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10-01-2014, 04:01 PM
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#1
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Senior Member
Alpine Owners Club
Join Date: Aug 2010
Location: Cincinnati, OH
Posts: 281
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HWH Jack Spring Removal
I am looking for a good procedure to remove and install HWH Jack springs. Other than the push, pull & grut method.
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10-01-2014, 04:15 PM
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#2
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Senior Member
Rexhall Owners Group
Join Date: Jul 2013
Location: Beavercreek, OH
Posts: 335
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do a search on this forum "replacing HWH springs" and you'll find a post with pictures using angle iron and 1/4 inch threaded rod. In the same thread, one person did it by using clothes pins. I'd provide the link, but not sure how to do it!
Good luck
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10-01-2014, 05:56 PM
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#3
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Senior Member
Newmar Owners Club
Join Date: Jul 2006
Location: Wellington, Florida
Posts: 13,599
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Hi tjshively,
I use the cloths pin method.
1. Extend the jacks all the way.
2. Put cloths pins on each spring coil
3. Retract the jacks. One may need to provide a bit of help to get the jacks to retract.
4. Put the new spring in a bench vise.
5. Bend the spring and place cloths pins in each coil as it is exposed to the bending. One will need to bend the spring both ways to put cloths pins on both sides of the spring.
6. Install the new springs on the jack. One may need to extend the jack to get both ends of the spring in the fastening hole.
7. Extend the jack all the way. Remove the cloths pins.
8. The springs should now be ready to provide the correct spring tension.
__________________
Gary
2005 Newmar KSDP 3910 + GMC ENVOY XUV 37K lbs Moving Down The Road
The Avatar Is Many Times Around The USA
Nobody Knows Your Coach Like Somebody Who Owns One Just Like Yours
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10-01-2014, 07:06 PM
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#4
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Senior Member
Join Date: Nov 2011
Location: Polk City Florida
Posts: 1,930
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Four bolts remove the entire jack, remove the Hyd line ( no fluid leaks out )
Compress the jack to the right remove the spring, compress the jack to the left remove the spring. Reverse the procedure to install new springs and re install Less that 30 min per jack and no effort ( used an electric impact wrench)
__________________
Don and Nancy
[2018 Tiffin Bus 40 AP, 2022 Ford Edge ST , 9yr old sisters Sara n Kaycee, Havanese, Electric Catrike
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10-02-2014, 04:45 AM
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#5
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Senior Member
Join Date: Jul 2010
Location: Conway, SC
Posts: 2,557
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Are you sure the springs need replacing? I thought the same because of them not retracting properly. I was told to extend the jacks then give the pistons a good cleaning with WD40. Run them back up, then back down again, and clean again. I was stunned by the amount of gunk I got on the rag even though the pistons looked clean and shiney. Be sure to wipe them off completely or the WD40 will be like a dirt magnet. Any way my HWH system is now over 14yrs. old, has the original springs and still works fine. I also now do this at least once a year.
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2000 Dutch Star Pusher
2009 Saturn Vue Towed
Full timed for 6yrs.
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10-02-2014, 05:27 AM
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#6
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Senior Member
Join Date: Aug 2011
Posts: 258
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I used a come-a-long with a small string attached to the spring. Pulled on spring and with a screw driver pop the spring out. Put the new one in the same way.
__________________
Rich 1997 35' Dutch Star
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10-03-2014, 12:34 AM
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#7
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Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Apr 2012
Posts: 2,079
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Quote:
Originally Posted by djbmsu
Four bolts remove the entire jack, remove the Hyd line ( no fluid leaks out )
Compress the jack to the right remove the spring, compress the jack to the left remove the spring. Reverse the procedure to install new springs and re install Less that 30 min per jack and no effort ( used an electric impact wrench)
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What ?
was this post made in jest that is a lot of work for a simple job. A friend of mine did the front springs. He litterally took the new springs in hand crawled under the bus and had both sides changed in less than 5 minutes
There is a post somewhere that the poster describes changing the back springs by taking a small hydraulic jack under one side of the plate at the bottom of the jack. He jacks that side up until the spring is loose and then takes it off. Lets his jack down and the other spring will come right off. He then reverses the procedure to put the spring on. Put one side on and then jack up the plate until he can slide the spring on to it.
The plates are just held on by the spring so you can tilt them enough to get pressure completely off of one side.
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10-03-2014, 09:28 AM
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#8
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Senior Member
Workhorse Chassis Owner Triple E Owners Club
Join Date: Nov 2004
Location: Williams Lake,BC Canada
Posts: 1,230
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Take 2 large screwdrivers. Place 1 on each side of the central pin 0n the foot plate. Push down to release the pin and slide the plate off to one side. Replace the springs and do the reverse. Simple - take more effort to line up the pin on reinstall
__________________
2020 Triple E Wonder RTB
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10-03-2014, 05:52 PM
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#9
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Senior Member
Join Date: Mar 2009
Posts: 1,232
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I believe there has been changes over the years in the tension of the HWH springs. I have had only straight jacks on my two RV's. On my first one, those springs were so hard to pull down I could not do anything with them. I had to extend them and use shims to stretch them out. On my current RV, the I could just grab the springs pull them down and that was it. I was able to change all 8 springs in about 10 minutes.
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