Three point lift arms

[cop]

I have a New Holland TC45. Recently when lowering the backblade. I bounced it a litltle. The next time I used it, it would not lift. The front end loader works fine. After using the loader for an hour or so, w/ the three point lift control in the up position, the arms will be all the way up.I don't know if they will hold weight because I can't personaly lift any thing heavy enough to check it out. Any suggestions?

[Soundguy]

oil clean?

[JC-jetro]

there is a shock relief ball and spring that squirt out a bit of fluid to keep lift seal damage. This over pressure release is located in the lift cylinder head assembly. Bouncing the implement hanging in the back causes quite a bit of pressure in side the lift system. if the ball is not seated tight against the seat then you'll not be able to lift to lift. that might be a possibility.

jc,

[cop]

Clean enough to drink. Don't think I will. Good point though. My dad always said start with the easiest thing first

[Soundguy]

might have some crud in that safety or relief valve holdin her open?

soundguy

[cop]

JC Thanks, I did have that assembly apart,wasn't sure what I was looking for. Didn't know what that whole thing was for. It all looked ok. Maybe when it warms up a little, I'll take it apart again

[JC-jetro]

JC Thanks, I did have that assembly apart,wasn't sure what I was looking for. Didn't know what that whole thing was for. It all looked ok. Maybe when it warms up a little, I'll take it apart again

Look at the attached pdf (lift head, assembly #13 , ball and spring 17 and 18 might be the culprit. There is a outside chance that you have ruptured the list seal on the lift piston, item 45 and 46 in second pdf (lift cover)..

JC,

[cop]

I dont like to think about taking that apart, but it may come to that. Thanks for the help

[Jackfr]

Sounds similar to what happened to my TC45DA. RickB suggested that I look on the top of the loader valve remove a plug and I might find that the pipe plug under it had loosened and was floating around. That's what I found all I did was clean the threads put the plug back in and I had my 3pt hitch again. Hope you are as lucky, about a 20 minute job. Attached is a picture of the valve laying on itside the top is on the left side. Plug #48 is the one you need to remove to access Plug #56 as I remeember it. Good Luck

[cop]

I'll try that. I didn' think that was connected to the hydraulic power lift, but I can't argue with success.