Go Back   iRV2 Forums > MOTORHOME FORUMS > MH-General Discussions & Problems
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 11-09-2009, 12:00 PM   #1
Junior Member
Join Date: Oct 2009
Posts: 2
Stuck MWH Hydro Jack

I have a 2002 Newmar Kountry Star, Diesel pusher, air bags, MWH Hydro Jacks, just got it a month ago. Have been out several times with no trouble. This past weekend the left front jack would not retract. It will go down but not up. Others work fine.
I followed the procedure in the manual to manually release them by turning the T handle on the back of the valve counter clockwise but with no resolve. I always put blocks under the jacks so it was far enough off the ground to drive it home. With the Jacks down warning buzzer sounding off the whole way.
I am hoping someone has an easy resolution to this.
Thanks in advance.

AJack is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 11-09-2009, 01:34 PM   #2
Junior Member
Join Date: Nov 2009
Posts: 8
Have you tried to raise the jack with pressure under the foot? Next you can backoff the hydraulic fitting and let out some of the fluid out. Use caution, block the wheels, front and back, go easy releasing the fitting as there could be pressure there and the oil will squirt out hard. Wear safety glasses to protect your eyes. Sounds like a stuck valve (solenoid) and can be easily picked up at a snowplow repair shop, if in fact it has an electric/hydraulic pump.

danwright7 is offline   Reply With Quote
Old 11-09-2009, 05:48 PM   #3
Senior Member
Latitude's Avatar
Join Date: Aug 2007
Location: Gilford,Ontario
Posts: 1,050
Hi Jack

You need to Lube the Jack Shafts and do you have the newer type springs???

You will get a hundred different ideas and they will all work Some better than others!!!

I use (as recommended by Gary KD) Gunk Brand "Dry Lubricant" just spray it on no need to wipe off!! and It WORKS!!

'05 Kountry Star 3910 ISC 330 Cummins '08 Jeep Wrangler Four Door Blue Ox
Latitude is offline   Reply With Quote
Old 11-09-2009, 06:11 PM   #4
Senior Member
Martind4's Avatar
Join Date: Oct 2008
Location: Marshfield, WI
Posts: 431
We had one jack that was really slow to retract so I took the scissor jack from the Grand Cherokee to help it along and stop the alarm beep. Others have used a 2 x 4 as a pry lever.
An HWH tech at one of the shows told me to use WD-40 as a solvent, spray it on, then wipe it off to prevent a buildup. With your coach being a 2002 model, you might want to replace the springs. I think you can buy direct from HWH, replacement it easy, do a search on this forum for some neat tips.

Good luck!
Denny, Connie & Shadow (former barn cat made good)
2000 Itasca Horizon, Cat 3126B, Freightliner Chassis
Martind4 is offline   Reply With Quote
Old 11-09-2009, 08:54 PM   #5
Senior Member
Freightliner Owners Club
Join Date: Mar 2002
Location: Western WA
Posts: 965
I had a bad jack solenoid one time, opening the pressure release screw/"T" handle did nothing. I "cracked" the hydraulic line for the affected jack at the manifold and spring pressure retracted the jack. Have plenty of rags if you have to resort to that measure because it does get messy. It may be a last resort measure but it works and you do not have to endure the warning chime.
'07 Winnebago Journey 34H, ISB-02, MH2500
Toad - '08 Ford Taurus X
Blue Ox, Aventa
FleetMan is offline   Reply With Quote
Old 11-09-2009, 11:11 PM   #6
Senior Member
Jackm's Avatar
Workhorse Chassis Owner
Join Date: Nov 2005
Posts: 627
FleetMan has the right idea. If opening the solenoid valve doesn't lift the jack, disconnect the hose (that's opposite the solenoid valve that controls the problem jack). This will normally do the trick. If it doesn't, you most likely have a bad jack.

Jackm is offline   Reply With Quote
Old 11-10-2009, 06:33 PM   #7
tmspoon's Avatar
Tiffin Owners Club
Mid Atlantic Campers
Join Date: Nov 2009
Location: Coudersport, PA
Posts: 30
I had a jack on my old Itasca that wouldn't retract after it had been down for more than a few hours. Tried lubing the shaft, replaced the springs, didn't help. Finally started carrying a long section of pipe and just pried it back up. Never did find out what was causing the problem but at least we didn't have to listen to the damn bell for hours at a time.
Tom, Carole & Duke
Coudersport, PA (God's Country)
2009 Phaeton 42' QRH, Suzuki SX4 Toad
tmspoon is offline   Reply With Quote
Old 11-10-2009, 06:55 PM   #8
Senior Member
Join Date: May 2004
Location: Auburn, CA, Havasu, AZ & Mulege, BCS
Posts: 5,172
Backing the T-handle out should open the needle valve, but since you are doing that and the jack still doesn't come up, I agree w/the previous posters that an aggressive lube job on the jack shaft should be a first round attempt. If that doesn't work, its a bad jack and needs to be rebuilt or replaced.
Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
EngineerMike is offline   Reply With Quote
Old 11-11-2009, 11:15 AM   #9
Junior Member
Join Date: Oct 2009
Posts: 2
That's what I get for reading the instructions. According to the book the 2nd from the front was supposed to be the LF jack. Was working on it last night trying some of your suggestions, nothing worked. Cracking the line was the last resort.
I deceided to open all the T valves and ureka, the LF rose when I opened the 3rd from the front. I guess the moral is try them all if your not sure.
I haven't had the guts to cycle them down, guess I must.
Thanks for all your suggestions and moral support.
Keep your powder dry.
AJack is offline   Reply With Quote
Old 11-11-2009, 06:25 PM   #10
Senior Member
Brigadoon's Avatar

Newmar Owners Club
Coastal Campers
Join Date: Jul 2000
Location: currently in North Georgia
Posts: 1,066

I've had the same problem with both of my rear jacks- due to weakend springs. We've been on the road the last 6 months and have not had a chance to get new springs, therefore, I went to Walmart and purchased a 6 ton scissor jack ($18) to push the jack up into place.

So the proceedure is this. Activate your store button and do some other chores while the jacks are retracting. Then get out your scissor jack and jack-up the offending jack(s). Note that the system has to be left in the on position while doing this. Let the system turn itself off and you are ready to go.

Now that I'm back in FL for the winter, I'll get new springs and replace them.

Hope this helps.

'05 Dutch Star 4015, '16 Rubicon OlllllO, & HD Ultra ElectraGlide, NKK14278L
Brigadoon is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
How to Diagnose and Fix a Bad Leveling Jack Jackm MH-General Discussions & Problems 5 11-07-2009 08:31 PM
Quick fix for stuck Hydro Hot check valve MBnKen Newmar Owner's Forum 5 11-02-2007 05:44 PM
Stuck Jack Zac Newmar Owner's Forum 16 10-24-2007 07:14 AM
Journey Leveling Jack R & R smlranger Winnebago Industries Owner's Forum 8 09-26-2007 03:43 PM
Stuck HWH Jack DriVer Winnebago Industries Owner's Forum 15 11-27-2006 03:48 PM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:37 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.