rgl726
Well-Known Member
the angle sensor is now busted.
try to replace the angle sensor first.
be sure to configure it properly.
try to replace the angle sensor first.
be sure to configure it properly.
OK thanks very much for your help.
Can I replace the sensor without removing the main pump from the machine?
If so, will i be able to line it up properly in situ?
Also is there any way of lying to the angle of the swash plate to enable me to limp machine back to my workshop? at the moment its in a field away from home!!!
do you think its significant that the DP sensor has been disconnected before I bought the machine?
Richard
You need the manual to replace the sensor and set the voltage properly. You can put the machine into a limp mode in order to get it home. If you look on the bottom of bothe pumps there is a four bolt cap plate over the end of the swash cylinder pistons. If you remove that plate you will see that it has a peg sticking up from the underside of the plate, if you turn the plate 90 degrees and replace it back in the hole then the pin will put the pumps into about halve swash and they will stay there the you can get the machine home if you feather the controls. As for your problem it sounds to me like the pump displacement solenoids, they tend to work fine when cold but as the machine heats up the coils break down and they quit working then the machine goes to full swash and stalls. Good luck.OK thanks very much for your help.
Can I replace the sensor without removing the main pump from the machine?
If so, will i be able to line it up properly in situ?
Also is there any way of lying to the angle of the swash plate to enable me to limp machine back to my workshop? at the moment its in a field away from home!!!
do you think its significant that the DP sensor has been disconnected before I bought the machine?
Richard
send me a PM and we will talk about manuals.Hello -3DOC, Could you please help me in setting Angle Sensor ? I need manual and voltage setup procedure. Please.
I have read all of the threads that have anything to do with the HITACHI 200LC. I have checked fuses, computer is operating normally
Out of the 4 sensors they all tested fine. ALTHOUGH the angle sensor was a little suspect.
STEP 1: I removed the sensor and checked with a small screwdriver to see if the fork on the swash plate was intact. I could rotate the fork freely which indicates that one of the arms must be broken.
STEP 2: I put my multimeter in parallel on the ground and sensor return wires and adjusted angle sensor to roughly 1.45 or 1.54 Volts which is where it should sit in normal operation ** (I may not be accurate with the set voltage values because it has been several months since doing this but a guy with lots of experience had told me to set it to this so I am not making this number up) ** I then reinstalled the angle sensor.
STEP 3: I got a friend to start the machine and operate it while I monitored the voltage..... WHAMMO the machine ran awesome no stalling or slow operation. THEN.. the voltage changed and the machine acted up again. **( I cant remember which did what but from what I gathered after a few tests. Either when the voltage goes above or below the value that I had originally set it causes one of these two things.
ISSUE 1: the machine goes into a limp mode where the engine is at high rpm but all the hydraulic functions are slower than molasses.
OR
ISSUE 2: the machine runs fairly normal except it will stall out when you run the hydraulics full out (two functions at the same time or fully extended or retracted)
My question to anybody is. Has anybody had this problem before? What have they done to fix it? Is it possible to tear down the pump and replace the fork? Does anybody have a rebuilt pump? Is there a manual that shows step by step instructions for tearing down the pump?
Or is my troubleshooting completely effed and I am so far out I should get my head checked?
If you can turn the shaft in the pump easily were the angle sensor goes in, then that is your problem!! That shaft is hooked to the swash plates on the pump and should only move when they move. There is a small pin that holds the fork to the swash plate and that falls out causing your problem. If you are comfortable you can buy the gaskets and remove the pump heads and repair the problem, but you shoul have instructions or a manual. you must drain the hyd oil. PM me if you need manuals.
Thanks -3doc.
Anyone know a good place to get a replacement wiring harness for a EX100-2. mine is all cracked and the machine keeps having intermittent issues and blows fuses. I already changed the EPC and not looking to change an other one that soon.