Optimum operating RPM?!?

[pjflyer]

I'm fairly new to operating all hydraulic track hoes. I have an old Insley H560-B with a Detroit 453. So far I've been running at about 1500 rpm and the machine does just fine. I recently had someone say that it's better for the machine and pumps to run at or near full tilt. Is this true? I'm sure there are many here that would know. Thanks.

 

[Scrub Puller]

Yair . . . pjflyer I know little about excavators but but 1500 rev/min is normal operating speed for 50 cycle generator sets in our part of the world . . . why run it any faster if its doing the job?

I'm sure others on here will have different opinions.

Cheers.

 

[TrentNz]

i always run full ***, but i guess im not the one paying for diesel haha

 

[06Pete]

Run where you are comfortable but don't baby that detroit they don't take well to ideling or running to slow it will start blowing oil out of the exhust.

 

[CasIns]

I've got a 453 in my Insley and run her full open when digging. Its pretty much by necessity though. The hydraulics on my machine will stall the engine pretty easily especially if its not running wide open.

As Pete says you also seem to get less oil in the exhaust, or at least less smoke.