Break-in Period

[thedigger]

Just bought a new GC2310 (diesel) with bucket and hoe. Love it. Much better than using a hand shovel. Anyway, have a question about break-in period. In the manual it says to set the RPM's to 2600 for the first 50 hours. The backhoe manual says to set RPM's to 1500 when operating the hoe. Just wondering what you other happy MF owners have to say about break-in period?
Thanks! /forums/images/graemlins/grin.gif

 

[Nasty135]

Digger, Hi and Welcome to TBN...

Well if you listen to that , It sounds like you can't or shouldn't use your Hoe for the first 50hrs /forums/images/graemlins/crazy.gif /forums/images/graemlins/confused.gif I would just play that one by ear... Follow the guide lines as close as possible but if you need the hoe, use the hoe and the rpm it works best at, whether 1500,1800,etc. the more rpm you use the more power and speed it will have...(to a point) There is a comfort zone and you will find it when you try it out.
One of the ideas behind break-in is to vary rpm's so the engine doesn't just run at one speed constantly, whether or not this has any real significance to rings & bearings other than the differences in oil pressure & cylinder pressure who knows, Although I would be sure not to run a cold engine @ 2600rpm at start-up... /forums/images/graemlins/wink.gif

 

[scott_vt]

</font><font color="blue" class="small">( Digger, Hi and Welcome to TBN...

One of the ideas behind break-in is to vary rpm's so the engine doesn't just run at one speed constantly, whether or not this has any real significance to rings & bearings other than the differences in oil pressure & cylinder pressure who knows, Although I would be sure not to run a cold engine @ 2600rpm at start-up... /forums/images/graemlins/wink.gif )</font>

I would have to Agree with Mark. I imagine your reading this out of your operating manuals ? Did you ask your dealer what he has to say on this topic ? I would think he could shed some light on all of this! /forums/images/graemlins/blush.gif

 

[thedigger]

Thanks for the replies and info. I did check with the dealer. He didn't say much, except that the hydrostatic trans works better at faster RPM's. Yesterday, the service person came out to fix hydrolic leak, and I asked him. He said to keep (after warm-up) the RPM at the 2600 for the first 50 hours at all times when operating the tractor, even when using the backhoe. He was pretty empthatic about it and explained that this is the proper way to break in the engine.

So guess I'll do what he suggests.
Sam /forums/images/graemlins/smile.gif

 

[jeepcj7]

You need to put the engine under load occasionally during the first several hours of operation to keep the cylinders from glazing over. If a tractor (or any engine for that matter) is new and never run above idle or mid idle for the first 50 hours of operation, the piston rings never get a chance to seat into the cylinder and the cylinder walls will glaze over. Once the walls are glazed, the piston rings will never seat themselves. End result is poor compression and excessive oil consumption.

 

[JerryG]

Here is what my current tractor's manual says:
"The engine may be operated at full rpm but excessive load should be avoided. If engine begins to "lug", operate in a lower gear to maintain higher engine speed."