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Old 03-16-2012, 11:15 PM   #1
3 Rivet Member
GreggH's Avatar
2005 31' Classic
Castalain Springs , Tennessee
Join Date: Jan 2006
Posts: 205
Hensley teardown/repaint

After 6 years and 60K+ of towing (including 3 months in Alaska) with the haha decided to take it apart to have it sandblasted and repainted. No need to post photos as the ones on the "ultimate haha user guide", page 37 post 505 show enough.
Did a complete tear down and found:

No water or dirt inside so only replaced grease seals and repacked bearings.

Replaced upper dust caps only for cosmetic reasons since doing a repaint. Cleaned and reinstalled two of the old ones for the bottom.

Replaced grease fittings (zerks)-the plunger that holds the spring bars in place did have a little wear but had much more life in them. Wasn't necessary to replace but since I had it apart figured I would and saved the old ones for spares.

Replaced the spring bar U-brackets. The elongated holes which the pin slips through to connect the strut assembly to the spring bar enlarged due to wear and/or compression. The hole enlarged to 1/8th " closer to the edge. On the new brackets, the hole begins 3/8th " from the top edge of the bracket but on the old brackets, the hole wore to 2/8th " from the edge. This is the only part I felt needed replacing because of the wear and stress by the spring bar tension and probably is something haha owners should add to their frequent checklist. I don't know how much that hole can enlarge before it poses a threat of failure or effects towing.

The twin bushing located on the bottom of the hitch box, where the ends of the spring bars insert, had some wear on the interior ends but not as much as in the photos mentioned above. I called Hensley and was told as long as the spring bars stay inserted no action is necessary.

Replaced the collar with set screw which holds the strut assembly to the frame bracket only because the set screws were rusted, another cosmetic thing.

Replaced the 4 shear bolts because of rust.

It was an easy tear down, no special tools or complicated parts. As said in previous posts, if you can do wheel bearings you can do this, although after doing it and inspecting mine, I'm not sure it is necessary. I think if you pop off the upper and lower dust caps and you can see no water is getting inside and the grease looks clean, you'll be fine. My son-in-law sandblasted the parts and repainted them a shiny black used for farm equipment which should last longer than the original paint job.
So, after 6 years and a lot of miles the Hensley was in good shape. The only necessary fix, and only in my opinion, was replacing the spring bar u brackets and getting the whole package painted.

Next project, brakes.


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Old 03-17-2012, 10:49 AM   #2
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slowmover's Avatar
Corpus Christi , Texas
Join Date: Nov 2006
Posts: 6,304
Images: 1
Nice description. And similar to my experience.

Replaced the spring bar U-brackets.

Something that should be purchased along with the hitch itself. They wear quickly (mine looked lousy by 5k miles).

1990 35' Silver Streak Sterling; 9k GVWR.
2004 DODGE Cummins 305/555; 6-manual; 9k GVWR.
Hensley Arrow. 10-cpm solo, 18-cpm towing
Sold: Silver Streak Model 3411
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Old 03-17-2012, 11:05 AM   #3

2003 25' Classic
Zanadude Nebula , WNY
Join Date: Jun 2007
Posts: 10,802
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Thumbs up


Great post!!!

Do you leave it on 365.

Found that by removing it every Fall your almost forced to do the needed maint as you re-install in the Spring.

I use the cover during the Season and after 8years don't have cosmetic problems yet.
The haha head looks better than mine.

AF #1

"Sticks & stones can break your bones...and hail will dent your Airstream"

So when is this..."old enough to know better" supposed to kick in?
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Old 03-17-2012, 11:54 AM   #4
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GreggH's Avatar
2005 31' Classic
Castalain Springs , Tennessee
Join Date: Jan 2006
Posts: 205
Yes, we leave it on all the time as we camp all year long. We're usually home around this time of year so I do all major maintainance and inspections now, before spring. We'll be heading for the South Carolina coast in a couple of weeks. Most of our camping is done along the coast from Florida to Prince Edward Island, Canada, so the trailer is exposed to the salt air probably 5 months out of the year. Covering it would have been a good idea, now that it's freshly blasted and painted I'll probably start. Taking it off would certainly give a good opportunity to thoroughly check it over. Hopefully this paint job will last longer then the original.
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