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Topic: Question about HWH jacks. (Read 753 times) previous topic - next topic

Question about HWH jacks.

Just called HWH.  She says it will be 2 weeks before the tech dept can call me. (very busy)
'94 - U225 - Let the jacks down on a my gravel drive (yep - wrong).
They extended, then the coach rocked backward.  The bottom of the jacks were pointing toward the front of the coach.
I was able to retract them.
I was able to extend them again.
I'm assuming now that I need 'support' under the 'feet' any time they are not on concrete ?
THE QUESTION:  What all did I screw up ?
Thank You for your help................~JL~........ :-[ .........
1994-GV-U225
5.9 Cummings
Build #4503
Near Springer Oklahoma

Re: Question about HWH jacks.

Reply #1 –
With the HWH kickdown jacks you may or may not have done any damage.  Crawl under and check (it is safe-- no air system to possibly fail).  It is quite possible that they just went to the "stow" position, even though the pistons were still extended.

And do NOT every get the rear wheels off the ground.  If you must park/camp where it is that out of level, use boards under the wheels to get closer to level and/or park "nose down".
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Question about HWH jacks.

Reply #2 –
On our 93 u225 I did the same thing...twice...i know, i know...had the coach another two years and never had a problem with the jacks.

And do NOT every get the rear wheels off the ground  DID that one also...BUT only once and caught it quickly.. Not to many things I haven't done wrong.....but....sure learned a lot...
We are only strangers until we meet; however, some of us are stranger than others

Re: Question about HWH jacks.

Reply #3 –
Those jacks are designed for roll-off. No harm done.
1994 U280, Build 4490
Deming, NM.

Re: Question about HWH jacks.

Reply #4 –
I did the same once on my old 93 GV and bent a piston shaft. Took it all off and had another shipped out. All ok after that and never did it again. I was on a bit of a slope and rears came off ground-oops
John h
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

Re: Question about HWH jacks.

Reply #5 –
Thanks Guys,
It seems to be OK.  Have 2X6's under the front,  back is so low can't get anything under them, maybe some 1/4" steel plate ?
I'm not sure what happened,  don't believe any tires came off the ground,  it was fairly level, the back just needed to come up a little.
I think maybe the gravel started giving way and the jacks kept trying to get the back up ???
Thanks Again & It's level and seems to be OK...............~JL~........ ^.^d
1994-GV-U225
5.9 Cummings
Build #4503
Near Springer Oklahoma

Re: Question about HWH jacks.

Reply #6 –
One more thought.
The thing that worried me the most:
The coach rocked backward - pushing the jacks the wrong way............~JL~
1994-GV-U225
5.9 Cummings
Build #4503
Near Springer Oklahoma

Re: Question about HWH jacks.

Reply #7 –
exactly the same as I had reported, but there is room for them to do that if I remember right, so you may be ok
John H
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

Re: Question about HWH jacks.

Reply #8 –
I carry a large capacity screw jack for the times I can't slide my large 1-1/2 thick wooden pads under the rear passenger jack. I place the screw jack under the hitch receiver and crank it up just enough to get my pad under the jack pad. Never raises the tires off the ground but just raises the chassis enough.
Nitehawk,  Demolition Lady, & our NEW master, Zippy the speeding BB cat.
1989 Grand Villa 36' ORED
Oshkosh chassis, 8.2 DD V8
2006 Saturn Vue AWD

Re: Question about HWH jacks.

Reply #9 –
My question about HWH jacks is: Where is the reservoir? I've been told that it's at the front under the hood on the passenger side but I cannot find anything that looks like a hydraulic pump/reservoir there. Perhaps if someone has a photo I could figure it out. :P

Craig
1993 U225 36' Unihome GV with PACBRAKE exhaust retarder, Banks Stinger and Solar Panels.
Toad: 1999 Jeep Wrangler 2-door soft-top.

"No one has ever had to evacuate a city because the solar panels broke."

Re: Question about HWH jacks.

Reply #10 –
Craig,

Look under the coach, just behind the front bumper and just off center to the passenger's side.

Much easier to access if you remove the couple of screws holding in the right side grill.

Brett
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Question about HWH jacks.

Reply #11 –
Craig,

The thing is a flat sided welded box thing, not a "normal" looking tank.  Mine had the pump near, and about a 1" cap to remove for filling.  As Brett suggested, remove the grill to be able to do much work or check and refill.
Dave Cobb
Buckhorn Lake Resort The Club, #6202, Kerrville TX
check the map.  I do rent it out when I am traveling!
2001, U320, 36' #5887, in Kerrville, FT Club #17006, (7/23 to present)
2024 Jeep Grand Cherokee L, Summit, white
EX: 98 U295, 36' #5219, (mid door), (4/13-10/23)
EX: 93 U225, 36' (4/11 to 4/13)

Re: Question about HWH jacks.

Reply #12 –
Dave and Brett... thanks. The description and location will help. I've been looking at the far side (passenger) for it. I'll take another look today if I get a chance. Turns out I have to do that 4-letter-word-ending-in-K thing today.

Craig
1993 U225 36' Unihome GV with PACBRAKE exhaust retarder, Banks Stinger and Solar Panels.
Toad: 1999 Jeep Wrangler 2-door soft-top.

"No one has ever had to evacuate a city because the solar panels broke."

Re: Question about HWH jacks.

Reply #13 –
Exercise them well and keep them clean!!!  My two rear jacks (HWH AP8125) are completely seized up and need replacement.  A pair cost $1700, and they are remaned, not new.  Just got the word yesterday.  Going to go without until I find a deal on ebay or somewhere!!!
1994 U225
build #4514

Re: Question about HWH jacks.

Reply #14 –
I exercise but don't clean them.  Haven't really noticed that they need cleaning.  What is the proper procedure?  I have had to take one off to have a crack in the housing welded.  Was leaking fluid during use only and I thought it was a fitting or the cylinder itself but hydraulic repair shop found the housing cracked.  Taking one of those heavy jacks off and reinstalling a bit of work.
Dwayne Keith
1992 U240
3116/MD3060

Re: Question about HWH jacks.

Reply #15 –
Dwayne
Just wash the dirt off of them with a high pressure water spray.  Wipe the piston shaft off with WD-40.  You can wipe them down with Dexron or Multipurpose transmission, but you get that when they are operated..  Do not use silcone spray or anything that will build up a coating on the shaft!!!

My HWH remanufactured RAP8125 jack assembly  should be around $550 dollars plus shipping each.  Can add a hour labor to that for installation.  That is just one side!!!  For both, I looking at $1100  plus shipping, plus labor.  Spent enough money this year on her.  So we will be going as she sits.
1994 U225
build #4514

Re: Question about HWH jacks.

Reply #16 –
The repair shop fixed it for much less than that.  Take them into a hydraulic shop.  You might be surprised that they can totally rebuild it way cheaper.
Dwayne Keith
1992 U240
3116/MD3060

Re: Question about HWH jacks.

Reply #17 –
Quote from: Dwayne –
The repair shop fixed it for much less than that.  Take them into a hydraulic shop.  You might be surprised that they can totally rebuild it way cheaper.
Have had two shops tell me no way, that I need to replace them cause they are completely seized up.  And neither one had anything to do with camping world.
1994 U225
build #4514