D7 17A fuel consumption?

Hi Team,
scan is from a book called Earthmoving Guide To Profit--early forerunner to the Performance Handbook.
Red lined area is for Track type Tractors of the era we speak of here.

Later machines have more fuel efficient engines so these charts are not really suitable for them.

D7 17A--depending on S/No as to if turbo'd or not --would be around 128HP so select the line of HP's that suit this range, ie, for 100 to 150 Hp machines a guide :-
Light work-- 3.5 to 4.5 Gph.
Medium work-- 4.5 to 5.5 Gph.
Severe work--6.0 to 6.5 Gph.

Hope this helps.
Cheers,
Eddie B.

I’m not sure what your unit will use but my d7e with a turbocharged d339t engine will use anywhere between 2-13 gph. If your making it beller and roar all day long it with some heavy pushing it WILL suck that whole tank down in a day.
It’s 100% dependent on the load it under.

I guess I need to find a way to measure the consumption (I really don't want to completely fill the tank. That would take like 6 trips to town with the cans I have). Seems like anything under 3 gph is improbable based on what you guys are saying.


[quote="DrewAbt"]If your making it beller and roar all day long it with some heavy pushing it WILL suck that whole tank down in a day.
It’s 100% dependent on the load it under.[/quote]

I definitely don't have the skill or the work available to keep it loaded up all day long. But if you lightly load an oversized diesel generator for example, it burns just as much fuel as a 60-70% load. I kind of expected the same from the D7. I'm very impressed with how fuel efficient it is.

The injector pump on my 3 cylinder RD6 motor has a plate on it saying if the 3 cylinder tractor is burning more than 3 gallons a hour it is potentially being overloaded, the same plate says if the 4 cylinder D7 is burning more than 4 gallons a hour then it is possibly being overloaded, and the same for the 6 cylinder tractor, 6 gallons a hour, that's from 1936 I should add.
Mike

I had some D7-17A 25 years pass and these machine with no turbo was using 5gh and with turbo 6gh.

The only time a crawler is under full load all day is when it is been used under constant load as in agg type applications

Dozing type applications a crawler would be lucky to spend 60% of it's time under full load as it has to keep backing up for a fresh bite

Paul

I guess I need to find a way to measure the consumption (I really don't want to completely fill the tank. That would take like 6 trips to town with the cans I have). Seems like anything under 3 gph is improbable based on what you guys are saying.


[quote="DrewAbt"]If your making it beller and roar all day long it with some heavy pushing it WILL suck that whole tank down in a day.
It’s 100% dependent on the load it under.[/quote]

I definitely don't have the skill or the work available to keep it loaded up all day long. But if you lightly load an oversized diesel generator for example, it burns just as much fuel as a 60-70% load. I kind of expected the same from the D7. I'm very impressed with how fuel efficient it is.

[quote="Layne"]I guess I need to find a way to measure the consumption (I really don't want to completely fill the tank. That would take like 6 trips to town with the cans I have). Seems like anything under 3 gph is improbable based on what you guys are saying.




I definitely don't have the skill or the work available to keep it loaded up all day long. But if you lightly load an oversized diesel generator for example, it burns just as much fuel as a 60-70% load. I kind of expected the same from the D7. I'm very impressed with how fuel efficient it is.[/quote]

Layne, just something to think about, Keeping you tank full after use will keep condensation from building up inside the tank. Enough moisture turns to water which can turn to algae over time and plug your filters and do other damage to your fuel system, Once you have the tank full, then there isn't any more work than before, keeping it full.