Farm truck IHC PAYSTAR 5000 1978

Have trouble keeping it running and shifting. Thanks to folks on this forum I have the clutch adjusted. It has the Road Ranger 13 speed tranny with the DT 466 engine.
My heavy load for today was 55,000 lbs. gross of fill dirt. I am a geezzzzer at 73 so not the best driver......I need a certain amount of RPM'S to keep the turbo going, but need to slow down to shift or stop at a corner etc. If the RPM'S drop too much it will stall or if I pump the pedal to keep it running; I am in a position wher shifting is difficult. I double clutch--can't do it the way the pros do.....

O K Len don,t let it whip you. I am 75 and have a couple of dt466 powered ones. Have you tried starting in 2nd wind it up put a little pressure on the shift lever let off the accelerator and when it comes out of gear bump the accelerator and hold it toward 3rd. Once you get the hang of it you should go thru the gears without the clutch. The 5/6 shift requires a little more as you have to shift the range before you come out of 5th and as you got to 6th it will make the shift. After you get it figured out you will like the old truck. Sure not a fast thing on the road but will move a load. A 5000 with the chrome hard nose around the radiator is a pretty truck.

If it is an Eaton-Fuller transmission, once you get the hang of it, you'll love it. If it is a Rockwell, it is a bit less "forgiving" so to speak. Either way, as you drive it more and more, you will find that is will shift so much easier without the clutch. As near as I can tell, the only purpose the clutch serves is moving the truck from a stop.

If it is a 466 then you probably have a RT 613 transmission and they are NOT the same as a RTO 13 speed as you have three ranges and usually in low rang you shift 1-2-3 then jump to intermediate and shift 4-5-6-7-8 then into high . Now as to your working range of the 466 here i am not real sure as to where you drop under the turbo so i am going to guess that with the top end probably around 25-2600 RPM then you will want to work in the area of 18-1900 on the low end . I am more use to higher Hp. and higher torque engines . as when i ran my truck with extensive mod.'s to the engine and double the factory Hp with the turbo set up i ran my bottom was 1750 and once under that you were dead in the water as it would fall like a rock so mine would work from 2450 down to 1750 and pull like a team of mules at 1950 . Now as double clutchen this is something you learn over time and can do it with out even looking at the tach and depending on conditions sometimes one must skip shift for getting and about the other gear or two inbetween that you had to skip over . This is all done with experience . Just e thankful you only have one gear shift to work with . I learned how to drive back in the day when ya had two gear shift and two transmissions and here you surely did not wantto miss a shift or forget where you were at.

Like jm says, don't start in 1st, unless you're off road or on a steep hill and heavily loaded. On the road you should be able to stay out of the bottom three. In the lower gears don't take the rpms too high, especially empty. Each gear take it further. Feed the throttle in easy. The more power it's under, the harder it will be to pull it out of gear. It'll shift easiest if it's coasting. Also, if you're using the clutch, you don't need to push it all the way, especially if the clutch brake is in good condition. Otherwise the clutch brake will quickly be toast. One of the biggest mistakes many people make is to push the pedal down to where the clutch brake is starting to engage. Only push the clutch all the way down when you want to engage a gear after idling in neutral. Basically, you just want a little pressure on the pedal and begin to disengage the clutch on shifting. As soon as the driveline pressure is relieved a bit the shifter will move real easy. Going down, skip shifting is easiest, unless you're slowing down real slowly and have lots of time, especially at slower speeds and lower gears. Most of your gears are shifted below 30mph. That engine makes it's max torque around 12/1300 rpm and probably drops 5/600 rpm per shift so don't get carried away taking it to the max. If the engine is tired, then you'll have to push it higher. Relax and take your time and it'll work fine.