B2320 Quarter Inching Valve Adjustment???

[vwgtiman]

Ok, I purchased my B2320 w/ a BH65 backhoe so when I took delivery we were unable to review the 3 point operation. Figuring 3 point is 3 point I didnt care until now... I was able to spend time yesterday to remove the backhoe and to setup the 3 point hardware. Not bad but not "quick" as it was described to me. I am thinking it will go faster as paint wears off and pins wear a bit. So as most of you know, when the backhoe is installed the 3 point lever has a blocking plate installed to prevent its use. It seems when this plate was installed the dealer moved the lower limit block all the way forward / down. I removed the BH, connected the lines together, and installed the 3 point hardware. The lever seems real loose. It easily will allow the 3 point down but if you pull up to the upper mechanical stop it will not move. You need to move the lever to the side around the block and back further to make the 3 point go up. There is no such quarter inching at all on this. I'm thinking something is off adjustment???

 

[s219]

Yes, just unbolt and slide the upper limit adjustment block farther, to adjust the slow/quarter-incher behavior to your taste. Tighten it back down when you're happy.

 

[vwgtiman]

So there is no magic move only a 1/4" position. It just moves slower or faster based on where you slide the limit? The limit has a bypass to it also. Do I slide the limit until the 3 point starts to move ever so slight? Would this be my so called 1/4" and then to go full would I push the lever to the side to go past this limiter?

 

[TripleR]

ChuckinNH had an interesting thread on this some time ago; sadly Chuck has passed on.

 

[s219]

So there is no magic move only a 1/4" position. It just moves slower or faster based on where you slide the limit? The limit has a bypass to it also. Do I slide the limit until the 3 point starts to move ever so slight? Would this be my so called 1/4" and then to go full would I push the lever to the side to go past this limiter?

Yep, that's it.

 

[vwgtiman]

Great. JHoward000 wrote a good explanation that made it more clear to me. Here is what he wrote:

The way a quarter-inching valve works, at least on a B-series, can be thought of like this:

The 3ph will raise and lower at two speeds: very slow or very fast. The speed depends on how far you move the lever from center in either direction. The "L-shaped stops" shown in Chuck's original post are simply designed to help you control how far you move the lever, and therefore whether you move the 3ph "Fast" or "slow". They should be adjusted so that when you move the lever to the first "detent" on the stop, the 3ph moves at the slow speed, which allows for much more precision in where you position your implement. This slow, precise control is the "quarter-inching" function. When you move the lever all the way to the stop (past the detent), the 3ph moves at the fast speed.

Once I figured thid out, everything became much easier, especially using a rotary cutter. As the rotary cutter sags, I simply pull the lever up to the 1st detent and it very slowly raises up and I release the lever when it's where it needs to be. If I go too far, I can push the lever to the 1st detent in the down direction to compensate and the mower will very slowly lower. This actually works very well and makes it easy to precisely control implement position. I have never had to readjust these stops once I got them set. I'm not sure why dealers don't do this.

You can experiment with the 3ph lever to see what I mean. If you have the 3ph in its lower position, very slowly raise the lever. At first, the 3ph will raise very slowly. However, as you continue to move the lever farther back (up) very slowly, you will eventually hit a point where the hitch suddenly moves to high speed and raises quickly. The adjustable stops are there to help prevent you from moving the lever to the "fast" speed position by stopping the lever at the detent before it goes too far, yet easily allowing you to bypass the detent when needed for a fast speed.

 

[vwgtiman]

Another question. Are there any springs in this lever that are supposed to keep it in a neutral location? I guess no for the low / float position. But what about up?

 

[s219]

No major springs in the lever that I am aware of, other than action of the valve it's connected to. You can lock it all the way up (to quickly raise an implement). When it comes to the top, a mechanical linkage will flip the lever back to neutral.