Can You Repair Happijac 4150?

Topic: iii Calendar month erstwhile Happijac 4150 Fail

Posted By: Hodag1 on 11/19/11 07:58am I have a iii calendar month old truck camper (bought new) which has but been on and off the truck 3 times. When I went to remove it for the winter, only 3 of the 4 legs went down. The fuse was blown on the 4th leg. I replaced the fuse and information technology immediatly blew when I tried to apply it. I called Happijac and the gal told me to mannually creepo the jack upwards and downwardly every bit it had probably just bound upward and information technology would be fine. I did that and replaced the fuse which blew again upon use.

I called Happijac again and was transfered to Lance who told me they had some "wiggy" ( bad) motors, a part they do not make. He is issuing a call tag so I tin can transport it back for warranty repair. He told me to remove the 2 bolts and disconnect it at the rectangular box. On the 2 front jacks, unlike the rear jacks, in that location is no rectangular box but instead the disconnect plug is inside the camper. Lance offered to sell me iv boxes which I declined.

I besides mentioned that when the legs retract the outer tube scrapes the paint and the markings including the danger indicator off the inner tube. When I removed the motor, the superlative of the tube was gouged and rusted. He said someone would call me dorsum to discuss these concerns. I have not received a render call.

Has anyone else had a failed/seized motor on a relativly new 4150 electrical jack?

Posted By: GregTheCampingGuy on xi/19/xi 08:53am Sounds like a bent extension tube. Was there an accident loading or unloading the camper prior to this? I don't remember the warranty will cover that...

Posted By: bobndot on 11/19/11 09:29am Anything that slides in and out, goes up and down and subjected to road grime and dirt or having a fused motor is subject field to malfunction.
Some work , a lot dont . I fell into the latter catagory having 3 malfunctions in my first year . Afterwards kicking the topic around with dealership owners and mechanics who deal with these things on regular basis and not with 1 or a few campers, information technology has been suggested to me to leave it on the truck.
Then that's what i do , exit it on the truck, especially while away from home , as in the middle of knowhere with no style to become assistance.
I heard of someone who carries a spare jack . Another boyfriend always tows a trailer and would rig his trailer tongue jack by strapping it to the bad tc jack to lift information technology in an emergency situation.

Posted Past: Glacier D on 11/19/11 09:39am There is a reason why they are chosen CrappiJacs. I am not a fan of my 4600 either, just poor quality and had the aforementioned problem with the paint from the first.

2022 Dodge Ram 3500 4X4 Coiffure Cab/LB, Rancho RS9000XL, Stable Loads, Superhitch and FastGuns. 2009 Eagle Cap 1050, Hickory interior with on-board generator, A/C and Honda EU2000

Posted By: tkcrawford on eleven/19/11 09:41am I had the aforementioned thing happen this summer to 2 of my 4600 jacks (virtually identical to your 4150). When the first 1 (a forepart jack) bound up information technology was sent back to Happijack and they determined that it was bent. I couldn't imagine how that could have happened merely I had no alternative but to take their diagnosis. Withal, to their credit, Happijack replaced it on a "proficient-will" warranty for which I was very thankful because up here in the Great White Northward, by the fourth dimension you buy a new jack, ship it up here, pay customs and duty and taxes, a $350 dollar jack in the Usa becomes a $600 dollar jack in Canada.

Subsequently that, I was nigh paranoid about these jacks. I was extremely careful with raising or lowering the camper, making sure everything was straight and level with no sideways forces. Merely all my carefulness didn't matter.

One morn later in the summer, every bit we were breaking army camp, another one (a rear jack this time) bound upwardly as I was retracting it. It had worked perfectly the night before but spring up tight the side by side morning, scraping the paint off of the inner tube equally information technology tried to retract. Again information technology was shipped to Happijack and was told, again, that it was bent and that they would non warranty this one.

I can't really blame Happijack for not replacing the second one merely I also cannot imagine how information technology got bent in the offset place. Later on the first failure, I couldn't have been any more than careful and gentle with the jacks if I had taken them to bed with me. I'thou certain I had done nada that could accept bent the jack. What happened to it is a mystery. All I can do now is to become even more cautious with these jacks and hope nothing else happens to any of the others.

I don't have any answers for the OP merely I was struck by the similarity and idea I would share my experience. Sometimes, I judge, s**t but happens. Weird or what?

2022 Ram Laramie 3500 SRW, CTD 385/900, Aisin. Coiffure Cab, 4x4
2022 Wildcat Maxx 28RKX

Posted Past: 3 tons on 11/nineteen/xi 09:43am One of my HJ 4600's had the same type problem. Turned out to be a bad motor winding. When you phone call HJ you need to ask for Gary. He'll take immediate care of you.

Posted By: Pete_k on 11/xix/xi 09:53am Gauge I'one thousand lucky but vi years and always unload the camper. And would approximate its been loaded and unloaded 60 times or so per year. Mine has held upward, they did start making dissonance but oiled them and dorsum to working again.
Pete

2022 Ram Large Horn DRW
2022 Eagle Cap 1200
2022 Landmark Key Largo
2005 Chevy Kodiak c5500 Cummins v.ix/Allison Trans

Posted Past: Hodag1 on 11/19/xi 09:58am There were no accidents,loading/unloading etc.

I was told Gary would requite me a telephone call.

Also, of the three remaining jacks, 1 is significantly faster than the others which requires my diligence to go along the charge per unit of motility similar.

Posted Past: RockyRoadCamper on eleven/23/11 01:55pm At that place are issues with almost all equipment. The to the lowest degree of our worries are the paint scrapping off the Happijacks. Wax with paste wax occasionally.

Happy Camping from KY

Posted By: Hodag1 on xi/23/11 02:06pm Gary from Happijac said the paint should not screape off from contact between the inner and outer tube. He is sending me 4 new jacks and 1 new motor assembly under warranty.

Posted By: FF1063 on 11/23/11 02:09pm *********

* This post was edited 12/10/11 10:04am past FF1063 *

Posted By: Fine art Schlangen on 11/23/11 07:13pm Wow...... I only bought a 06 NL with HJ 4600 on them... I had to supersede my right rear jack this summer for the same thing.. I just marking information technology as a new camper owner.. and Possibly I screwed upward.. but at present I'm wondering.. This jack seem to be the dull i when lowering it when off my truck... I was thinking about buying a stable elevator system this coming summertime, my wife and I will be out westward anyway... has anyone had issue with this systems.... tks ART

Posted By: covered wagon on 11/24/11 09:04am I'm tellin you guys... H2o gets down within those white cups and rusts the lesser elect. motor bearing. Keep'em covered if you lot can.

* This post was edited xi/24/eleven xi:43am by covered railroad vehicle *

Posted By: bigfootford on xi/24/11 12:48pm Wow, I take had our BF/HJ's for almost 12 years.
The only major issue I have had is bounden due to lubrication. I take totally disassy my HJ's ii times and lubed.

The paint on the exterior of the jacks have been chipped from road debris. I have had to sand various areas down and repainted

No electrical issues yet.

I use my jacks every fourth dimension we stop over night. We have traveled over 130,000 miles with this camper over the xi years nosotros have had it.

I practice have my front jack motor assy turned in so when it rains they become minimal water on them. Can not practice annihilation about the rears.

Mayhap the older jack motor assy were mfg differently.

Jim

2000 2500 nine.6 Bigfoot,94 F250, Vision 19.v, Mich 245/70XDS2'due south, 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, Moving ridge-3 rut.

Posted By: covered wagon on 11/25/11 12:18pm

bigfootford wrote:

Wow, I have had our BF/HJ'southward for virtually 12 years.
The simply major issue I take had is bounden due to lubrication. I accept totally disassy my HJ'due south 2 times and lubed.

The pigment on the outside of the jacks have been chipped from route debris. I take had to sand various areas down and repainted

No electrical issues withal.

I use my jacks every time we stop over night. We have traveled over 130,000 miles with this camper over the xi years we have had it.

I do have my front end jack motor assy turned in then when it rains they get minimal water on them. Tin can not do annihilation about the rears.

Maybe the older jack motor assy were mfg differently.

Jim

I gauge my data is for those who have their campers stored out in the pacific northwest climate.. [emoticon]

Posted Past: BradW on 11/25/xi 01:17pm

Hodag1 wrote:

Lance offered to sell me 4 boxes which I declined.

I didn't realize that Lance had started using Happijac camper jacks. They used to just use Atwood. Oh well.

Brad

Wake Upward America
2022 Lance 1062 and 2022 F-350 CC PSD 4X4 DRW
Tembrens, Rear Roadmaster Sway Bar, Torklift 48" Extention and 30K Superhitch
Our New Lance 1062 Truck Camper Unloading at Dealer Photos

Posted Past: Gary3 on xi/25/11 05:59pm I didn,t think they did either but they do use there slideroom mechanism for a long time.

Gary Lance 1191 solar Gen.

Posted Past: Hodag1 on 11/26/11 06:15am Brad,
The Lance I was talking about is an employee at Happijac

Posted By: BradW on xi/26/eleven 07:01am

Hodag1 wrote:

Brad,
The Lance I was talking about is an employee at Happijac

OK. Thanks for the clarification.

Brad

Posted By: nwjetboat on 11/26/eleven 09:46am

covered railroad vehicle wrote:

I'm tellin you guys... Water gets down inside those white cups and rusts the lesser elect. motor bearing. Keep'em covered if you tin can.

Comprehend mine every winter with bread sacks and condom bands. This was after I lost right rear to motor seized up. I too took the time and some silicone RTV and sealed the wiring as it goes into the motor housing. I am at vii years now and just lost the 1 motor. That motor got dripped on a lot from the lean of the RV pad.
Gary at Happijac was good to deal with.

2022 Ram 3500SRW, CTD AISIN, B&West companion 2022 Thousand Design 303RLS

Posted By: covered wagon on 11/26/11 09:51am Me too... only had one motor sieze up in almost the approx 7 years I wasn't covering mine.

Posted Past: DWeikert on 11/26/11 02:11pm Just to add some other data point. I sent one of my HJ 4150 motors back for a warranty repair this spring. It but blew fuses without trying to turn, but jack moved freely using the hand crank. While unloading this fall the same motor seems to be seized and just blows the fuse, again jack turns complimentary by paw. Oasis't contacted HJ for another repair yet. The other iii motors are all fine and this motor was the ho-hum one of the 4 when information technology was working.

Dan
2008 Chevy D/A 2500HD ECSB
2010 Northstar 8.5 Charlatan

Posted By: mbeggs on 12/01/11 07:59pm I just plant the same problem today, 12/1/eleven: water in the motor housing. Price me $150 bucks at the local RV shop for them to tell me that they encounter this blazon of problem all the time. New news to me. Have yet to contact Happijac but at 5 years old don't know what they are going to say. Does anyone have the schematics on the model 4150 jacks? Want to tear the remain 3 autonomously and run into how much h2o is in them, every bit the dealer wanted some other $250 to do it. I can't assistance simply think Happijac has heard of this problem. Have they offered a fix? I was told by the tech that worked on one that the O-ring at the top of the motor housing is not suffcient.I tin gear up the other three with some silicon just sure think that Happijac should have a fix FOR their lack of proper engineering. Thoughts?? ~Mike B. in the "Wet" PACIFIC NORTHWEST.

Posted By: covered wagon on 12/01/11 09:29pm

mbeggs wrote:

I just institute the same trouble today, 12/1/11: water in the motor housing. Toll me $150 bucks at the local RV shop for them to tell me that they see this type of problem all the time. New news to me. Take yet to contact Happijac just at 5 years quondam don't know what they are going to say. Does anyone have the schematics on the model 4150 jacks? Want to tear the remain 3 apart and meet how much water is in them, as the dealer wanted some other $250 to do it. I can't help just think Happijac has heard of this trouble. Accept they offered a ready? I was told by the tech that worked on one that the O-ring at the acme of the motor housing is not suffcient.I can fix the other three with some silicon only sure think that Happijac should have a prepare FOR their lack of proper engineering. Thoughts?? ~Mike B. in the "WET" PACIFIC NORTHWEST.

HappiJack won't tell you lot this merely yous need to blow the white 'cup' covers off with air with an air nozzle, blow out any wet out of the electrical motors' on the electrical motor steel housing cry pigsty, and so eject in four short blasts of light motorcar oil in the cry hole to lube the lower bearing. That'south the one that fails from wet because it'south sitting in a niggling bowl in the steel housing and cannot empty any moisture.

The electric motors look just similar mini starter motors when uncovered and you'll see the tiny weep hole at the bottom sides.

The problem is the white covers fit so tight that it holds moisture and at that place is no place for it to go except into the bearing.

All iv of mine had signs of moisture when I first took them off, simply, since doing this footling trick every twelvemonth they have been dry inside. You need to reseal the lip with caulking before sliding them cups back on. Also wipe down the outside of the motor steel housing with a little oil too.

I cover the jack heads later on servicing for wintertime.

Posted By: catz on 08/08/12 05:14pm Pitiful this response is so late, but, I had this happen twice to my Happijac. It was the same one each time. The jack would be seized up, the fuse to that jack would be blown, but I could move the jack up and down manually. And so this is what I did to go it to start working again with the electrical part (the remote). It sounds crazy and makes no sense to me but it worked twice. I stumbled beyond the solution by blow. So give this a endeavour. It won't cost you a dime if you already have a rubber malet. Take the rubber mallet (using a prophylactic mallet volition prevent scratching or chipping of paint) and clunk the jack a few times in the midway down the jack. Then put in a new fuse and endeavour the remote once again. This has worked for me twice now. I know it sounds crazy merely it didn't cost me anything, I didn't have to remove the jack either, or call the dealer. Good luck