna.
The only brushes I have ever changed were the N scale motor ones or on a Dremel tool. Both operated indoors in dry environment. I asked for a clarification of your post because I didn't quite understand it. With the additional posts now made, by you the real-maintenance guys, about the real traction motors I now get the picture.
Changing locomotive brushes is an all day affair. Lets do the SD-35. First there are 12 brushes per motor times six = 60The D32 main gen has 60 brushes for main propulsion and 4 for the D14 rotor. 8 brushes for the aux gen8 brushes in the dynamic brake fans1 load regulator brush2 fuel pump brushes2 turbo lube pump brushes4 cab heater brushes149 brushes total.Did I miss any ?
Are you guys interested in having me do a design for these? I could put something together in a snap.-David
David, Are you thinking just the motor or motor and wheel set? Could you make the motor to accept a user supplied wheel set?
Looks like you guys brushed everybody up on the the brush situation on 1:1 locos! To continue this slightly OT diversion, where does all the carbon dust go insode those motors and how often do these brushes need replacing?
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Topic: Anybody know of N Scale traction motors (Read 7991 times)
