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Old 09-16-2014, 11:08 AM   #1
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Angry Also new. With problems!

I have joined to see if anybody has had the same problem we have. We have a 2006 37 ft fifth wheel, four slides. The big slide is the living room with dinette and hideabed couch, and have had shear pins on this slide break four times on a recent 60 day trip in Alaska. There is obviously a problem that is causing these to break (I know they are designed to break to protect some part or parts, but what could be wrong?). The first three times we had them fixed, nobody isolated a problem, and we are now home and will be taking this in for repair and other services, but I hope someone can give me an idea. Why would RV repair places just replace the pins and not figure out why they break? We have used this rig for other trips, on normal roads and never had a problem. Could the Alkan Highway (terrible roads) have damaged something?

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Old 09-16-2014, 11:46 AM   #2
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Welcome to IRV2! We're sure glad you joined the bunch here!

Sorry I can't help with your problem!

Good luck, happy trails, and God bless!

Joe & Annette

2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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Old 09-16-2014, 01:14 PM   #3
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Welcome and glad to meet you!
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Old 09-16-2014, 01:28 PM   #4
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Power Gear rack and pinion slides use a couple of differnet shear pins but the most common is a 1/4" GRADE 8 Bolt.. Use of a Grade 5 makes them easier to shear.

I used to buy these by the dozen a couple times a year but then another forum member gave me some great advice

The OEM bolt was short threaded... The longer threads on the replacements (Less you order from power gear) means that the threads extend all the way into the shaft,, And that's where they shear, first.

Use of a LONGER bolt means the smooth "Shank" portion of the bolt extends past the far edge of teh square shaft.

First: Make sure the hole is round, if it's gone oval due to repeated shear happenings, you will need to re-drill it.

Next use the longer bolt, if you need to cut off excess length to keep it from snagging on wires, Do so (I do not)

Finally use FLAT washers to build up the shaft so you can tighten it down properly and use NYLOCK nuts so it stays tight.

I still buy 'em by the dozen.. Just not nearly as often.

And ... I often end up donating them to a camp ground (Right after I sit down on the end of the pic-nic table bench and land on the ground cause there are no bolts in the other end)
Home is where I park it!
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Old 09-16-2014, 02:45 PM   #5
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Glad you're aboard. Sorry you're having problems. Best of luck on finding a solution. Enjoy your adventures and be safe.
Have a wonderful day!
Ken (RVM 87)
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Old 09-16-2014, 08:00 PM   #6
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Welcome to the irv2 gang! Sorry to hear about your difficulties with the slides. It sounds like you have received some good advice, but I'm also hoping someone chimes in on "what causes the problem?"

There are lots of helpful folks in these forums. You've already received some good advice; hope you get the rest of the answer to your questions. Good luck!
Hudgens Family, 2014 Jayco Precept 31ul, 2011 Jeep GC toad, Blue Ox BX7365 towbar, RVi2Brake in Jeep
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Old 09-16-2014, 09:55 PM   #7
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Good luck finding a solution.
John & Cathy R.
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Old 09-17-2014, 07:46 AM   #8
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Glad to have you here with us.

I'm sure you'll get a lot of fix suggestions.

Best of luck and Happy Trails!!!

Tony & Ruth........... FMCA#F416727
Newmar Dutch Star 4320, Spartan MM Chassis, Cat C9, Jeep Grand Cherokee Hemi, Blue Ox Aventa LX, and Brake Buddy. TST 507 TPMS
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