Today were going to take a quick look at the Dutton Lainson bolt on trailer Coupler for one and seven eighths inch trailer balls part number dl23870. Again this couplers designed to work with one and seven eighth inch trailer balls. It finished with a zinc plating to help prevent against corrosion. It has a 2,000 pound weight capacity and a 200 pound tongue weight capacity. Its designed to fit with trailer frames that are two inches wide. So well take a quick inside width measurement and well get our two inches.
Overall the coupler has a length of about nine inches. Now its a bolt on unit so theres a pair of bolt holes on either side of the coupler so you can bolt it directly to the frame of your trailer. Theres a chain here and on the end of the chain lanyard youll find a clip that you can insert into this hole to keep the latch from coming open while trailering down the road. You can also use the coupler lock for added security for your trailer either while youre out and about or while you have it in storage. Now were going to show you how the latch system works.
Its a trigger latch where youll have to pull this trigger in order to pull the release out and then you can flip the latch open. As you close the latch the trigger will re-engage and keep the latch from coming open until you pull the trigger. Well take a quick look at the action from the underside. Heres the wedge thats going to secure around the back of the ball. Theres also a nut here that you can loosen or tighten in order to adjust the fit against the trailer ball.
Well pull our latch open and the wedge drops out and back away from the ball. Now we have a one and seven eighths inch ball with us. So well fit it into the coupler and close our latch. The wedge then secures around the back of the ball and provides a good snug fit around the trailer ball to make sure your trailer stays engaged. As we release the latch again the wedge drops open and the ball is free.
Thats it for a quick look at the Dutton Lainson bolt on trailer Coupler part number dl23870.
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.