Unattached Hydraulic line caps

   / Unattached Hydraulic line caps #21  
That is a good idea. All the PT owners should take note and simplify things. The temperature will increase the pressure in the hydraulic line, connected or not. Every thing you did is a good thing.
 
   / Unattached Hydraulic line caps #22  
That is a good idea. All the PT owners should take note and simplify things. The temperature will increase the pressure in the hydraulic line, connected or not. Every thing you did is a good thing.
 
   / Unattached Hydraulic line caps
  • Thread Starter
#23  
Gravy,
I like your disconnect setup. I was thinking about doing the same. Scott, at PT told me to relieve the pressure in the lines before detaching anything via the aux pto. To relieve the lines, the procedure is simple. 1. Turn off the machine. 2. Pump the aux pto lever 5 or 6 times. That's it. The pressure should be relieved sufficiently to disconnect. I don't know why it would be any different with your setup. Have you tried this?
 
   / Unattached Hydraulic line caps
  • Thread Starter
#24  
Gravy,
I like your disconnect setup. I was thinking about doing the same. Scott, at PT told me to relieve the pressure in the lines before detaching anything via the aux pto. To relieve the lines, the procedure is simple. 1. Turn off the machine. 2. Pump the aux pto lever 5 or 6 times. That's it. The pressure should be relieved sufficiently to disconnect. I don't know why it would be any different with your setup. Have you tried this?
 
   / Unattached Hydraulic line caps #25  
Tim, The pressure in the lines from attachments has been a problem since day one. This is caused by heat build up in the lines and cylinders. If the two lines are connected together, some times it is hard to unsnap the quick disconnects. Even when the lines are just hanging, the pressure still builds up, and they will not plug together until you relieve the pressure using a hammer and rod, or unscrewing a fitting.
 
   / Unattached Hydraulic line caps #26  
Tim, The pressure in the lines from attachments has been a problem since day one. This is caused by heat build up in the lines and cylinders. If the two lines are connected together, some times it is hard to unsnap the quick disconnects. Even when the lines are just hanging, the pressure still builds up, and they will not plug together until you relieve the pressure using a hammer and rod, or unscrewing a fitting.
 
   / Unattached Hydraulic line caps #27  
Tim,

The pressure will also build up in the hoses of the attachments while they are disconnected from the machine and sitting in the sun. If the hoses are not connected together, pressure must be relieved in order to connect them. If they are connected, pressure must be relieved to disconnect. Either way requires tools. I've thought of adding in a manual pressure relief of some sort, but that's more complication, not less...

Gravy
 
   / Unattached Hydraulic line caps #28  
Tim,

The pressure will also build up in the hoses of the attachments while they are disconnected from the machine and sitting in the sun. If the hoses are not connected together, pressure must be relieved in order to connect them. If they are connected, pressure must be relieved to disconnect. Either way requires tools. I've thought of adding in a manual pressure relief of some sort, but that's more complication, not less...

Gravy
 
   / Unattached Hydraulic line caps #29  
Indeed, the pressure build-up can be considerable, particularly if the unit is sitting out in the sun for awhile.

If anyone suffers from insomnia, you can check out the old link {HERE} to the math in which I did a rough calculation of pressure build-up versus temperature and link to decompression strategies. /forums/images/graemlins/grin.gif
 
   / Unattached Hydraulic line caps #30  
Indeed, the pressure build-up can be considerable, particularly if the unit is sitting out in the sun for awhile.

If anyone suffers from insomnia, you can check out the old link {HERE} to the math in which I did a rough calculation of pressure build-up versus temperature and link to decompression strategies. /forums/images/graemlins/grin.gif
 

Tractor & Equipment Auctions

IH Cub Lo-Boy 154 (A50514)
IH Cub Lo-Boy 154...
Wooden Dump Barge Wagon (A50515)
Wooden Dump Barge...
John Deere 9450 Combine (A50514)
John Deere 9450...
2025 Kivel 48in Forks and Frame Skid Steer Attachment (A50322)
2025 Kivel 48in...
2018 Chevrolet Tahoe SUV (A50324)
2018 Chevrolet...
2018 CATERPILLAR 299D2 SKID STEER (A51242)
2018 CATERPILLAR...
 
Top