Replaced a box trailer vent cap

   / Replaced a box trailer vent cap #1  

nikdfish

Veteran Member
Joined
Oct 14, 2010
Messages
1,002
Location
Person Co. NC
Tractor
John Deere 3038E & 1025R FILB
I've been doing some updates on our little 6x12 single axle box trailer (fender running lights replaced with LEDs & new tires), and finally got around to addressing the vent cap. The cap on the pop-up vent had degraded over time (12+ years?) and been taped over multiple times. Initially the tape was to cover a crack, eventually it was the only thing holding things together. I had worried I might need to replace the whole vent assembly but, after looking at options, found I could replace just the cap itself from a third party source.

The replacement cap I got is made by Camco. Their website has a good series of illustrations to help identify what model cap you need for your given trailer vent (there are quite a few variations of hinge for 14"x14" vents). After identifying the style hinge needed, I went with the "unbreakable" polycarbonate version cap & ordered through Amazon for about $24, delivered.

The pics are post-removal of the old cap, but the steps involved are all there.

The old & new cap after initial placement.
20170509_box-trailer-vent-01.jpg


This style of hinge has a kind of "P" shaped channel on base & "U" shaped on on the cap, one nesting in the other. Tabs are bent in at the ends keep things lined up. With everything else removed, unbend a tab on the old cap & slide it off. Bend one tab on the new one & slide it on.
20170509_box-trailer-vent-02.jpg


Close the cap on the opening & go inside
20170509_box-trailer-vent-03.jpg


Insert the crank mechanism arm in the cap slot and secure the mechanism with two screws.
20170509_box-trailer-vent-04.jpg


The screen goes back on, secured with two screws.
20170509_box-trailer-vent-05.jpg


With the screen on, put the crank arm back on & secure with one screw.
20170509_box-trailer-vent-06.jpg


The trim ring goes on, secured with four screws.
20170509_box-trailer-vent-08.jpg


The last step is going up on the opposite side of the trailer to bend the other end tab to keep the cap secure.
20170509_box-trailer-vent-12.jpg


20170509_box-trailer-vent-13.jpg


The old cap material was pretty thin & got brittle over time.
20170509_box-trailer-vent-16.jpg


It was definitely past time to get this done & turned out to be much simpler that I had originally worried it was going to be.
20170509_box-trailer-vent-11.jpg


Nick
 
   / Replaced a box trailer vent cap #2  
Thanks for the heads up about Camco. I've got one that's been held together with Gorilla tape the last couple years. I've replaced the entire units on other trailers a couple of times in the past. That sealant they used around the flange is some tough stuff.
 

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