Today were going to take a quick look at the Bulldog Collar Lock Coupler with pin part number bd028244. Now this is a weld on design so youre going to weld it directly to the tongue of your trailer coupler along the edge here and on the back. Its designed to be used with three inch trailer tongues. Well measure the inside width and again we get our three inches. Well also quickly measure our overall length and we get about 16 and a quarter inches. Now the coupler itself is made out of high strength steel so its very durable.
The collar lock system is a little bit different than typical trailer systems. The collar will slide back releasing this hinge and the socket opens up so you can get the ball in or out. To be able to release it the collar needs to slide back far enough so we need to remove our pin first. Theyve secured the pin to the coupler with a chain lanyard to make sure you dont lose it. With the pin out of the way we can slide our coupler down and this wedge here will release and swing open.
Theres the little hook here that will hold it open while you get the ball fitted into your coupler. Weve got a two inch trailer ball. Well fit it into place and then as we close the wedge the spring loaded collar will slide forward securing the wedge side around the ball. This provides a nice captive snug fit around the ball to insure that the trailer doesnt come undone. Once the balls engaged in place you can then re-insert your pin and secure it.
Thisll prevent the collar from coming back and releasing while youre trailering down the road. To release the ball well just reverse the process. Again the pins removed so we can slide our collar back. The wedge opens up and the ball is free. Thats it for a quick look at the Bulldog Collar Lock Coupler with pin part number bd028244..
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.