B8200HST-D, high temperature whistle?

[Jwedd]

I am a new owner, and will need to use this tractor for stationary PTO duty, 24/7, driving a gearhead water well. I'll use the 748 rpm speed range. The gearhead will take about 640rpm at 8 hp, so I am hoping this tractor will hold up for hundreds of hours.

I do not yet have an owner's manual, but did find the B9200HST-D owner's manual. In the manual, it describes a "whistle" warning that goes off when the coolant temperature is over 212 degrees F.

Does anyone know if the 8200HST-D has the whistle warning? If so, I am wondering about installing a 12 volt relay on that circuit, and powering up a solenoid kill switch.

It seems very strange to me that the temperature info is so poorly communicated to the operater. I think I'll install some kind of aftermarket gauge to see how it's doing.

John

 

[KennyV]

Simple solution... Use a temperature sender & a Murphy gauge. couple it to the fuel shutoff. KennyV
BTW... you can also use a Murphy gauge on the oil pressure system, it will monitor the oil pressure and shut down in case of low pressure.

 

[Egon]

The whistle is on the overflow tube. Steam whistle.

 

[Jwedd]

The whistle is on the overflow tube. Steam whistle.

So it is just a mechanical noise, no electric circuit?

John

 

[Jwedd]

Simple solution... Use a temperature sender & a Murphy gauge. couple it to the fuel shutoff. KennyV
BTW... you can also use a Murphy gauge on the oil pressure system, it will monitor the oil pressure and shut down in case of low pressure.

Any off-the-shelf packages that you can recommend?

Thanks

 

[KennyV]

They are very simple systems, I have made several... Less than $100 in parts... You can even modify non murphy gauges into murphy gauges... The indicator needle on the gauge supplies the ground for the coil on the shutdown relay...
Here is a wired up system ready to hook up: Murphy-Murphy Swichgage Shutdown Panel without SV Fuel Valve - WD300LV-WD300LV
You can find them at Most any place that installs remote generator or pumping equipment. Any thing that is engine driven and has no operator present to monitor gauges.
Myself I would just fab a set up, there is not very much to make it up. KennyV

 

[Jwedd]

I think the B8200 has a pull switch to kill the engine...so I am guessing I need a fuel cutoff valve like this one on ebay 380877212054

And, a temperature switch gauge like this one on ebay 171213514068 cuts the ground to a simple relay, cutting the power to the fuel valve?

Or, is there a simpler, less expensive way to do it?

John

 

[varmint]

Yep, B8200's have a simple mechanical pull off switch to kill the engine. Seems like any 12V solenoid switch would work- not necessarily one that costs $110 or so. It is just gravity flow you have to deal with. Good luck. Those tractors have a solid, well made engine, so you should be fine. Maybe add some extra oil capacity?

 

[KennyV]

I think the B8200 has a pull switch to kill the engine...so I am guessing I need a fuel cutoff valve like this one on ebay 380877212054

And, a temperature switch gauge like this one on ebay 171213514068 cuts the ground to a simple relay, cutting the power to the fuel valve?

Or, is there a simpler, less expensive way to do it?

John

No that is Not how I would cut fuel... first it is a 24 volt valve, and you don't need a valve, use the one you have, follow the pull cable to the rack on the injector pump. You can mount a simple pull solenoid (around $25) that will do the same thing as the pull cable mount it at the injector pump where it Only pulls the fuel shut off (Not the cable).
Also shop around online you can find Murphy gauges for a Lot less... I would use Both a temp & a low oil pressure murphy gauge... run the solenoid current through a relay to keep from destroying the gauges and place a momentary pushbutton switch in your circuit to allow disabling the system during start up.

 

[Egon]

Why not a fuel valve solenoid shutoff?

 

[Jwedd]

No that is Not how I would cut fuel... first it is a 24 volt valve, and you don't need a valve, use the one you have, follow the pull cable to the rack on the injector pump. You can mount a simple pull solenoid (around $25) that will do the same thing as the pull cable mount it at the injector pump where it Only pulls the fuel shut off (Not the cable).
Also shop around online you can find Murphy gauges for a Lot less... I would use Both a temp & a low oil pressure murphy gauge... run the solenoid current through a relay to keep from destroying the gauges and place a momentary pushbutton switch in your circuit to allow disabling the system during start up.

Yep, I linked to the 24 volt model, not the 12v. I'll scout around for the pull solenoid. That was actually my first thought, rather than the pricey fuel valve.

I have never been fond of the Murphy style gauges...am thinking about a simple 210 degree fan switch, and a low oil pressure switch, with a pushbutton switch to disable, and the pull solenoid. Like you said, about $100 in parts and a few hours of time.

For gauges, I am thinking about a set of aftermarket gauges with coolant temp/oil temp (for the hydraulic fluid)/oil pressure.

I just brought the tractor home this morning, I need to study the layout and figure out where these sensors/switches can be plugged into the engine. I want a nice clean layout.

John

 

[KennyV]

Why not a fuel valve solenoid shutoff?

Because you already have a fuel shut off on the injector pump, (it's the mechanical pull cable).... & there are a lot of low priced pull solenoids available...

 

[Egon]

Does this fuel shut off work independently from the cable or must the cable be involved?

Perhaps an air shut off would work?

 

[Jwedd]

Because you already have a fuel shut off on the injector pump, (it's the mechanical pull cable).... & there are a lot of low priced pull solenoids available...

Ok finally got 30 mins with this tractor before dinner. Here's the latest:

-A pull solenoid will need about 3/4" movement to shut the flow off and stop the engine. I'll need to keep looking, that's a lot of movement
-The only promising spot for a temp sensor that I could see was the capped off heater hose outlet on the thermostat housing. It has about a 1" hex nut, undetermined threads, and not sure how much area is clear behind the cap.

I did order the Murphy temp swichgage, 2" gauge 130-250 degree readout with a 6' cable and 1/2" threaded sensor. I am probably going to get the Murphy kill switch and wire the existing oil pressure ground and temp gauge together. Looks to be the easiest way, and I don't have to mess with my own wiring diagram and ingredients. I may end up with the pricey solenoid valve, if I can't get a pull solenoid with the right specs.

John

Edit, looks like Murphy is still the only game around for long stroke kill solenoids. Yep....they are charging roughly the same for these solenoids as they are for the fancy shutoff valve.

 

[Jwedd]

Does this fuel shut off work independently from the cable or must the cable be involved?

Perhaps an air shut off would work?

The cable attaches to a lever on the injection pump, which swings a valve open and close inside the pump. It's how all the old time mechanical injectors worked...also, why the engine will keep running if the key is shut off. If it shuts off with the key, it has an electrically controlled valve in the injection pump, or a solenoid acting on the valve.

John

 

[murky]

I am a new owner, and will need to use this tractor for stationary PTO duty, 24/7, driving a gearhead water well. I'll use the 748 rpm speed range. The gearhead will take about 640rpm at 8 hp, so I am hoping this tractor will hold up for hundreds of hours.

I do not yet have an owner's manual, but did find the B9200HST-D owner's manual. In the manual, it describes a "whistle" warning that goes off when the coolant temperature is over 212 degrees F.

Does anyone know if the 8200HST-D has the whistle warning? If so, I am wondering about installing a 12 volt relay on that circuit, and powering up a solenoid kill switch.

It seems very strange to me that the temperature info is so poorly communicated to the operater. I think I'll install some kind of aftermarket gauge to see how it's doing.

John

If you have the whistle that you no longer need, I am interested. My B8200 HST radiator has nothing connected for warning.

I have a pdf of the workshop manual.

 

[Jwedd]

The parts book show it as a simple steam kettle type whistle.

PN 67800-58750 WHISTLE. Messick's has it at $99, holy cow!

Since it isn't an electronic gizmo, there isn't any kind of signal that can be picked up to shut off the engine. I'm not likely to be able to tell the Kubota from a coyote at 1/4 mile away. I'm not sure how it hooks up...I'll check tomorrow...

John

 

[KennyV]

Does this fuel shut off work independently from the cable or must the cable be involved?

Perhaps an air shut off would work?

You can leave the pull cable, and then either system will activate the injector pump fuel shut off..
The lever on the fuel shut off has the pull cable attached to it, you can connect a pull solenoid and attach that to the same lever, close to the pivot point for a short pull Or farther away from the pivot for a longer pull...
An air shut off will absolutely work.... But you already have a fuel shut off and you would have to fab an air butterfly, easiest to go with what is already there. KennyV

 

[Egon]

The cable attaches to a lever on the injection pump, which swings a valve open and close inside the pump. It's how all the old time mechanical injectors worked...also, why the engine will keep running if the key is shut off. If it shuts off with the key, it has an electrically controlled valve in the injection pump, or a solenoid acting on the valve.

John

Is this cable also used for throttle control like on the B7100?

 

[Jwedd]

Is this cable also used for throttle control like on the B7100?

No, that is a different system.

John