jrdepew
Silver Member
After owning my 1920 for a few years, I have run into a lot of cases where a set of forks would be very handy. Moving large rocks, unloading heavy "finds" out of the back of the truck (a boiler, various tools, etc), and even moving the large dog house I built come to mind. I looked into SSQA, and almost bought one of the NH adapters for the 110TL loader to convert over, but the fact that it moves the bucket/forks out 2-4 inches and how expensive it is turned me off.
On a whim, I asked a co-worker with a JD 2520 to take some measurements on his JDQA for me, to see if something like that would work for me. As it turns out, the loader arm spacing on my 7108 is nearly identical to his 200cx (within 1/2"). In fact, the only real difference that I can see is that the pin-to-pin spacing on his brackets is about 3/4" less than mine. The 7108 loader has a pin spacing of about 9.25", while the JD is somewhere around 8.5".
After thinking about it, I took a chance, ordered some AW28607 and AW28606 loader brackets from JD. These are the JDQA brackets for the 420 and similar sized JD loaders. I borrowed the Aritillian pallet forks that my co-worker has, and bolted and pinned everything together. Here is the result:



The picture with the forks mounted shows the only problem I ran into...the roll back angle is impacted negatively. I thought, given the fact that the pin spacing was closer on the JD bracket, that I would have gotten increased roll-back and the expense of break-out force. However, I got less roll back because of the way the 7108 loader limits roll back travel. The outer tube (painted blue part, not the chromed cylinder) hits the loader arm when I roll back to max.
The way I see it, I have a couple options. Option 1 is to abandon the JDQA idea. Option 2 is to live with it, and make sure I build enough roll back into the bucket mount. Option 3 is to modify the JDQA bracket slightly to push the upper pin 1" higher. This will also require moving the hole forward slightly, if one looks at the bracket. Moving the hole up and forward will increase my roll back angle as well as my breakout force in this case if I am thinking about this correctly.
In order to make the change permanent, I will have to make new pins as well, as JD charges way too much for pins probably made from 1018 or 1045, or possibly 1144. I haven't bought material yet as I am not sure which route I am going to end up taking.
Any input is welcome!
Thanks,
Joe
On a whim, I asked a co-worker with a JD 2520 to take some measurements on his JDQA for me, to see if something like that would work for me. As it turns out, the loader arm spacing on my 7108 is nearly identical to his 200cx (within 1/2"). In fact, the only real difference that I can see is that the pin-to-pin spacing on his brackets is about 3/4" less than mine. The 7108 loader has a pin spacing of about 9.25", while the JD is somewhere around 8.5".
After thinking about it, I took a chance, ordered some AW28607 and AW28606 loader brackets from JD. These are the JDQA brackets for the 420 and similar sized JD loaders. I borrowed the Aritillian pallet forks that my co-worker has, and bolted and pinned everything together. Here is the result:



The picture with the forks mounted shows the only problem I ran into...the roll back angle is impacted negatively. I thought, given the fact that the pin spacing was closer on the JD bracket, that I would have gotten increased roll-back and the expense of break-out force. However, I got less roll back because of the way the 7108 loader limits roll back travel. The outer tube (painted blue part, not the chromed cylinder) hits the loader arm when I roll back to max.
The way I see it, I have a couple options. Option 1 is to abandon the JDQA idea. Option 2 is to live with it, and make sure I build enough roll back into the bucket mount. Option 3 is to modify the JDQA bracket slightly to push the upper pin 1" higher. This will also require moving the hole forward slightly, if one looks at the bracket. Moving the hole up and forward will increase my roll back angle as well as my breakout force in this case if I am thinking about this correctly.
In order to make the change permanent, I will have to make new pins as well, as JD charges way too much for pins probably made from 1018 or 1045, or possibly 1144. I haven't bought material yet as I am not sure which route I am going to end up taking.
Any input is welcome!
Thanks,
Joe