I would like to take out the Hydrostatic Relief Valves and see if they are rusty, plugged up, whatever. Do I need to drain the system, are they under pressure? It looks like a simple process. Or do I take it to the dealer? Any help appreciated..
Could I get the part numbers, please...Thanksthey are not under pressure, just springs, the only issue is access, two are on top, the other two are underneath the pump i believe.
Here is a link to the parts catalog:Could I get the part numbers, please...Thanks
I thought you could take out the relief valve, look it over or replace, put back in. I thought the springs were all ready set, no pressure testing.743 if I recall are on the valve body right side of machine, was a royal pain working with the motor in but to set pressures you need motor running, mine had broken spring
Tazza: That is what my dealer said too. He said to work on the steering to get it in neutral. I will keep trying to find that neutral.That noise is not your relief, that is your motors fighting against the brake.
Lift the machine off the ground so all wheels can move, start the engine and see if the wheels turn, if they move, your steering is not in neutral, i'd almost put money on that being your issue. Relief valves will cause a lack of power either forward or backwards, they limit the pressure that the pumps can apply to the drive motors.
You hear it when turning, what sort of revs are you running at? low speed, it makes more noise than when revved up?
Are you talking about the bolts that hold the cams in place. Or is it the two adjusting bolts where you adjust the bars with the cams. What is the idea for the lock washers ???100% way I know how to set neutral, lift machine and block it so wheels are free, lift cab, at the back at the back right side are the forward/reverse levers, on them are blocks that push the drive valves, remove the 2 bolts in each and add a spring lock washer to them then tighten, back off about 1/2 thread, start machine, center levers and see which way the wheels turn, with someone holding lever to stop wheel turning use a long punch and tap the block tight against the drive valves, let go the lever and if it still turns repeat in small movements until the wheel no longer rotates, now repeat for the other side.
this method has worked 100% every time even when the dealer could not get it quite right