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Topic: Need suggestions to troubleshoot Hadley's (Read 499 times) previous topic - next topic

Need suggestions to troubleshoot Hadley's

My Hadley's performed normally until yesterday.

I found the solenoid/switch under the dash. When I depress the horn button the solenoid clicks but nothing happens. All the wires are tight. Could the solenoid be bad even though it clicks? It looks fairly new and had 'Made in China' on the side.

Any suggestions greatly appreciated.

Jeff
1993 U300 40ft GV SE
Build # 4344

Re: Need suggestions to troubleshoot Hadley's

Reply #1 –
Quote from: Jeff & Sandy –
Could the solenoid be bad even though it clicks?

Jeff,

Yes it could still be bad.

I would pull the air line of the discharge side of the solenoid and then push your horn button.  Now if the solenoid is working it will dust the underside of the dash so wear safety glasses.  If you have air pressure then you may have something built a nest in the trumpets, not likely overnight though.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Need suggestions to troubleshoot Hadley's

Reply #2 –
If the solenoid is sticking, a few drops of lightweight machine oil in the inlet port may get it working until you can get a new one. Best to use an oil approved for pneumatic tools and not a penetrating oil such as "mystery oil" as it can cause the seals to swell and the plunger to stick worse later on.
Justin & Cathy Byrd
1995 U280 "Old Faithful"
36' Build #4673
C8.3 Cummins
Allison MD3060R 6 speed - retarder
Powertech 10KW  4cyl Kubota

Re: Need suggestions to troubleshoot Hadley's

Reply #3 –
All set, thanks guys. Picture coming in a sec....
1993 U300 40ft GV SE
Build # 4344

Re: Need suggestions to troubleshoot Hadley's

Reply #4 –
This is what was clicking when I pressed the horn button, not the solenoid. This was wired over to the Hadley Solenoid. A wire on that was loose, easily fixed, back in business.

Thanks as always.

1993 U300 40ft GV SE
Build # 4344

Re: Need suggestions to troubleshoot Hadley's

Reply #5 –
The Hadley twins were always trouble.....O'Brien twins much less so....... ( I heard the  Mom had a talk with them ) My shop teacher advised me.... lol
Hans & Marjet
1995 U300 "Ben" (#4719)
3176B Cat,4060HD,Jake
SKP#139131
Motorcade#17579
2006 Honda Element (towed)

Re: Need suggestions to troubleshoot Hadley's

Reply #6 –
Other brands mounted the Hadley's in the front cap.  No dirt. No wind noise.
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: Need suggestions to troubleshoot Hadley's

Reply #7 –
If the Hadleys are going bad ( sounds like they are not), why not put in a train horn ?                >:D
Ted & Karen
2001 U270 36' - sold after 12 years full timing