summitsrule
Alberta, Canada
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Joined: 08/24/2010
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Paoli wrote:I have covers on my jacks to prevent them from getting dirty.
Buy some covers that plumbers use to insulate water lines.
Cut them to proper length and used plastic straps to hold them in place.
I replace them every two years, they are cheap to buy.
Here in Canada they are available at Canadian Tire's hardware stores. (Plumbing section).
It keeps your jacks clean and protects the paint.
Do you have a picture of this?
2009 Dodge 3500 DRW 6.7L auto 4wd
2009 Okanagan 117DBL
2002 Maxum 1800SR
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summitsrule
Alberta, Canada
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KKELLER14K wrote:Ok...this may not be a direct reason why the jacks bind, but I do agree that they will bind up if they flex to far...have you seen my post on supporting the front jacks???....take a quick look at this....this is a mod I did to mine. http://www.motorhomemagazine.com/boards/........d/24021668/gotomsg/24025277.cfm#24025277
Now that I stiffened up the front,I have less binding and the camper doesn't (walk) along and shift so bad. It would work even if you didn't have the swing out brackets. I have said this before and I'll say it again....A major flaw with the Happijacks is that you can run them in pairs side to side but not in pairs front to back.
Good idea. I was thinking this could lead to an issue too. I now have about 20 items to upgrade on my few month old camper, almost like work now instead of fun....
FYI, my Happijacks work in pairs side to side or front to back. Maybe there is something wrong with your control board, or maybe you can upgrade it to a newer model that allows this feature? Just a thought.
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KKELLER14K
BEAVERTON OREGON
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Joined: 12/15/2006
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No way summitsrule!!! What controller do you have??? Year ,make and model of that system you got.. you can help me out and some others here. I hate mine for that reason ...I cant run in pairs either both front or both rears at the same time... only side to side. It twists my TC something fierce. I would upgrade it right now...researching as I post this...thanks a bunch!
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Super_Dave
Harrisville, UT
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I just use all up or all down once I've adjusted the bubble levels in both directions.
Truck: 2006 Dodge 3500 Dually
Rig: 2018 Big Country 3155 RLK
Boat: 21' North River Seahawk
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bigfootford
Fair Oaks, California
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Joined: 12/03/2002
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KKELLER14K wrote:No way summitsrule!!! What controller do you have??? Year ,make and model of that system you got.. you can help me out and some others here. I hate mine for that reason ...I cant run in pairs either both front or both rears at the same time... only side to side. It twists my TC something fierce. I would upgrade it right now...researching as I post this...thanks a bunch!
Wow, I have not heard this before. My HJ system/wired remote/mgf in 2000, will perform:
All up
All down
Any one at one time
Both rear, together, even if I have a rear, one side going down and I intermittently press the other rear down it will go down as I depress the down button.
Both fronts work just like the rears.
One side of the camper front and rear together but has to be the same direction.
I can not cross though...like drivers front and passenger rear...
You should call HJ and ask them if your operation is normal..
Jim
2000 2500 9.6 Bigfoot,94 F250, Vision 19.5, Mich 245/70XDS2's, Bilstein shocks, air bags/pump, EU2000, PD 9260,Lifeline 100ah, 200W. solar, Morningstar Sunsaver 15A/ display panel, Trimetric, Delorme/laptop, Holux gps rec,led lights, Wave-3 heat.
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bigfootford
Fair Oaks, California
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I'm writing another post to ask a question:
If you depress the button to make one rear jack go down and you intermittently depress the other rear jack button down what happens?
Does the jack that is going down stop?
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Super_Dave
Harrisville, UT
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bigfootford wrote:I'm writing another post to ask a question:
If you depress the button to make one rear jack go down and you intermittently depress the other rear jack button down what happens?
Does the jack that is going down stop?
My experience is that the only way to get both working at the same time is to press them similtaneously. If I have one button pushed for constant movement, pulsing a second button doesn't do anything.
Since our control modules are programmed to only operate for 60 seconds without shutting off, stopping to make a minor one leg adjustment resets that clocks and it won't timeout on you anyway.
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MTBob
Montana
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Interesting series of recent posts re: jack leg alignment and jack extension/retraction speed. A couple thoughts:
- Think of the jacks as four posts connected to the corners of a box. Now extend two of the rear posts (jacks). The two front posts (jacks) are going to tilt in parallel with the rear jacks and cause a crabbing action at the feet, both front and rear because, as the box tilts, the horizontal distance from foot to foot / front to back is increasing as the rear of the box raises.
- It seems to me that, by design, the jacks will all operate at different speeds no matter what we do to lubricate the screws and legs. The reason is variation in the voltage drop in the dinky wires that go to the jacks. So, when you couple variations in voltage to each of the jacks and the likelihood that they are operating with different friction, I think the jacks will always be out of sync and operate at different speeds.
Bottom line: the jacks will always crab, no way around it except to try to raise the entire camper (box) upward small amounts at a time to reduce the tilt. And, the jacks will always operate at different speeds, thus supporting the camper with different loading on each of the jacks. When loading I stop periodically to listen to the "groan" of each jack as I test it to see if the apparent loading is about equal, and adjust them accordingly.
Any way... that's my thinking on HJ operation... and I could be wrong.
Bob
2002 10-2000RR Northern Lite
2008 Chevy 3500 DMAX, SRW,
2001 Lund 1700 Fisherman
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summitsrule
Alberta, Canada
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Joined: 08/24/2010
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KKELLER14K wrote:No way summitsrule!!! What controller do you have??? Year ,make and model of that system you got.. you can help me out and some others here. I hate mine for that reason ...I cant run in pairs either both front or both rears at the same time... only side to side. It twists my TC something fierce. I would upgrade it right now...researching as I post this...thanks a bunch!
I looked at the main module for the system, can't really see any numbers on it. Does anyone know what I should be looking for? Would like to help you guys out, but don't know if I can.
I did however look over the manual on Happijac's web page. It says if you double click the buttons for the front jacks, it will run both on that side. I did not know this. Whenever I need to run 2 jacks at a time (either on same side, or both fronts or rears) I just press both the buttons for those jacks. I know I can't go up on one and down on the other, but I can go up or down on any two at the same time, except opposite corners.
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Super_Dave
Harrisville, UT
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Based on the prescribed 3 in 1 oil in the socket, how in the hell are you supposed to get oil to go down that small hole?
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