A slight corrosion builds up on sliding parts when not used. A Scotchbrite rub down helps. The part should work fine after use. Make sure you have enough voltage. It should come off the accessories terminal.
The plunger is under the shed. To get at it you need to pry the tabs underneath. The spring at a certain angle also gives the impression of a bind up. It may just need adjusting. If the door drags, bend the flat bar underneath to move it up.
Should The plunger on my gateman move easily through the coil? I’ve removed it from the coil and cleaned the inside of the coil and the plunger itself. Upon reinsertion of the plunger into the coil, the plunger sticks half way through the coil. Is this normal? Should it slide through easily without any resistance?
I assume the center of the coil became slightly deformed due to heat buildup. My solution was to use a very fine rat tail round file and slowly file the center of the coil until the plunger slid freely. Lubed the center with dry graphite and reassembled. It worked. The little man comes out of the house like a champion. No hesitation on the way out or on the way in. Thanks to T Man for helping with his posts and answering my question about the sliding plunger.
Got a 45N Gateman for Christmas. Works fine and everything is intact. Tandem Associates points to the 1945 model (high cross bucks, plain toolbox cover, red bulb).
The base has spots that have been painted over - brush marks, odd colors. I'd like to sandblast and repaint the base. I'd use the closest color Rustoleum or Krylon has to offer.
I don't replace rivets. I have #4, 3 mm, maybe 2mm screws, nylon insert lock nuts, nylon screws and nuts, etc, that I use in place of replace rivets (e.g., on Marx couplers and Marx O-27 switch base plates).
Are there any show stoppers to disassembling the mechanism from the base?
Yes, my man has the nut underneath. I forgot to mention that.
The tab removal is best by bending them at 45 degrees and pry off. The base has good metal they are not that important. The sides overlay and can be held with a sheet metal screw.