Since I had my new 1025R in the shop and disassembled for the Independent Lift installation, it was also a good opportunity to install the electrical wiring for the cab that'll be installed next fall and additional wiring for auxiliary items. As soon as I ordered the tractor, I also ordered the factory service manuals, so I would have the wiring diagram and disassembly procedures. After reviewing the wiring diagrams, the 1025R has a number of vacant fuse and relay locations in the power distribution block. Most of these are utilized the on the 1026R, which I'm speculating is the European export model by the additional functions/features supported on that model. I guess Europeans are more discerning and refined than Jack Pine Savage Yankees and Hillbilly Johnny Rebs.
I chose to utilize these vacant relay and fuse location for the wiring additions as it results in a much more tidy, organized, installation than utilizing inline fuseholders and finding relay mounting locations. So the first step was to examine the terminals utilized in the power distribution block, identify the manufacture, and source them. This became a far more time consuming process than I originally thought.
The first challenge was extracting one each of the no less than five different terminals utilized! Typically, the terminal itself has a lock barb on its body that mates with a corresponding slot/notch in the body. Not in this case. The terminals have no locking barbs. The locking tabs/barbs are part of the composite power distribution block material. After extracting one each of the different type of terminals utilizing one of my 30+ terminal extraction tools (most of the time it is a small screwdriver), I began the process of identifying them. There,m literally, has to be well over 100,000 different types of terminals. The power distribution block nor the terminals had any manufacture identification. However, the OEM relays were Tyco, so I started there which was a lucky guess as that is what they are. (Tyco acquired AMP industries a large terminal connector manufacturer. After some bad press, they changed their marketing name from Tyco to "TE", which is an acronym for Tyco Enterprises. So when searching for components, they can be listed utilizing any of these three brands or a combination thereof.)
Here is what I came up with:
The large relays utilize two different terminals, one style for the relay coil and the other for the relay contacts. Below is a photo of the coil terminal and here is a link to where I sourced them.
The large relay contact terminal is pictured below and here is a link to where I sourced them. I've included two links. The difference between the terminals is the gauge of wire they'll accept.
The small relays utilized two different terminals. The links and photos are below:
The Mini-ATC fuse terminals is where I struggled to locate the Power Distribution Center terminal. I was never able to locate an exact match, even are viewing hundreds of terminals on TE's product applicator web pages. I finally found a substitute that works well with a minor modification:
To allow the terminal to bottom fully in the Power Distribution Center, the center's locking tab to engage the terminal, and be positioned correctly. A portion of the terminal body needs to be bent out with a small needle nose pliers. I apologize for the photo being out of focus as I was attempting to grasp the needle nose pliers with one hand and hold/operate the camera with the other.
Below are side-by-side before and after photos of the terminals:
To simplify, reduce the number of orders, and reduce shipping expense; I ordered Panasonic relays rather than TE. The specs and terminal configuration are identical to the OEM Tyco relays, although physically smaller.