W2PFY
Contributing
Member
 Offline
Posts: 13290
|
 |
« on: November 08, 2010, 07:35:46 PM » |
|
I need to take the front panel off my 390A to put in one screw that clamps one of the gears in place. There is no way I can do it without some dissemble. I have been looking for hours and I guess I haven't hit the right Google wording to find it.
It looks like a nightmare in the making but it may be simpler than I think.
Any thoughts would be appreciated.
|
|
|
|
|
Logged
|
The secrecy of my job prevents me from knowing what I am doing.
|
|
|
N8ETQ
Member
Offline
Posts: 791
Mort
|
 |
« Reply #1 on: November 08, 2010, 08:04:32 PM » |
|
Hi,
Its not too bad,
Unplug RX from wall
Set RX on the edge of the bench with FP hanging over the edge.
Remove KC, MC, Bandwidth , BFO and ANT TRIM Knobs.
Remove 4 screws from each edge of the FP (8 total)
Remove 5 smaller phillips screws 3 below the BW and BFO shafts
and the 2 above the local gain knob.
You should now be able to ease the FP off the shafts
and let it swing down.
I hope I didnt forget anything but it "Should" be easy.
GL
/Dan
|
|
|
|
|
Logged
|
|
|
|
W2PFY
Contributing
Member
Offline
Posts: 13290
|
|
« Reply #2 on: November 08, 2010, 08:11:20 PM » |
|
|
|
|
|
|
Logged
|
The secrecy of my job prevents me from knowing what I am doing.
|
|
|
|
WV Hoopie
Guest
|
|
« Reply #3 on: November 08, 2010, 08:14:56 PM » |
|
Google Y2K Manual. It is now on revision #3. Gud stuff in there all about the R-390A
wd8kdg
Craig,
|
|
|
|
|
Logged
|
|
|
|
N8ETQ
Member
Offline
Posts: 791
Mort
|
|
« Reply #4 on: November 08, 2010, 08:23:48 PM » |
|
BTW
Just a Hint for re-assembly, Loosen the bushing
for the PTO shaft. After you get the panel back on
put in all the screws and tighten that bushing last.
/Dan
|
|
|
|
|
Logged
|
|
|
|
W2PFY
Contributing
Member
Offline
Posts: 13290
|
|
« Reply #5 on: November 08, 2010, 08:25:52 PM » |
|
what type of tool is need to pull the large knob off, I mean to loosen the screws? are they hex or somethings else?
|
|
|
|
|
Logged
|
The secrecy of my job prevents me from knowing what I am doing.
|
|
|
N8ETQ
Member
Offline
Posts: 791
Mort
|
|
« Reply #6 on: November 08, 2010, 08:30:25 PM » |
|
T8 or T9 Torx (aka Bristol) what type of tool is need to pull the large know off, I mean to loosen the screws? are they hex or somethings else?
|
|
|
|
|
Logged
|
|
|
|
W2PFY
Contributing
Member
Offline
Posts: 13290
|
|
« Reply #7 on: November 08, 2010, 08:35:56 PM » |
|
Thanks, I have the tools, didn't want to strip something  |
|
|
|
|
Logged
|
The secrecy of my job prevents me from knowing what I am doing.
|
|
|
N8ETQ
Member
Offline
Posts: 791
Mort
|
|
« Reply #8 on: November 08, 2010, 08:42:41 PM » |
|
Thanks, I have the tools, didn't want to strip something HI Hi, I hope there not already.... That will ruin your day. /Dan |
|
|
|
|
Logged
|
|
|
|
W2PFY
Contributing
Member
Offline
Posts: 13290
|
|
« Reply #9 on: November 08, 2010, 09:03:37 PM » |
|
It need a new micro sw for the off/on but naturally, I'm not organized enough to have one. Maybe I can fix it somehow if it shows its ugly head when I finish pulling the FFP off.
|
|
|
|
|
Logged
|
The secrecy of my job prevents me from knowing what I am doing.
|
|
|
N8ETQ
Member
Offline
Posts: 791
Mort
|
|
« Reply #10 on: November 08, 2010, 09:17:24 PM » |
|
Google Y2K Manual. It is now on revision #3. Gud stuff in there all about the R-390A
wd8kdg
Craig,
Its here : http://www.r-390a.net/Y2K-R3/index.htm |
|
|
|
|
Logged
|
|
|
|
W2PFY
Contributing
Member
Offline
Posts: 13290
|
|
« Reply #11 on: November 08, 2010, 09:32:22 PM » |
|
Got all the knobs & screws out but for some reason, it seems to be hanging up in the bottom middle? Nothing seems to be holding it but I can't pull it off. Could it be those wiring harness screws that go into the clamps behind the FP?
|
|
|
|
|
Logged
|
The secrecy of my job prevents me from knowing what I am doing.
|
|
|
N8ETQ
Member
Offline
Posts: 791
Mort
|
|
« Reply #12 on: November 08, 2010, 09:44:47 PM » |
|
Sure could be, One small screw by the RF gain and one by the Phones jack, Can you get it to the ends of the shafts? Maybe a burr there. Got all the knobs & screws out but for some reason, it seems to be hanging up in the bottom middle? Nothing seems to be holding it but I can't pull it off. Could it be those wiring harness screws that go into the clamps behind the FP?
|
|
|
|
|
Logged
|
|
|
|
N8ETQ
Member
Offline
Posts: 791
Mort
|
|
« Reply #13 on: November 08, 2010, 09:48:37 PM » |
|
I guess I forgot to mention to loosen the "Zero Adjust" bushing so you can rotate that outta the way of the locking disk. It grips that disk like a car brake caliper so you can calibrate it. Just loosen the nut and you can rotate it off the disk. Sorry /Dan Sure could be, One small screw by the RF gain and one by the Phones jack, Can you get it to the ends of the shafts? Maybe a burr there. Got all the knobs & screws out but for some reason, it seems to be hanging up in the bottom middle? Nothing seems to be holding it but I can't pull it off. Could it be those wiring harness screws that go into the clamps behind the FP?
|
|
|
|
|
Logged
|
|
|
|
W2PFY
Contributing
Member
Offline
Posts: 13290
|
|
« Reply #14 on: November 08, 2010, 09:54:11 PM » |
|
|
|
|
|
|
Logged
|
The secrecy of my job prevents me from knowing what I am doing.
|
|
|
N8ETQ
Member
Offline
Posts: 791
Mort
|
|
« Reply #15 on: November 08, 2010, 09:59:30 PM » |
|
Nice, Clean up all those switches, lube it up good, and you should be all set for another couple decades.. 73 /Dan |
|
|
|
|
Logged
|
|
|
|
|
WV Hoopie
Guest
|
|
« Reply #16 on: November 09, 2010, 12:08:34 AM » |
|
Gonna need a #8 Bristol spline wrench to play games with these 85 lb receivers, they are NOT torx! Only one size needed.
wd8kdg
Craig
|
|
|
|
|
Logged
|
|
|
|
W2PFY
Contributing
Member
Offline
Posts: 13290
|
|
« Reply #17 on: November 09, 2010, 12:34:15 AM » |
|
Gonna need a #8 Bristol spline wrench Gee I used the torx # 9 and had no problems. when I look at them very close it looks like the torx and the head of the screw match perfectly. So anyhow, I looked it up and I can see the difference. The head is so small on one screw from my 390, that I'll look at tomorrow when I get my spy glass out to see how it matches up with the examples listed in the link below. http://en.wikipedia.org/wiki/List_of_screw_drives |
|
|
|
|
Logged
|
The secrecy of my job prevents me from knowing what I am doing.
|
|
|
|
