Coolant fan speed???

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siduramaxde

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The new loaders have a variable speed coolant fan and my T200 does not. Is there a way to put this on my machine? The thought has crossed my mind to change pullies on the fan in my loader for “winter use” In the winter when I am plowing I see no reason for the fan to spin at “warp speed”. The only thing I can see this accomplishing is higher fuel use and noise.
 

Tazza

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Someone must have some thoughts on this. Good or bad????
I don't know a whole lot about the newer machines but i see no reason why the fan can't run at full speed. The faster it goes the more cooling it does. I see your point in winter that it doesn't need to go as fast but fuel consumption wouldn't be noticeable at all.
 

skidsteer.ca

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I don't know a whole lot about the newer machines but i see no reason why the fan can't run at full speed. The faster it goes the more cooling it does. I see your point in winter that it doesn't need to go as fast but fuel consumption wouldn't be noticeable at all.
I'm not sure how many hp the fan consumes, it would be highest at full rpm of course, I would not be surprised that that 5 hp is required. The big rigs and most cars or pickups have some sort of clutch or electric fan(s) for this reason.
If there is room for a larger pulley on the angle drive gear box then it would be easy to slow it down a percentage. Or perhaps electric fans could be fitted.
But unlike a car or other fast moving vehicle there is no ram air effect to get some free cooling.
The easiest way to know would be to compare noise and fuel consumption from a K series to a G or older loader.
Personally I suspect that fuel would not be that noticeable though they would be some quieter.
Most heavy equipment that use hyd fan drives do so to allow reversing the fan to blow out dust, leaves etc
Ken
 

siduramaxde

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I'm not sure how many hp the fan consumes, it would be highest at full rpm of course, I would not be surprised that that 5 hp is required. The big rigs and most cars or pickups have some sort of clutch or electric fan(s) for this reason.
If there is room for a larger pulley on the angle drive gear box then it would be easy to slow it down a percentage. Or perhaps electric fans could be fitted.
But unlike a car or other fast moving vehicle there is no ram air effect to get some free cooling.
The easiest way to know would be to compare noise and fuel consumption from a K series to a G or older loader.
Personally I suspect that fuel would not be that noticeable though they would be some quieter.
Most heavy equipment that use hyd fan drives do so to allow reversing the fan to blow out dust, leaves etc
Ken
When I plow snow in the winter I run the machine at full rpm (as I always do). I need the speed and the power to be able to use a 10 foot wide snow pusher. Even with 74 hp, the machine can have it's hands full with wet snow. I think I may try the larger pully in the winter and see what happens. Right now when I'm pushing snow I use about 2 gallons of fuel per hour. Is that a high rate????
 

skidsteer.ca

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When I plow snow in the winter I run the machine at full rpm (as I always do). I need the speed and the power to be able to use a 10 foot wide snow pusher. Even with 74 hp, the machine can have it's hands full with wet snow. I think I may try the larger pully in the winter and see what happens. Right now when I'm pushing snow I use about 2 gallons of fuel per hour. Is that a high rate????
2 gph sounds about right fo 75 hp
If you slowed you fan to 70% your might better our fuel economy by 5% imo.
Your not going to go wow, look at he savings, but if oud like the piece and quiet and to save some fuel and wear and tear, by all means.
I think I'd go visit a k series loader somewhere to see how much quieter they are and ask about he fuel consumption.
Ken
 

mikie

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2 gph sounds about right fo 75 hp
If you slowed you fan to 70% your might better our fuel economy by 5% imo.
Your not going to go wow, look at he savings, but if oud like the piece and quiet and to save some fuel and wear and tear, by all means.
I think I'd go visit a k series loader somewhere to see how much quieter they are and ask about he fuel consumption.
Ken
electric fan(s). think about it, mikie
 

skidsteer.ca

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the newer loaders have hydraulic powered blower fans
Yup
K series are hyd drive and variable speed based on temperature. But how much quieter are they and has anyone noticed a fuel consumption benifit?
I know in theory it should have, but how about in the real world?
Ken
 

Fishfiles

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Yup
K series are hyd drive and variable speed based on temperature. But how much quieter are they and has anyone noticed a fuel consumption benifit?
I know in theory it should have, but how about in the real world?
Ken
I find they are loud , espescally when they shift into high gear , it will scare the hell out of you sometimes , personally I don't like the idea , more wires and sensors to have problems with , more hoses and fittings to leak , another filter to change , and less room to work under the cab
 

Tazza

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I find they are loud , espescally when they shift into high gear , it will scare the hell out of you sometimes , personally I don't like the idea , more wires and sensors to have problems with , more hoses and fittings to leak , another filter to change , and less room to work under the cab
I really think they have gone the wrong way with using hydraulic blowers. I would use a thermo fan hooked up to a PWM controller to lower speed if its a concern. A thermo fan is a darn site cheaper to replace than a hydraulic motor. I agree with Fishfiles, more hoses/fittings and sensors are just asking for trouble.
Cars have worked great for years with a simple thermo fan and a temperature switch, You won't hear the fan over the noise of the engine any way.
The old saying KISS comes to mind here, *keep it simple stupid*.
 

siduramaxde

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I really think they have gone the wrong way with using hydraulic blowers. I would use a thermo fan hooked up to a PWM controller to lower speed if its a concern. A thermo fan is a darn site cheaper to replace than a hydraulic motor. I agree with Fishfiles, more hoses/fittings and sensors are just asking for trouble.
Cars have worked great for years with a simple thermo fan and a temperature switch, You won't hear the fan over the noise of the engine any way.
The old saying KISS comes to mind here, *keep it simple stupid*.
I still haven't had the chance to look into this. I have been too busy to raise the cab on the machine, but I see no reason why I wouldn't be able to fit the loader with a different size pully. I'll let you know what happens.
 
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