cglaser104
Platinum Member
- Joined
- Jun 5, 2016
- Messages
- 746
- Location
- Lockport, NY
- Tractor
- Massey Ferguson GC1710, Cub Cadet 2206
I finally got around to doing this. Outstanding instructions by the OP! Thank you again!
HOW TO: Adjust the Pressure Relief Valve (PRV) on the MF GC 1705/10/15/20
- Thread starter Clipse3GT
- Start date
- Views: 114528
Gofast
Gold Member
I had to adjust my GC 1710 it was a little low. Now it is back good again.
Thanks for posting this.
Thanks for posting this.
daman1
Gold Member
Doing this adjustment increases the backhoe pressure also correct?
GeneV
Elite Member
Yessir.
daman1
Gold Member
:thumbsup:
cglaser104
Platinum Member
- Joined
- Jun 5, 2016
- Messages
- 746
- Location
- Lockport, NY
- Tractor
- Massey Ferguson GC1710, Cub Cadet 2206
That said don't crank the system to 3000psi. Going over spec is NOT recommended. Things like front axle aren't built to handle the corresponding strength gain that would result from over tuning the prv
For the record I am not recommend raising the pressure that high. More just pointing out the difference between working and burst pressure on hydraulics.
I think the tires would be maxed out before the axle. Which is just as dangerous if you don't know what your doing.
I wouldn't be surprised if the pump could. My understanding of the exact workings of the system isn't strong yet, but I'm assuming the transmission must run at higher pressure than the implements to be able to bog the engine down. Could just be the flow that loads the engine. Does it use a separate pump?
That being said, I don't think there would be any usable gains on the FEL at that pressure over 2200 maybe 2500. The rest of the tractor just doesn't seem to be designed for it. As mentioned above, the axles and tires alone. Then you have the pivot points that may not hold up, the increase wear on the pump, heat generated, valves, ECT. Doesn't seem to be worth it to go that crazy.
It would be interesting to do some testing to see what actual results are and understanding the limits.
I think the tires would be maxed out before the axle. Which is just as dangerous if you don't know what your doing.
I wouldn't be surprised if the pump could. My understanding of the exact workings of the system isn't strong yet, but I'm assuming the transmission must run at higher pressure than the implements to be able to bog the engine down. Could just be the flow that loads the engine. Does it use a separate pump?
That being said, I don't think there would be any usable gains on the FEL at that pressure over 2200 maybe 2500. The rest of the tractor just doesn't seem to be designed for it. As mentioned above, the axles and tires alone. Then you have the pivot points that may not hold up, the increase wear on the pump, heat generated, valves, ECT. Doesn't seem to be worth it to go that crazy.
It would be interesting to do some testing to see what actual results are and understanding the limits.
Langanobob
Gold Member
- Joined
- Feb 1, 2007
- Messages
- 409
- Location
- Reno, NV
- Tractor
- AC HD6G, Ancient Kubota HK5 Mini Excavator, MF GC1720
After buying the tool from Bolt on Hooks and finding out they do not sell the correct fitting for a GC1720 I ended up just having a hydraulic shop make a pressure gauge tool. Cheaper and better in my opinion. I could hardly believe that the fitting from Bolt On (for a GC 1705 from the chart, my mistake even though I did specify for a GC1720 on the order) was literally fused to the threads and was not removable. The response from Kenny was 擢irst time I致e heard of that problem which seemed to make it not a problem in his view. So, I知 the price of his pressure gauge tool and he痴 out a customer. Not the best trade but that seems to be the way it is.
