I have an older Kubota T1600 hydrostatic trans about a '94 model, under 500 hours.
Earlier this spring I was doing some routine maintenance, changed oil, greased it, and changed the fuel filter by the engine. After I changed the fuel filter I had a hard time getting all of the air out of the line. I cranked on it a few different times, then remembered reading in the manual about if it runs out of diesel you have to do something special to get the air out. I followed the procedure, unscrewing the bleeder screw on the injector pump and leaving the key in the on position until "bubbles" stop coming out, but I never saw any bubbles. I put a little pressure in the fuel tank, and thought I had all the air worked out, but apparently not?
The engine seems to start fine, but then it starts to loose RPM enough that it almost dies. It the "chugs" a little and the RPM's come back up, even in a stopped position. It might do that many times in a row, or it may start to run fine, even at full throttle. I mowed a while with it, then in mid mow, it started loosing RPM's again so I turned the PTO off and throttled it down until it caught up, then it tried to die a few more times, and then ran fine, so I finished mowing.
I already loosened the fuel cap, it didn't seem to help. I don't think its a transmission problem because it ran GREAT before I decided to change the fuel filter
In the 17(ish) years I have operated this mower it has nearly performed flawlessly every time. I had to repair the forward/reverse pedal once long ago, and replaced the belt and idler pulley a couple seasons ago. Other than that I have never had a problem with this mower. Still have the factory rear tires
I remember when I went with my dad to buy this mower, I was around 11 years old, the dealer said my dad's grandchildren would be driving this some day. Last week I let my 7 year old drive it to the barn He was right!
If someone could help me figure out the problem, I would greatly appreciate it!
-Brando
Earlier this spring I was doing some routine maintenance, changed oil, greased it, and changed the fuel filter by the engine. After I changed the fuel filter I had a hard time getting all of the air out of the line. I cranked on it a few different times, then remembered reading in the manual about if it runs out of diesel you have to do something special to get the air out. I followed the procedure, unscrewing the bleeder screw on the injector pump and leaving the key in the on position until "bubbles" stop coming out, but I never saw any bubbles. I put a little pressure in the fuel tank, and thought I had all the air worked out, but apparently not?
The engine seems to start fine, but then it starts to loose RPM enough that it almost dies. It the "chugs" a little and the RPM's come back up, even in a stopped position. It might do that many times in a row, or it may start to run fine, even at full throttle. I mowed a while with it, then in mid mow, it started loosing RPM's again so I turned the PTO off and throttled it down until it caught up, then it tried to die a few more times, and then ran fine, so I finished mowing.
I already loosened the fuel cap, it didn't seem to help. I don't think its a transmission problem because it ran GREAT before I decided to change the fuel filter
In the 17(ish) years I have operated this mower it has nearly performed flawlessly every time. I had to repair the forward/reverse pedal once long ago, and replaced the belt and idler pulley a couple seasons ago. Other than that I have never had a problem with this mower. Still have the factory rear tires
I remember when I went with my dad to buy this mower, I was around 11 years old, the dealer said my dad's grandchildren would be driving this some day. Last week I let my 7 year old drive it to the barn He was right!
If someone could help me figure out the problem, I would greatly appreciate it!
-Brando