Recent content by ngrobb01

So after another couple rounds of purging the air from the system I never had a drop in fluid from the reservoir. I mowed (approx 2 acres) and had a little fluid burp out of the reservoir and pumps were running 176-180 degrees which seems hot to me. The fluid was a touch over the recommended...

Rotating the charge port 180 degrees on the left pump seems to be the fix. Both wheels are turning and the hydraulic oil is no longer frothy like there is entrapped air. I need to adjust the control arm linkage as the “neutral” position pushes the right wheel in reverse and the left arm forward...

I haven’t seen any type if diagram that shows the flow path of the hydro fluid? That might help me understand how/why it works the way it does for any future problems. The manuals seem to be lacking some good information from what I’ve seen

Here is a pic after reinstallation. The indentation on the charge cover is opposite but the ports for each pump are oriented in the same space. To me that would say they’re opposite of what they should be, and the picture I have of the left pump prior to disassembly to replace seals shows that...

Planning to do it tomorrow now (at work today). I’m fairly confident I have the charge pump on backwards on the left pump (which is the problem pump) after reviewing pictures. I’m optimistic right now that this is the reason I’m having trouble with it all.

After looking at pictures taken before/during the disassembly and reinstallation I think that might be part of my problem. It’s bittersweet to see now as I’ve already given up and loaded the mower on a trailer to bring it to the shop on Monday and now my curiosity is peaked enough to pull it...

I’m assuming you’re talking about this charge port?Yes I removed it. How would I tell if it needs to be rotated 180? I didn’t see any type of marking that would indicate a direction that it needed to face

Still having trouble purging air. Backed bypass valves out 4 turns on each side and purged multiple times with letting it sit and idle for a few minutes then turning off and letting it settle between rounds of purging. Left pump still running anywhere from 150-170 degrees, right pump...

Still having trouble purging air. Backed bypass valves out 4 turns on each side and purged multiple times with letting it sit and idle for a few minutes then turning off and letting it settle between rounds of purging. Left pump still running anywhere from 150-170 degrees, right pump...

After looking further into the purge process I only cracked the bypass valves maybe 1 full turn out instead of 3-4 full turns. I’ll give that a shot and see if it makes any difference given the amount of air introduced as you mentioned.

I overhauled my hydro pumps after a slow leak for a couple seasons now. After replacing the seals and reinstallation, I followed the procedure to purge the system while the transaxle is released, then reengaged, but still have frothy oil. I can’t find any leaks from the pumps anywhere and the...