KyleG
New member
- Joined
- Aug 19, 2008
- Messages
- 21
- Location
- Gaston, OR
- Tractor
- 2008 Yuchai 306 Dozer, 2008 Jinma 454 4x4 Tractor
My intent is not to attempt to get help with this, I just wanted people to be aware of the issue if they are looking to purchase a Jinma Framemount backhoe for a Jinma 454 Tractor. For background reference I bought the Jinma 454 tractor August 2008 and just received the framemount backhoe and a Yuchai Dozer. I purchased through Keno Tractors and they are attempting to resolve the identified issues.
The frame mount backhoe (for the Jinma 454 tractor pictured below) is model number it's the HW04 from Jinma which is the larger framemount backhoe. We have ran into several snags that I'm working with Keno Tractors on, and unfortunately I had the backhoe crated to me, and I discovered all the issues as Keno didn't attempt to assemble and mount to a 454. (as they didn't have one.) From my understanding I'm one of the first (if not the first) to have ordered this framemount for the 454 in the United States.
First issue is Jinma strengthened the frame but gave the same length bolts for mounting backhoe to the backhoe frame, which did not go through all the way, already fixed that bought longer bolts, and lock nuts and washers and also drilled out the center whole on each of the set of 3 threaded mounts (3 on each side and 3 on the back) to make a through bolt mount. ($60 in bolts and nuts)
Second issue the PTO pump was designed for an older style 454 and could not be mounted, waiting for Jinma to send me an adaptor or new pump. See pics below first is the back of the tractor second is the PTO pump. First is 3 holes second is 4 and configuration is completely different.
Third issue, the backhoe frame mounts up by the steps and also back on the lower 3 point arm pins (if you take the 3 point arms off) but the brackets can not slip inside the backhoe frame or to the outside as the frame is the exact width where a straight plate can not fit on the inside and if it's on the outside you can't actually get the castle nut and pin on all the way. Keno is probably going to create for me some modified brackets with a 90 degree corner to make it fit. First pic is left side of tractor, where I attempted to beat the bracket in with a hammer but couldn't get it to go down even wedged, second one is the right one at the same time, and couldn't even get it to wedge.
Fourth and related fifth issue, We were provided a seat adaptor from Keno that they use on their 354 and 254's with framemount backhoes. It allows me to turn the seat of the tractor around using the spring seat. Unfrotunately it raises the seat 4 inches which is already fairly high on a 454, which makes control operation uncomfortable. The other issue is if you turn the seat around and slide the seat to the last pin towards the backhoe I'm still about 12" from reaching the backhoe controls. Keno or Jinma is going to have to figure something out on this one, likely adding a backhoe seat like you would have on a 3 point mount backhoe (although the configuration of the backhoe is different so you can't just use one from the 3 point mount hoe.) We'll see where this one ends up and I'll update the posts as we fix issues. See pics. First pic you can see the adaptor under the seat it has a pin and you can rotate the seat. Second pic is me sitting in the seat with my back against the back of the seat with the seat adjusted all the way towards the backhoe, I'm a short guy but my hands are still 12" from reaching the controls without leaning forward.
The frame mount backhoe (for the Jinma 454 tractor pictured below) is model number it's the HW04 from Jinma which is the larger framemount backhoe. We have ran into several snags that I'm working with Keno Tractors on, and unfortunately I had the backhoe crated to me, and I discovered all the issues as Keno didn't attempt to assemble and mount to a 454. (as they didn't have one.) From my understanding I'm one of the first (if not the first) to have ordered this framemount for the 454 in the United States.
First issue is Jinma strengthened the frame but gave the same length bolts for mounting backhoe to the backhoe frame, which did not go through all the way, already fixed that bought longer bolts, and lock nuts and washers and also drilled out the center whole on each of the set of 3 threaded mounts (3 on each side and 3 on the back) to make a through bolt mount. ($60 in bolts and nuts)
Second issue the PTO pump was designed for an older style 454 and could not be mounted, waiting for Jinma to send me an adaptor or new pump. See pics below first is the back of the tractor second is the PTO pump. First is 3 holes second is 4 and configuration is completely different.
Third issue, the backhoe frame mounts up by the steps and also back on the lower 3 point arm pins (if you take the 3 point arms off) but the brackets can not slip inside the backhoe frame or to the outside as the frame is the exact width where a straight plate can not fit on the inside and if it's on the outside you can't actually get the castle nut and pin on all the way. Keno is probably going to create for me some modified brackets with a 90 degree corner to make it fit. First pic is left side of tractor, where I attempted to beat the bracket in with a hammer but couldn't get it to go down even wedged, second one is the right one at the same time, and couldn't even get it to wedge.
Fourth and related fifth issue, We were provided a seat adaptor from Keno that they use on their 354 and 254's with framemount backhoes. It allows me to turn the seat of the tractor around using the spring seat. Unfrotunately it raises the seat 4 inches which is already fairly high on a 454, which makes control operation uncomfortable. The other issue is if you turn the seat around and slide the seat to the last pin towards the backhoe I'm still about 12" from reaching the backhoe controls. Keno or Jinma is going to have to figure something out on this one, likely adding a backhoe seat like you would have on a 3 point mount backhoe (although the configuration of the backhoe is different so you can't just use one from the 3 point mount hoe.) We'll see where this one ends up and I'll update the posts as we fix issues. See pics. First pic you can see the adaptor under the seat it has a pin and you can rotate the seat. Second pic is me sitting in the seat with my back against the back of the seat with the seat adjusted all the way towards the backhoe, I'm a short guy but my hands are still 12" from reaching the controls without leaning forward.