MossRoad
Super Moderator
- Joined
- Aug 31, 2001
- Messages
- 57,686
- Location
- South Bend, Indiana (near)
- Tractor
- Power Trac PT425 2001 Model Year
Yes, that's what I do. About 1/3 throttle for 10-15 minutes while I hand shovel the steps and narrow walks where the PT won't fit.Depending on the control system you have, they all can go out of alignment.
As @m5040 mentioned a certain amount of whining at low oil temperatures is to be expected to happen due to higher oil viscosity, but try to minimize it by letting the oil warm up. I believe that @MossRoad starts his and lets it run for a while (15 min?) while he does some hand shoveling. If your pump is not in trouble, the whining sound is the oil cavitation as it is being pump and the cavitation is very hard on, and damaging to, surfaces.
All the best,
Peter
I also run it at full throttle almost all the time, always. Have been doing that for 20+ years. Supplies better pedal response both starting and braking, as well as better air movement around the engine for cooling, or so I'm told.