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Hope you got the problems solved by now! I had a faulty burner and it was replaced under warranty. The problem has returned in 100 engine hours. You are doing the right thing, bypassing the problem. The key switch sends power to parts of the ECU and then the ECU energizes the Engine Main...

I agree with your solution! The WM33 is very similar. Started having an issue at about 100 engine hours. I thought I was supposed to be the master and the tractor, the slave. However, it was the other way around, the emissions system was the master and I was the slave. EPA slave.

The WM33/37 has a mechanical injection pump, but instead of mechanical linkage to the throttle control lever, they use a variable resistor/voltage to the ECU and the ECU controls a linear solenoid with position feedback to meter the fuel and control RPM. A simple circuit should allow bypassing...

We have a WM 33. The burner was replaced by the dealer under warranty. After about 100 more engine hours, it won't regen. An independent diesel mechanic said, the high heat eventually kills one or more parts in the burner. I believe there is a way to get around the ECU emission functions. The...

I hope they treat you fairly! Mine is going to the local dealership when they have an opening. We have a small dealership and their shop stays very busy. Once our WM 33 is repaired we are going to sell or trade. First choice for next tractor is a Yanmar and second is a Mahindra.

These extremely hot regens and running high RPMs shortens the life of an engine. Burns extra fuel, as well. The EGR system dirties the engine oil and makes it more abrasive. A terrible way to treat a good engine.

Thanks! I dislike the EPA very much. I have dealt with bad emission systems on diesel trucks and now a tractor. I reckon most of us have. The chem trails are likely worse than emissions from diesel exhausts.

Our WM 33 is still under emissions warranty (7 years). The dealer replaced the entire burner and the tractor ran well; however, regenned every 2 hours, until last week when only one regen indicator came on, the second (up to temp) indicator never came on. I checked several sensors and so far...

When our WM 33 was pretty new, I measured the voltages on the connector of the difference (delta) circuit board. Starting from the left, the first pin in unused. The second pin is ground, 3rd is +5VDC, 4th is 2.5VDC, 5th is 0.525VDC (right after regen), and 6th is 2.475VDC (right after regen)...

Our WorkMaster 33 went further than safe mode. It would only run 30 seconds and shut off. Using the method of starting the engine and immediately pushing the inhibit regen toggle for 2 seconds and then pushing the toggle to force regen until both regen indicator lights illuminated, it would run...