There is no lever in evidence. I have read elsewhere that some tow valves are switched by screwing an allen key in or out. Unfortunately there is nothing obvious on this valve and there is no reference on how to operate the valve in the user manual.
I'm thinking there is a relief valve in there...
Sorry don't have anything like that schematic. I assume that would be in a service manual?
I have just bought the machine like this. Previous owner said it was usable for about 20 mins or so until it got hot. As the machine heats it will gradually lose all hydraulic power until it becomes...
Hi Akkaman and thanks for the reply.
I have attached the only hydraulic schematic I have. Hope this helps.
As you can see the only common point is the 'Tow'valve. I'm thinking there is a relief valve in here which is restricting pressure 591500 psi. I'm thinking this as all hydraulic circuits...
Hi All
Hope somebody can help me out. I have a Nissan N350 excavator which will not meet it's upper pressure set point.
It has three pumps which feed both sides of the spool valve via a Tow valve. The highest pressure I can achieve is approx 1500 psi which I have measured at all three pumps and...
