Today were going to take a quick look at the ProSeries adjustable channel coupler with low latch part #: PSA256S0303. ProSeries covers this coupler with a limited one year warranty. It has a gross trailer weight capacity of 14,000lbs. Its designed to work with trailer balls that measure 2 5/16 inches. Now this is a bolt on coupler head thats designed to work with a channel bracket thats probably already installed on your trailer. The channel bracket will look something like this.
The coupler will fit into the channel and be secured with the bolts and nylon lock nuts. Now we do want to measure the outside width here to determine what channel is needed or what channel it will fit and we get about 2 7/8 inches, so you want to check the channel on your trailer first to make sure that this is compatible. Now we want to go over the latching system. To open the coupler well lift the latch up and pull it back towards the trailer. What this does is move the wedge that sits on the back of the trailer ball backing out of the way so you can get the ball in or out.
To close it simply push the latch forward. Now theres a hole here in the top of our latch where you can use a coupler lock to secure the latch. This will prevent not only the coupler from coming open when youre pulling your trailer down the road, but it will also help protect against theft if you store your trailer. Now well flip it over so you can see the mechanism from below. There is a wedge here that fits against the back of the ball when its in the socket.
If we lift our latch and slide the mechanism back the wedge moves back and out of the way allowing enough room to get the ball in or out. Now weve got a 2 5/16 ball with us, so well show you how it works with an actual trailer ball. Fit into the socket and then we can push our latch forward. The wedge comes forward, secures our ball in the socket, but allows enough travel that the trailer will track smoothly behind the vehicle. To get the ball out well simply reverse the process.
Lift the latch, pull the mechanism back. The wedge moves out of the way and the ball is freed. And thats it for our quick look at the ProSeries adjustable channel coupler with low latch part #: PSA256S0303.
Today on This Old Boat Trailer we are going to rebuild the hydraulic actuator on here and we are going to be using part number 85841, the master cylinder itself, and then we are going to use a master cylinder replacement cap part number A87478, and the cable push rod replacement kit part number 85852, all from Atwood. The first thing we need to do is remove the old master cylinder itself. This is going to require taking off the cap which we have already done. We have disconnected the line back here already and then we can see our factory line, lets disconnect that and then we are just going to undo these four bolts right here. There is probably going to be some leftover brake fluid in there so it will be a good idea to wear some gloves or something. We are going to pull out the back and then underneath there is a little push rod you may want to pull away from it too to help knock it out. 01:09
Today on This Old Trailer we are going to install a brand new coupler using part number 2836AT from Master Lock. This is going to be a three inch wide coupler on it and in between here is going to be three inches wide and it is going to use a two inch ball. The first steps involved are to remove the old coupler. It has been on there for awhile. It is rusted so take a couple of wrenches to it and maybe we will get lucky and we will actually break the bolts and get it to come loose that way. This little stand right here got bent back, probably pinching the coupler, so we are going to take that one apart too. Obviously this is rusted in place so we are going to have to persuade it off. 00:59
Today we are going to show you how to replace a hydraulic coupler. In this case this one is damaged and is going to get replaced by a totally different model. First thing we are going to do is actually drain all the fluid from the master cylinder. And what we are actually going to do is open up one of the wheel cylinders and pump our fluid out and into a holding container. All right we will go to the wheel cylinder now and attach a rubber line to the bleeder valve and get our container ready. What we will do is take the cover off our bleeder valve here and we will go ahead and open it up. Okay, here we just take a rubber hose and just slide it on to the bleeder valve itself. All right and then we will just run the other half of the hose into an empty container here and start draining the fluid out of the master cylinder.