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12-29-2015, 10:13 AM
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#1
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Full Time Camper
Join Date: May 2011
Location: So. Cal.
Posts: 577
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5th wheel jack failure
while picking up our 5th wheel for Christmas to house out of town family, lifting up the jacks, I had a loud thump Noise. Then the pass side jack wouldn't move up or down. I tried moving it manually without success.
I pulled the pass side jack totally out, knowing the internal threads sometimes go bad, thinking I'd need to replace the upright assembly.
Once apart, there wasn't any sign if stripped threads?
All was still greased up pretty well and no sign of metal flakes, etc.
A bit confused, I pulled on the crossover bar and it came right off of the motor assembly. I'd never climbed back up in there before but I knew that couldn't be right, as it has to connect to both sides, and needs to stay secure.
Climbing up over the generator, I found the bolt that holds the crossmember on to the motor, had unscrewed and popped out under pressure.
A simple replacement with a grade 8 bolt and nylon insert nut and I was good to go. Probably not a bad thing to pull the unit apart and re-grease anyways.
I didn't pull the driver's side unit apart and will re-grease at another time.
A simple fix to what appeared to be a costly project. Something I felt needed to be shared with others if that problem comes up while on the road.
__________________
Bob and Better Half
2007 F-250 PSD, SW, CC, LB, 2WD
2006 TF32SS Cross Terrain Toy Hauler (sold)
Reese 16k slider
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12-29-2015, 10:24 AM
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#2
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Site Team
Join Date: Dec 2007
Location: WI.
Posts: 9,162
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Good post and info Bob. Thanks.
Do you think a grade 8 bolt is necessary, or would it be better to have something softer that could shear before damaging the motor or gears?
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12-29-2015, 10:40 AM
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#3
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Full Time Camper
Join Date: Sep 2013
Location: Winchester, ON
Posts: 1,177
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Thanks for sharing. We have not had any problems, but we will save this link in case we ever need it.
__________________
2012 Cruiser Sahara 330SS
2015 F250 Super Duty diesel
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12-29-2015, 03:20 PM
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#4
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Full Time Camper
Join Date: May 2011
Location: So. Cal.
Posts: 577
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Quote:
Originally Posted by Lloyd
Good post and info Bob. Thanks.
Do you think a grade 8 bolt is necessary, or would it be better to have something softer that could shear before damaging the motor or gears?
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Lloyd,
Good observation, however, both towers have the traditional type "ring and pinion" assembly on top for lack of a better description, that most trailer tongue assemblies have.
On the top of the shaft drive gear is a shear pin that protects the assembly just in case of that issue.
The original bolt had a Allen head and I couldn't tell if it was a grade 5 or 8 bolt so I decided to go heavy.
The crossover bar housing Hole had been distorted, while the bolt showed no wear, hence the thought it was a tempered bolt.
__________________
Bob and Better Half
2007 F-250 PSD, SW, CC, LB, 2WD
2006 TF32SS Cross Terrain Toy Hauler (sold)
Reese 16k slider
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12-29-2015, 05:19 PM
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#5
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Full Time Camper
Join Date: Aug 2010
Location: , RI
Posts: 1,164
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Good post Bob and Lloyd. Good information and observation. It is what makes this a valuable forum. Thanks.
__________________
Al Laura (Lily & Breeze Portie Girls)
2011 F250 6.7 PS Tuxedo Black 4x4
11 305SKP- TPMS- RideRite air bags
Reese 16K Slider Wet Bolts
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12-29-2015, 07:50 PM
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#6
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Full Time Camper
Join Date: Apr 2011
Location: Pennsylvania
Posts: 2,769
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I always try to read stuff like this just in case it happens to me at another time...Thanks for sharing...
__________________
Rosie & Tommy
Coatesville Pa.
2017 Ford F350 Lariat Power Stoke DW
2022 Alliance Avenue 32RLS
In God We Trust
A proud member of the one percent...Semper Fi
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12-30-2015, 02:52 PM
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#7
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Site Team
Join Date: Jan 2014
Location: VA
Posts: 1,720
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Great information. If I ever have a problem with mine, I'll check this out.
__________________
2013 Silverado 2500HD LTZ CC 6.6L Duramax Diesel
2023 Rockwood 2445WS
Buster, miniature Dachshund
2024: 2 trips, 26 nights in 8 states, 4801 miles
2023: 9 trips, 48 nights in 12 states, 2 provinces, 8120 miles
2019: 7 trips, 43 nights in 6 states, 3904 miles
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