ASV RC-100 With Loftness Head Overheating Problem

[tonyoz]

Over here in tropical Queensland the hydraulics in the RC100 had all sorts of problems. The fix from ASV was to use a light grade(32) oil. The reason being the lighter grade dissipates heat better

 

[Silvic]

Aw 32 is pretty light oil. In south fla we run aw 68. In one machine we run aw 46 but that is lightest we use. In one of our Supertrack machines we run rotella 15-40. It's been that way for 10 plus years.

You run Rotella 15-40 in a hydraulic system? Interesting.

 

[Loadstar]

Have you checked coolant and made sure it's in the correct ratio? If your coolant system is not transferring heat well could that be your overall problem?

 

[lumberjack1986]

Overly thin oil will increase heat generation due to increase pressure drop (leakage) internally in the motors and pumps.

 

[ROWmulcher]

Yes our takeuchi tl 150 with fecon came from supertrac with rotella 15-40 in the tank.its been that way 10 plus years with no issues. Weird I know but true

 

[Southern Forestry]

I have tried everything I know of. I even put an additional oil cooler on the machine, plumbed in after it leaves the radiator/cooler and before it goes back into the tank. It's a large forced air cooler from Grainger. It didn't help at all. Now that the weather has heated up down here in MS, I can run for about 20 minutes until I get to 220+. so i have to stop and let it cool down then go at it again for 20 minutes....I can't keep working like this...thus why i started another thread...I'm getting rid of this ASV and getting something else.

 

[tonyoz]

After using a Loftness head on a PT100G I now understand your problem a little more. The loftness takes a lot more hydraulic power to drive than say a Fecon cause it has more teeth for the same width cut hence the overheating problem. It maybe sitting on or near the relief valve pressure.

 

[Southern Forestry]

SO, this brings me to this question..Is it the Loftness head making it run hot or is it something wrong with the machine?? I wish i had another head i could run on it to try out,,,but i don't have another one, so i will do what i can. I put an auxiliary oil cooler on it and it didn't help one bit. It runs about 20 minutes from a cold start before it gets hot..nobody can tell me what to do to fix it, ASV just tells me that the machine was designed to run that head and offered no help or solution....After reading alot, i am not the first nor the last person to have this problem with this machine, yet nobody knows how to fix it..hence my decision to get rid of it and get another.

Thanks for the help guys and if anybody has found a fix for this problem, please share

 

[fishfactor]

Even with inadequate cooling, 20 minutes sounds really fast to get hot.

 

[tonyoz]

Question, Have you ever pressure tested the Hiflow on the machine and mulcher head?
Low oil pressure can cause overheating