Hello to all,
Make Model: Grass Hopper 52" cut Model 718D, Serial 291101
Questions:
1) I am new to this forum and don't see many 'new' threads. Is this forum is still active?
2) Can someone tell me what the year and make/model of my hydraulic pump and final drive is?
Problem:
There is 'very little' forward or reverse motion to the left drive wheel. I jacked the mower off the ground and started engine. The right wheel spins forward and reverse as normal, the left wheel just rotates slowly in forward and reverse with little power or speed.
History:
The final drive in question had been leaking hydraulic fluid (Would empty the reservoir in an hour of mowing). I would carry fluid with me and add when stopped moving to get back to the garage. IE: Ran low/empty a few times.
The leak was found to be caused by breached gaskets in the final drive casing pieces.
I disassembled the final drive, installed new gaskets and reassembled, with new filter and fluid.
The leak stopped, but now have new 'problem' (see above).
Diagnostics, so far:
I am in NY. I called a GH dealer whom would actually talk to me, in Florida, and the mechanic told me to jack the unit and let run until fluid bled air from the drive. This did not help.
He then said the pump must be failing. He told me the pump must be failing and to start with taking the 'top' off the pump and look for damage??? I took the 5 bolts out and lifted the top housing (containing filter) off. All I see is the parking brake lever hovering over a couple of small stainless steel BBs sized balls in a seat. If I spin the tire, I can see these balls moving up and down, depending on which way I spin the tire. I also see the pump cooling fan attempting to turn, IE: Nudging.
Questions:
3) Is it possible to reassemble the drive improperly? IE: can parts go back together in the wrong order or position and still be able to bolt together the housing? I was working off a blowout diagram that was not 100% clear. The kind Florida dealer faxed it to me.
4) Could running the pump without fluid damage the pump? Where would I find this damage?
Seems TOO coincidental that just after I worked on the drive, the pump fails?? I had been just adding fluid for quite some time and drive always worked well, after adding the fluid...
I await your comments/help/experiences...
Thanks,
Larry
Make Model: Grass Hopper 52" cut Model 718D, Serial 291101
Questions:
1) I am new to this forum and don't see many 'new' threads. Is this forum is still active?
2) Can someone tell me what the year and make/model of my hydraulic pump and final drive is?
Problem:
There is 'very little' forward or reverse motion to the left drive wheel. I jacked the mower off the ground and started engine. The right wheel spins forward and reverse as normal, the left wheel just rotates slowly in forward and reverse with little power or speed.
History:
The final drive in question had been leaking hydraulic fluid (Would empty the reservoir in an hour of mowing). I would carry fluid with me and add when stopped moving to get back to the garage. IE: Ran low/empty a few times.
The leak was found to be caused by breached gaskets in the final drive casing pieces.
I disassembled the final drive, installed new gaskets and reassembled, with new filter and fluid.
The leak stopped, but now have new 'problem' (see above).
Diagnostics, so far:
I am in NY. I called a GH dealer whom would actually talk to me, in Florida, and the mechanic told me to jack the unit and let run until fluid bled air from the drive. This did not help.
He then said the pump must be failing. He told me the pump must be failing and to start with taking the 'top' off the pump and look for damage??? I took the 5 bolts out and lifted the top housing (containing filter) off. All I see is the parking brake lever hovering over a couple of small stainless steel BBs sized balls in a seat. If I spin the tire, I can see these balls moving up and down, depending on which way I spin the tire. I also see the pump cooling fan attempting to turn, IE: Nudging.
Questions:
3) Is it possible to reassemble the drive improperly? IE: can parts go back together in the wrong order or position and still be able to bolt together the housing? I was working off a blowout diagram that was not 100% clear. The kind Florida dealer faxed it to me.
4) Could running the pump without fluid damage the pump? Where would I find this damage?
Seems TOO coincidental that just after I worked on the drive, the pump fails?? I had been just adding fluid for quite some time and drive always worked well, after adding the fluid...
I await your comments/help/experiences...
Thanks,
Larry
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