My case 1830 skid loader with Kuboda motor starts and runs great at 20F but when it gets real cold like -F it takes about 10 minutes before the charge pump warning light will go off and the hydro starts working. Is it bad on the machine to run that long with out the pump working? Once the warning light goes off it works great. Also is ok to leave the block heater pluged in for 24 hours?
- Thread starter ks willie
- Start date
Mark - IN.
Well-known Member
I'm certainly no expert on a skidster, but are you sure that the pump, I assume mechanical pump isn't moving hydraulic oil and its not really a matter of some really cold and thick hydraulic oil? Its been pretty cold old lately, and I've got a couple of Deere with loaders, and the colder it gets, the longer it takes to thin out the oils, and the pumps are pumping some thick oils. One thing's for sure, with tractor mainetnance coming up real soon, I will be changing the hydrauic oils and filters.
As far as block heaters go, if its that cold, I'm not sure that it will hurt if its not superheating antifreeze, and I can't think that it is. Might take its toll on the element though. There are all kinds of heaters. Block heaters, inline hose heaters, battery heaters, and I'm not sure that they make electric dipsticks anymore, but they used to. The dipsticks are the only ones that I ever heard were potentially harmful, and I'm not so certain that was the truth. Might've been though. Might not have. Its the only one I never tried.
Mark
As far as block heaters go, if its that cold, I'm not sure that it will hurt if its not superheating antifreeze, and I can't think that it is. Might take its toll on the element though. There are all kinds of heaters. Block heaters, inline hose heaters, battery heaters, and I'm not sure that they make electric dipsticks anymore, but they used to. The dipsticks are the only ones that I ever heard were potentially harmful, and I'm not so certain that was the truth. Might've been though. Might not have. Its the only one I never tried.
Mark
notjustair
Well-known Member
Block heaters occationally catch fire and burn down a shed. I don't know anyone that has had this happen. I have a couple that I leave in 24/7 - the loader tractor and the diesel generator.
I know that the hydro light in a 7800 will do that when it is cold. There are instructions to loop two of the outlets together and then lock the lever on to warm up the hydro in this situation. Is there something you are to do when it is that cold to help it heat? Does it mention it in the manual? It does in the Deere book.
I know that the hydro light in a 7800 will do that when it is cold. There are instructions to loop two of the outlets together and then lock the lever on to warm up the hydro in this situation. Is there something you are to do when it is that cold to help it heat? Does it mention it in the manual? It does in the Deere book.
Steve@Advance
Well-known Member
Not familiar with that particular model, but sounds like the hydraulic pump is losing it's prime and it would be running dry all the time the warning light is on. I suspect the pump is a dry sump, meaning the pump has to draw oil up out of the tank before it can start pumping. So, it's running, up to temperature, oil is thin. Shut it off, thin oil drains back to tank, gets cold, and is very difficult to draw back up to the pump.
Maybe someone knows, or find a schematic, see if there is a check valve in the suction line to prevent this. It could also be that the pump is getting weak or possibly a leak on the suction side of the pump.
Maybe someone knows, or find a schematic, see if there is a check valve in the suction line to prevent this. It could also be that the pump is getting weak or possibly a leak on the suction side of the pump.
Whichester1
Member
Might check with your dealer or operators manual and see if synthetic oil is allowed. It is more expensive and more prone to leak but does not have pump ability (term engineers use) problems in cold weather. Might be cheaper and easier in the long run if synthetic is okay for your machine.
Blackhole49
Well-known Member
- Location
- White Lake MI
In this weather (MI) I never unplug my hydro-static Kubota snow blower tractor. I also cover the hood with an old quilt. The heater is thermostatically controlled and keeps the engine at +-160*. The hydraulics don't make any noise when I start it. It is in an unheated pole barn.
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