RK 24 3rd Hydraulic Line purpose

   / RK 24 3rd Hydraulic Line purpose #1  

Iceman Batten

New member
Joined
Apr 15, 2021
Messages
1
Tractor
RK24
There are 3 hydraulic lines for the RK24 backhoe. It works properly with only two of them connected. What is the purpose of the 3rd line? The two I have connected are the larger connectors which (on the tractor side) have to be connected together when the backhoe is removed. The 3rd line is slightly smaller, and I would like to know what it is for, since the backhoe works normally with out that line connected.
 
   / RK 24 3rd Hydraulic Line purpose #2  
Most often an odd line is for a case drain. Usually smaller than the others. That would be unusual for a backhoe since a case drain is relieves excess pressure in a rotating implement like a wheel motor or auger head.

I attached a page from your bh manual w the hydraulic diagram. It shows a 3rd hose but I'm not sure for what.

My rk55 backhoe only has two.

Can you post a picture?
 

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