Super Power Jack Owner's Instructions Have Arrived!
My Super Power Jack Owner’s Instructions arrived today from maker…
H&H Engineering, Division of Barker Manufacturing Co.
Markdoanne… Thanks for advising me to check their schematics…
I found the 30 amp slow blow fuse in their Installation and Wiring Diagrams.
See illustrations below and click on the images to see them enlarged.
Silvertwinkie… I was mistaken in my note to you where I said that my electrical panel case lists Circuit #6 for the Hitch Jack. I had actually read that in my 2007 Safari Manual. But closer inspection of my interior Parallax Power Circuit Breaker and Fuse Panel shows no designated breaker or fuse for the Hitch Jack!
Westfallia… Thanks for confirming that your Bambi is also wired directly to the battery and not to the internal fuse box.
All… This again is a good illustration of the importance of obtaining and reading all of the owner’s manuals, care and operating instructions, etc. for every piece of equipment in and on your trailer. I’m still waiting for Airstream to send me the twenty or so manuals that were not in my Delivery Case!
Conclusion… Current Airstream trailers such as mine are using a stronger H&H Super Power Jack, with a lifting capacity of 3500 lbs., and are wired directly to the battery using a 30 amp slow blow fuse.
So based on the posts here, it looks like the A/S documentation hasn't caught up with actual wiring practices.
I see in some of the schematics that the newer jacks take 20.5 amps. I guess that is why they don't wire them through the panel anymore and go direct to the battery.
I blew that fuse last night and didn't know it even existed. Like SilverGate I had no manual for the hitch in my AS documentation. The AS owners manual at least makes refrence to an inline fuse, so we searched and found the little yellow fuse holder. I got a regular 30 amp fuse at Wal Mart and the hitch is working again, but now I'll go find a stash of the slow blow fuses to keep in the trailer.
To make things even more confusing, I guess at the same time I blew the hitch fuse I also tripped the breaker labeled Bedroom-Converter. It took four tries over about 10 minutes before the breaker would hold. I guess the two were unrelated, but I just don't know.
Seems my local retailers don't carry the 30 Amp, 32 Volt Time-Delay Fuse. I've tried the usual suspects including the auto parts stores. They carry Littlefuse and Buss brand fuses, just not this fuse. Should it be so hard to find?
So when I replaced the GP-24 stock Interstate batteres with Lifeline 6VDC golf cart batteries, I scrapped the fuse entirely (which was giving me fits when it didn't make contact in the crappy stock fuse holder) and went with a 30 amp DC resettable circuit breaker. Just push the button if it trips, and you're good to go! Mount in inside the battery box..........
I continue to blow these fuses. Three yesterday while trying to unhook from my TV. I drove through rain, so moisture could be an issue? I don't know. I took the top off the jack to look for wires touching that shouldn't be and could not see anything obvious. I'm ready to spring for the circuit breaker, but wonder if I have a larger problem with the jack?
I continue to blow these fuses. Three yesterday while trying to unhook from my TV. I drove through rain, so moisture could be an issue? I don't know. I took the top off the jack to look for wires touching that shouldn't be and could not see anything obvious. I'm ready to spring for the circuit breaker, but wonder if I have a larger problem with the jack?
Billberk,
Sounds like you have other issues in the jack like a deformed drive gear or other binding problem thats causing the fuse to pop repeatedy. At this point, I would sugest a call to the manufacturer's tech support line and see if they can troubleshoot the problem with you over the phone.
Most companies' phone techs are very good at doing this.
Quick Links
Mount in inside the battery box..........
Linear Mode
