Kubota B7800 with bucket, counterweight. Drove heavy (8 hours/day) in recent snow. Then engine died when applying forward or reverse on the rocker switch.
Engine would still start easily, idle without dying, and respond (increase RPMs) to the throttle in normal fashion. However, as soon as forward/reverse applied, engine died. All hydraulic powered implements worked normally when idling, such as bucket, counterweight (did not test the PTOs).
No warning lights illuminated on the instrument panel (such as oil pressure or other light).
Did the following:
None of those steps fixed the problem.
Then discovered low transmission oil level. Added about a gallon of UDT oil before the dipstick came up to a mid-level reading (after running the engine). However, the engine still died when touching the rocker switch. But...
Let it sit overnight and now running fine. Moves forward and reverse in normal fashion.
My questions are
1) Is there a "kill switch" on the transmission hydraulics that would shut down the engine if the transmission oil level is low?
2) Any possibility that the symptoms are unrelated to the transmission fluid level?
Thanks for any advice.
Engine would still start easily, idle without dying, and respond (increase RPMs) to the throttle in normal fashion. However, as soon as forward/reverse applied, engine died. All hydraulic powered implements worked normally when idling, such as bucket, counterweight (did not test the PTOs).
No warning lights illuminated on the instrument panel (such as oil pressure or other light).
Did the following:
- Inspected fuel tank .... no obvious debris or water.
- Added fresh fuel.
- Replaced the paper filter on the 1st stage fuel filter and cleaned the bowl (but hardly any sediment and absolutely no water found).
- Check engine oil...adequate
- Check Air filter ... some light dust easily removed.
- Opened the water drain M12 bolt on the underneath of carriage (as per instruction manual) ... but nothing came out (neither water or fuel).
- Visually inspected the fuel lines (no leaks, breaks, kinks, or turned-off valves).
None of those steps fixed the problem.
Then discovered low transmission oil level. Added about a gallon of UDT oil before the dipstick came up to a mid-level reading (after running the engine). However, the engine still died when touching the rocker switch. But...
Let it sit overnight and now running fine. Moves forward and reverse in normal fashion.
My questions are
1) Is there a "kill switch" on the transmission hydraulics that would shut down the engine if the transmission oil level is low?
2) Any possibility that the symptoms are unrelated to the transmission fluid level?
Thanks for any advice.
