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Author Topic: Lubricateing a Happijac  (Read 1407 times)

joeds

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  • Posts: 6
Lubricateing a Happijac
« on: May 03, 2016, 08:32:32 AM »
My camper has not been used for 3 years now. I need to go on a trip next week and am afraid the units will give me grief when putting it on my truck. I have thought about removing the jack and extending the leg, drilling a small hole in the middle of the housing and giving it a good dose of WD40 or Lubriplate as a temporary measure. Any reason why this would not be advisable?
2009 Quantum 365SST, 2002 Bigfoot, 2006 Dodge DRW 2WD

PancakeBill

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  • Posts: 5040
  • Bill & Jolene/USA 97 Southwind 35P
    • WorKamping in Yellowstone
Re: Lubricateing a Happijac
« Reply #1 on: May 03, 2016, 08:45:15 AM »
I assume it is seeing low on a frame?  Before doing any drilling, I would just try exercising the jacks.  Lift it up, set it back down, do this if you can a couple times.  Din't sweat it too much.  Are these manual or electric or hydraulic? 

HappiJac stuff I had were just tie downs.
Bill & Jolene W & Koda

Old Faithful, Yellowstone Association Bookstore
1997 Southwind 35P
Toads: 1997 Honda Accord & 1986 Westfalia
FMCA F-401354
1995 OMI Dobro F-60
WA1RI

PancakeBill

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  • Posts: 5040
  • Bill & Jolene/USA 97 Southwind 35P
    • WorKamping in Yellowstone
Re: Lubricateing a Happijac
« Reply #2 on: May 03, 2016, 08:50:06 AM »
I just looked up HappiJac lifts, the stuff needing lube is all internal, I would just lift it, I would not suggest drilling any holes at all.  There is a good website and a contact tab, maybe exercise that first.
Bill & Jolene W & Koda

Old Faithful, Yellowstone Association Bookstore
1997 Southwind 35P
Toads: 1997 Honda Accord & 1986 Westfalia
FMCA F-401354
1995 OMI Dobro F-60
WA1RI

joeds

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  • Posts: 6
Re: Lubricateing a Happijac
« Reply #3 on: May 03, 2016, 11:22:20 AM »
I just looked up HappiJac lifts, the stuff needing lube is all internal, I would just lift it, I would not suggest drilling any holes at all.  There is a good website and a contact tab, maybe exercise that first.

It is sitting on blocks right now. The jacks are electric and are on a 2000 Bigfoot. There are Soooo Manyyyyyy reports of these older jacks failing while lifting a load that I'm a little paranoid. PS they are nicknamed "crappijacs" on many posts. Kidding aside, a 15 year old threaded screw shaft is bound to have lubrication issues, but Happijac has made no provisions for maintenance. Complete disassembly is an absolute major deal. Especially for 4 of them.
2009 Quantum 365SST, 2002 Bigfoot, 2006 Dodge DRW 2WD

PancakeBill

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  • Posts: 5040
  • Bill & Jolene/USA 97 Southwind 35P
    • WorKamping in Yellowstone
Re: Lubricateing a Happijac
« Reply #4 on: May 04, 2016, 08:09:12 AM »
OK, so yours are not the recirculating ball style.  If you can remove the jack and run them up and down I would do it.  I had a different kind on mine.
Bill & Jolene W & Koda

Old Faithful, Yellowstone Association Bookstore
1997 Southwind 35P
Toads: 1997 Honda Accord & 1986 Westfalia
FMCA F-401354
1995 OMI Dobro F-60
WA1RI

joeds

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  • Posts: 6
Re: Lubricateing a Happijac
« Reply #5 on: May 04, 2016, 01:48:59 PM »
Well I found a great tutorial on how to overhaul one and I did it on one jack. Mercy what a mess it was in. Rust rust everywhere. There is no seal between the motor housing and the jack head and water gets in with nowhere to go. It wasn't fun but interesting!

Here is the link.

http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/22881036.cfm
2009 Quantum 365SST, 2002 Bigfoot, 2006 Dodge DRW 2WD

DesertMax

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  • Posts: 74
Re: Lubricateing a Happijac
« Reply #6 on: May 30, 2016, 03:18:07 PM »
I think mine squeak when I drive over bumps in the road..  Is this possible?  My truck is squeak free and with the TC on...  It is squeaking at me and I hate it!!!

 

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