Gentlemen,
I just picked up a Kubota TG1860 mower (S/N 15047) with the D722 Diesel engine and a RCK54TG mower deck. The unit has 660 hours on the meter but had been sitting outside uncovered for 2-3 years. I managed to get the engine started without much cranking on what fuel was left in the tank. After I got the tractor home and cleaned up I did some additional checking and found a small hole in one of the radiator tubes directly in front of the battery. Someone must have put one of the battery hold down rods through it trying to remove the battery. Can this radiator core be replaced using the original top and bottom plastic tanks? A new radiator for this unit is very expensive!!
Also, The engine ran great after the original start up but now lacks power. I've replaced both inline fuel filters and flushed and refilled the tank with fresh fuel. With the key on the electric fuel pump will not supply fuel to the injector pump bleeder. Could this electric pump have failed after my initial run where the engine had plenty of full power? How much fuel flow should be supplied from the open bleeder with the bleed screw removed? A strong low pressure stream? Should both inline fuel filters be filled with fuel or just the filter on the output side of the pump before the injector pump inlet? What controls the electric pumps output pressure and does it run constantly with the key on or cut out with a pressue switch or timer?
I have not had a chance to locate a service manual for this tractor or D722 engine yet. Any information would be greatly appreciated. Thanks in advance for any help...Ed
I just picked up a Kubota TG1860 mower (S/N 15047) with the D722 Diesel engine and a RCK54TG mower deck. The unit has 660 hours on the meter but had been sitting outside uncovered for 2-3 years. I managed to get the engine started without much cranking on what fuel was left in the tank. After I got the tractor home and cleaned up I did some additional checking and found a small hole in one of the radiator tubes directly in front of the battery. Someone must have put one of the battery hold down rods through it trying to remove the battery. Can this radiator core be replaced using the original top and bottom plastic tanks? A new radiator for this unit is very expensive!!
Also, The engine ran great after the original start up but now lacks power. I've replaced both inline fuel filters and flushed and refilled the tank with fresh fuel. With the key on the electric fuel pump will not supply fuel to the injector pump bleeder. Could this electric pump have failed after my initial run where the engine had plenty of full power? How much fuel flow should be supplied from the open bleeder with the bleed screw removed? A strong low pressure stream? Should both inline fuel filters be filled with fuel or just the filter on the output side of the pump before the injector pump inlet? What controls the electric pumps output pressure and does it run constantly with the key on or cut out with a pressue switch or timer?
I have not had a chance to locate a service manual for this tractor or D722 engine yet. Any information would be greatly appreciated. Thanks in advance for any help...Ed
