Back Hoe Maintenance

[Lloyd_E]

Issue started last year but I should address it soon. When using the hoe there is a lot of movement with the brace supports mounts/arms. I tightened all the major nuts/bolts many times and they still wiggle loose. Yesterday(first time use this year) I noticed a metal nut stop(prevents nut from spinning) had a crack in the weld. So my question is: when repairing the crack should I weld up all of the contact points/support arms to the unit. The holes in the brace arms and main unit are probably oval now. Should a new bushing or fix be done here as well?

TIA

 

[cabin kioti]

I have a CK30 HST with a 2375 backhoe on it ,I had the same problem and tried double lock washers,,special nuts that were not to come loose they (DID) lock tite and a number of fixes that didn't work. I finally welded the braces to the sub frame two years ago and that fixed the problem. I check the nuts every so often and they are tight, I am not sure a new bushing would help the problem but it wouldn't hurt.

 

[Coyote machine]

I would start by disassembling some of the more stressed area bolts/nuts an see what the holes look like. If elongated, then you'll have a better idea of what is happening. Welding the 'bar' which locks the frame braces is the factory design, but welding other parts may cause additional stresses and possible breakage, depending on what you decide to weld.
Can you post pics of what exactly you plan to weld? Are you referring to the stabilizers which swing down to the ground on either side of the hoe?
Do you grease ALL the zerks regularly?

 

[IXLR8]

I talked to one Kioti dealer who said the the bolt on braces for the BH mount were done for shipping reasons. He welds up all connections/braces that are made with bolts that never come apart. He said he has been doing it this way for over 10 years with no issue. YMMV

 

[DK35vince]

Weld the braces
I had the same problem.
The sub frame braces constantly came loose.
Welded the braces years ago. Problem solved.

 

[Coyote machine]

News to me. If we're talking about just the subframe braces it makes sense. What exactly did you guys weld to what?
Thanks,

CM

 

[Lloyd_E]

Sub-frame braces only.

 

[Fuggley]

Never had any frame wobble problem with my kb2375..... but I'll pay closer attention now.
I'd like to see a pic of the dealer weld too if someone can post one.

 

[Coyote machine]

There are no dealer welds, just factory welds holding the grey frame brace nuts in place. They use a small bar welded to the brace to keep the nut from backing off.

I believe the guys in the conversation above are talking about welding the actual grey shipping braces to the hoe frame to reduce/stop any movement. I can't say for sure, since I haven't seen any pics of the actual weld points, HINT-> HINT.

 

[Lloyd_E]

Sorry the images are a little soft...

Image 2161 shows the bolt head stop and the crack. 2158 is the right side, 2160 is the left side of tractor.

The diagonal gray support is the brace. I would assume you weld where the brake meets the sub-frame(lower right) and the hoe station (upper right).
I would also weld the station to the sub-frame, just below the step - where there are two bolts.

In image 2161 you can see the amount flex of the brace by the rust on the hoe station.

lloyd