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<blockquote data-quote="Justlearning" data-source="post: 129803" data-attributes="member: 23910"><p>Thank you kindly for all your help so far. Much appreciated. I have gotten farther with your help in one day than I have with 5 guys over many months.</p><p></p><p>My serial number is 522213066, F Series</p><p></p><p>Today I took off the filter and all but one line connected to the filter block (34). Removed the poppet (37) valve from the filter mount block. All the ports in the block were clean and in good condition. Spring (39) was not broken. Plunger (37) at end of spring is clean and has no scoring marks. I removed 2 lines (59 and 19) to the hydrostatic pump (44). All good. Lines were clear.</p><p></p><p>Question: Does the fluid flowing through suction line (53) have to pass through filter (9) before entering the line? if so, a clogged filter would starve the system of hydraulic fluid. I have not checked this filter yet. It got dark and has been raining off and on all day. However, I can't see if this filter was plugged, it being my problem. Reason is if the system was starved, the engine wouldn't "load-up" when I try to engage the wheels (go forward or backward). When I try to drive the wheels, the engine experiences a very heavy load to the point where it will stall if I don't let go of the drive levers. But I will inspect the filter tomorrow anyway.</p><p></p><p>Lift and tilt work perfectly normal.</p><p></p><p>Something I did notice is the fluid level in the hydraulic tank (12). It is about 3/4 empty. This is odd because the dipstick (1) shows full. However, if the filter (9) is plugged then I might be only reading the level in the tube (2). How close to the top of the tank (12) should the fluid be? I would think within a couple of inches. Do you know? Can you tell me what the charge relief valve specifically does? where does it relieve to?</p><p></p><p>Here's a thought. If just one of the hydrostatic pumps is siezed, would it prevent the other from rotating (pumping) too? If they are driven by a common drive shaft, this would be possible, would it not? This would explain why neither side works.</p></blockquote><p></p>
[QUOTE="Justlearning, post: 129803, member: 23910"] Thank you kindly for all your help so far. Much appreciated. I have gotten farther with your help in one day than I have with 5 guys over many months. My serial number is 522213066, F Series Today I took off the filter and all but one line connected to the filter block (34). Removed the poppet (37) valve from the filter mount block. All the ports in the block were clean and in good condition. Spring (39) was not broken. Plunger (37) at end of spring is clean and has no scoring marks. I removed 2 lines (59 and 19) to the hydrostatic pump (44). All good. Lines were clear. Question: Does the fluid flowing through suction line (53) have to pass through filter (9) before entering the line? if so, a clogged filter would starve the system of hydraulic fluid. I have not checked this filter yet. It got dark and has been raining off and on all day. However, I can't see if this filter was plugged, it being my problem. Reason is if the system was starved, the engine wouldn't "load-up" when I try to engage the wheels (go forward or backward). When I try to drive the wheels, the engine experiences a very heavy load to the point where it will stall if I don't let go of the drive levers. But I will inspect the filter tomorrow anyway. Lift and tilt work perfectly normal. Something I did notice is the fluid level in the hydraulic tank (12). It is about 3/4 empty. This is odd because the dipstick (1) shows full. However, if the filter (9) is plugged then I might be only reading the level in the tube (2). How close to the top of the tank (12) should the fluid be? I would think within a couple of inches. Do you know? Can you tell me what the charge relief valve specifically does? where does it relieve to? Here's a thought. If just one of the hydrostatic pumps is siezed, would it prevent the other from rotating (pumping) too? If they are driven by a common drive shaft, this would be possible, would it not? This would explain why neither side works. [/QUOTE]
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