View Single Post
  #167  
Old 10-05-19, 02:08
David Dunlop David Dunlop is offline
Registered User
 
Join Date: Feb 2006
Location: Winnipeg, MB
Posts: 3,384
Default Receiver Socket, 7-Point Replacement Part 2

With the wiring loom released from the left side of the chassis, the Connector Socket Assembly should relax enough to sag down and you can carefully rotate the top edge towards you to expose the rear portion of the socket and the attached S5A Relay Assembly. You will see the thick, brown, phenolic resin backing plate for the connector, sandwiched under the base of the relay and the four spacer posts for the relay. First photo.

The two spacer post assemblies on the right hand side can be easily removed with a slot head screw driver and a ¼” very thin spanner. There will be a lock washer under the forward post hex nut and none under the rear one as there is a wiring connection there with a locking ring terminal. Once that hardware is removed, you can access the ¼” hex screw holding the connector in place to remove it with the same spanner. Second photo.

On the left side, things are a little bit trickier. These two post screws are spot welded in place on the connector mounting plate. The front hex nut has a lock washer under it. The rear one does not as it also has a wiring terminal located under it. Because the two screws are fixed on this side, the hex nuts will ride up the screws as you undo them. You need to apply some tension to the backing plate to keep it directly behind the hex nuts as you unscrew them. If you don’t, the nuts will ride up and jamb against the two round head slotted screws on either side of the relay return spring. Photo three.

Once you have the hardware removed, you have full, but careful access to the terminal strips inside the connector, for whatever maintenance you need to perform. In my case, in Photo four, you can see the broken screw and nut assembly roughly in the centre from the terminal the leaf connector had been broken away from. I also found a fine coating of dirt and oil inside the connector. I am almost certain the oil came from copious amounts of it being sprayed on the back of the Remote Receiver case when somebody drilled a series of holes under the Connector Socket to add a modern aerial coax cable socket. I found oil and metal shavings everywhere inside the case and lower parts of the chassis when first cleaning it up. The crud inside the connector was actually acting as a high resistance conductor and is likely the cause of the weird shorting out I was experiencing. Once everything was cleaned and replaced. The problems went away. Photo five,

When it comes to reassembly of the connector and relay assembly, get the backing plate portion done first with the two ¼” hex screws. Then replace the two right hand relay post assemblies, but only tighten the hex nuts a few turns onto their screws, leaving lots of wiggle room for the time being.

Then go to the left side of the relay, lever the bottom of the relay up enough that there is just enough screw thread for the front screw to catch the hex nut and run it down a couple of turns only. You still need the wiggle room.

Next, carefully slide the top spring loop off its stud at the top of the relay contact plate and let the spring drop to the right, over the hex nut you just installed. Then remove the round head slotted screw on the lower left side of the spring location. This will give you more access to get the rear hex nut started on its screw. Once it has been started, keep tension on the base plate of the relay to keep both hex nuts snug and alternate running them home, carefully to tighten them down, replace the round head screw and reconnect the spring carefully. You can then tighten the two hex nuts down on the right side of the relay.

Final step is to rotate the complete assembly back up to the rear of the chassis and replace the three mounting screws and tuck the wiring back in the left side chassis frame.

David
Attached Thumbnails
WS No. 52 Sockets, 7-Point 6.JPG   WS No. 52 Sockets, 7-Point 7.JPG   WS No. 52 Sockets, 7-Point 9.JPG   WS No. 52 Sockets, 7-Point 8.JPG   WS No. 52 Sockets, 7-Point 10.JPG  

Reply With Quote