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I will get pic the next time I drain it. Going to run is for a short time while I fix brake/steering clutch issue. At this point I am now trying to free up the steering clutch on the right side. Just broke the cast brake arm on that side. The brake band housing was half full of water due to no gasket on the cover… Don’t know if it leaked water into the clutch housing or not. Machine has been sitting for a while now…probably 2yrs. You mentioned Keno for parts… I will look them up. I need a starter, decompression cable and now that brake arm. LOL…brake arm looks like it was made from pot metal… So pourous looks like a sponge
so we removed all the fluid from the clutch case and pulled the lower line on the case. There was many large chunks of silicone and metal clogging the holes in the bolt holding that line on the case. I was wondering if we can enlarge those holes in that bolt to insure that nothing clogs them or if there size is specific to the amount of flow to the pump. I believe even if we were to put a filter on these holes would still clog and stop the flow to the pump.
We just blew back thru the suction hose and now the flow is back and machine moves again. We are currently draining the case again and going to run a magnet around as well…
Lets try this…………
QuoteI do find it comical that the hydraulic filter is last in line after fluid passes through all important parts. I am considering moving that to the suction line on the pump.Return line filters are very common. Their purpose is to keep the reservoir clean without sacrificing pump efficiency. There are also pressure side filters that are installed downstream of the pump to protect valves, servos, cylinders, etc. Suction side filters must be approximately twice the flow rate as return line filters so as not to promote cavitation and early pump failure.
Ok good to know. Filter stays where it is. How could I check to see if the accumulator is bad or defective? Also, I am going to pull the return hose off the filter and see how the flow is. Should the flow stop while in forward or reverse?
Lets try this…………
LOL…yes I did reinstall that gear… in fact I forgot to put the spring clip on it after I installed the front cover housing and had to remove it again. I am worried about that gear because the groove that the clip goes in wasn’t very deep. The suction hose appears to be clear but I will check it again. I am going to drill and tap the pressure hose bolt on the pump and install a gauge there temporarily so I can finally see what is happening.
I do find it comical that the hydraulic filter is last in line after fluid passes through all important parts. I am considering moving that to the suction line on the pump.
Also the pto appears to only be low range. It does not operate with transmission in neutral either. Is this a different issue or my main issue??
Disregard pictures. It’s not my day. Test port should be in banjo bolt.
I have this exact set up. But no banjo bolt. Don’t have anything to connect gauge to. The cap bolt on top of the T were the hydraulic hose from the pump to the control on left side is just the tiniest bit smaller than the gauge that I have. Standard 1/4 gauge threads. must be metric.
I removed the pump and cleaned everything out. Some metal fines but nothing major. The relief valve on the shuttle shifter was stuck open… cleared and reinstalled…
Still…no gots… :negative:
fluid comes out slowly from pump pressure line, but no clue whats happening without gauge.
MY pto says Hi and Lo but appears to only operate in low. With engine running in low it does not turn. So I assume that it operates while in gear? Is the relief valve on the pump its self? Yes the hydraulics for the blade work fine and there is proper fluid level in the shuttle clutch. We replaced the o-rings on the lines under the cover. We had to slip the fittings on first the set the cover over the top to assemble. I will check them anyway. How does the accumulator work exactly?
before it broke the first time, there was a delay between forward and reverse…
is this normal.
Success!!! …..well for 20ft….Got it running….ran forward and reverse….sounded ok… then nothing….at all. I can see fluid moving through the shuttle clutch dipstick hole. There was a huge delay before engaging forward or reverse and now nothing??? pump is not loading engine at all. usually can hear it engaging.
Also does the pto only operate while in gear, or will it run with the engine???
Literally had to shove it back in shop with bobcat again…lol
