No loader valve

afphinfan

New member

Equipment
Kubota L4300
Aug 9, 2024
12
4
3
Lake Martin, AL
Just bought a used L4300, mainly for cutting in and maintaining firebreaks on small property I am having long leaf pines planted. While I didn’t need an FEL, I wouldn’t mind having TnT. Every search Ive done mentions adding a 3rd function to the loader valve but nothing ever talks about when there is no loader. Any help is appreciated, thanks!
 

TheOldHokie

Well-known member
Lifetime Member

Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Apr 6, 2021
8,928
4,669
113
Myersville, MD
windyridgefarm.us
Just bought a used L4300, mainly for cutting in and maintaining firebreaks on small property I am having long leaf pines planted. While I didn’t need an FEL, I wouldn’t mind having TnT. Every search Ive done mentions adding a 3rd function to the loader valve but nothing ever talks about when there is no loader. Any help is appreciated, thanks!
I talk about it all the time. In fact that poor dead horse has been beaten so badly it is no longer recognizable.

You can add a commodity two spool valve to that tractor for $250-$300. Hoses and couplers for the rear outlets another $200.

If you want details just ask.


Dan
 
  • Like
Reactions: 1 user

afphinfan

New member

Equipment
Kubota L4300
Aug 9, 2024
12
4
3
Lake Martin, AL
I talk about it all the time. In fact that poor dead horse has been beaten so badly it is no longer recognizable.

You can add a commodity two spool valve to that tractor for $250-$300. Hoses and couplers for the rear outlets another $200.

If you want details just ask.


Dan
Yes sir, Id be grateful for the details. Thank you
 

TheOldHokie

Well-known member
Lifetime Member

Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Apr 6, 2021
8,928
4,669
113
Myersville, MD
windyridgefarm.us
Yes sir, Id be grateful for the details. Thank you
Your tractor has a front hydraulic outlet block that is used to supply the loader. Its use is documented in your operatos manual. Since you do not have a loader you can use it in the exact same fashion to supply a valve for your rear remotes.

First step is to buy a valve for your rear remotes. It must be open center with two outlets - one for power beyond and one for tank return. The valve can have as many spools as you want. Each spool controls one set of two rear remote outlets. For top and tilt you need two sets of outlets. Here is an inexpensive two spool valve that would work for top and tilt but there many others. This particular valve is $109 plus an addituonal $25 for the requisute power beyond conversion sleeve.


Next you need to locate a place to mount your vakve. The top of a fender or a bracket bolted to the ROPs are common locations.

Once the vslve is mounted you use three hoses to connect it to the frint hydrsulic block. Again your operators manual details that plumbing. One word of caution - the WSM says the ports on the block are British taper pipe thread so you need to purchase three adapters to convert them to whatevet US thread used on your hoses.

Once those three hoses are connected as described in the operators manual you turn the selector valve on the outlet block to the external valve position and your auxuliary valve is ready for use.

The last step of the process is running hoses and quick connects from the valve to the rear where you would hook up your top and tilt cylinders or sny other implement that needs a hydraulic supply.

Really EZ-PZ.and for two sets of outlets probably less than $500 total.

Dan
 
  • Like
Reactions: 1 users

afphinfan

New member

Equipment
Kubota L4300
Aug 9, 2024
12
4
3
Lake Martin, AL
Your tractor has a front hydraulic outlet block that is used to supply the loader. Its use is documented in your operatos manual. Since you do not have a loader you can use it in the exact same fashion to supply a valve for your rear remotes.

First step is to buy a valve for your rear remotes. It must be open center with two outlets - one for power beyond and one for tank return. The valve can have as many spools as you want. Each spool controls one set of two rear remote outlets. For top and tilt you need two sets of outlets. Here is an inexpensive two spool valve that would work for top and tilt but there many others. This particular valve is $109 plus an addituonal $25 for the requisute power beyond conversion sleeve.


Next you need to locate a place to mount your vakve. The top of a fender or a bracket bolted to the ROPs are common locations.

Once the vslve is mounted you use three hoses to connect it to the frint hydrsulic block. Again your operators manual details that plumbing. One word of caution - the WSM says the ports on the block are British taper pipe thread so you need to purchase three adapters to convert them to whatevet US thread used on your hoses.

Once those three hoses are connected as described in the operators manual you turn the selector valve on the outlet block to the external valve position and your auxuliary valve is ready for use.

The last step of the process is running hoses and quick connects from the valve to the rear where you would hook up your top and tilt cylinders or sny other implement that needs a hydraulic supply.

Really EZ-PZ.and for two sets of outlets probably less than $500 total.

Dan
I will look in the operators manual and look at the summit site. I truly appreciate the info!
 
  • Like
Reactions: 1 user

afphinfan

New member

Equipment
Kubota L4300
Aug 9, 2024
12
4
3
Lake Martin, AL
Dan, I wanted to ressurect this thread before it got too old. I've been putting the tractor to good use but would still like to put together a list of what I need to get for adding Top N Tilt. I have a WSM in PDF that is definitely going to be useful. I found where you said it stated 3/8 TP ... which apparently is referenced as 3/8 BSPT on a few sites that sell adapters. So as I understand it I need from Summit:

** This list is what I cobbled together as I tried to understand each thing I needed; please let me know if I am incorrect or missing anything ... and thank you for your help!
  1. Monoblock Control Valve, 2 Spool $109.00
  2. Power Beyond Adapter sleeve $22.50
  3. Adapter fitting from 3/8 BSPT male to 3/8 NPTF $44.28
  4. 3/8" Hydraulic line from front hydraulic block (out) to valve (P) $39.95
  5. Hydraulic line from front hydraulic block (in) to valve (T) $39.95
  6. Hydraulic line from valve (PB) to ? $39.95
  7. Two Hydraulic lines from valve (A1/A2) to set of rear female quick connects $89.90
  8. Two Hydraulic lines from valve (B1/B2) to set of rear female quick connects $89.90
  9. Hydraulic cylinder for top link (measure min/max size) $189
  10. Hydraulic cylinder for side link (measure min/max size) $250
  11. Two Hydraulic lines from set of rear female quick connects to top link cylinder $39.95
  12. Two Hydraulic lines from set of rear female quick connects to side link cylinder $39.95
  13. Banjo bolts to connect lines to valves?
 

afphinfan

New member

Equipment
Kubota L4300
Aug 9, 2024
12
4
3
Lake Martin, AL
I've also found other sites that built custom hoses with any fitting I want so I could forgoe the BSPT adapter and have that fitting on the hose. I have not looked to see if area has a reasonable hydraulic hose supply.

I've read a number of threads where folks suggested hydraulic cylinders with check valves and others where at least one valve should be a float valve (which arent compatible with check valves). Any thoughts on that? thx!
 

TheOldHokie

Well-known member
Lifetime Member

Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Apr 6, 2021
8,928
4,669
113
Myersville, MD
windyridgefarm.us
Wow - you packed me quite a large lunch o_O

Lets start with the BSPT outlet blocks. NPT may be familiar but it is not your fruend when dealing with hydraulic plumbingb so lets make that BSPT x male JIC - 2 @ $5 each


Since we have "unfriended" NPT we are goung to "friend" hose with JIC female swivel ends. Surplus Center sells quality R16 hose at very excellent prices. Make a list of lengths needed and order a box full of their 3/8" hose with female JIC ends.


Next you will need a bunch of SAE oring to JIC 8M. adapters for the hookup to the valve. I know that inside out but i am not going to try to make that list right now. We can discuss it in a PM.

Connections to the cylinders depends on whst you get in the way of cylinders.

The connections between valve and tractor are like this:

Block -> P
PB -> Block
T -> sump in transmission

I have a lot (most) of what you will need here in the shop and I am sure I can make the shopping easier and less expensive

Dan