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There is a VR test procedure in the TM.

In 120/240 mode is the voltage discrepancy the same regardless of load? 3,600 RPM is a bit high. At no load the RPM should be 3,050 and at full load the RPM should be 3,450.

$6.51 today at my local station. Insane...

There are 4 normal sounds in the video. 1) The fan inside the inverter will be on when S1 is in Prime/Run or Start. I hear it. 2) The rapid clicking sound is the fuel pump running when S1 is in Prime/Run or start. I hear it. 3) When moving S1 to Start the K2 Start relay closes. I hear it...

After installing the new SLC100 Governor Controller did you adjust it per the -13&P Technical Manual? If not do that first. Here is a link to the procedure with some additional detail over the TM --> Governor Controller Adjustment Procedure Then... With the inverters little red switch set to...

This is true for S8 the Voltage/Phase reconnection switch. S6 the AM/VM switch can be changed while the set is running though.

You may still have a problem with the fault monitor, wiring or K8. Dirty S6 and S8 contacts can cause false overloads to occur. Cleaning them stopped the false overload from occurring but the Fault monitor failed to display the fault when it occured originally. You may want to dig it if you...

Your voltage readings are correct. 136 volts Phase to Neutral, 137 volts Phase to Neutral and 238 volts Phase to Phase. 137 volts at the outlet is expected. Remember your 804 is a 3 phase set. Normally the set puts out 120 volts Phase to Neutral and 208 Phase to Phase. To run your 240 volt...

Adjust the front panel voltage adjust so you get 120 v from a phase to neutral and see if the over voltage fault goes away.

Have you checked to be sure the voltage reconnect board nuts are all secure?

Sounds like a bum VR. I sell replacements if interested. They are in the Classifieds under Parts for sale.

Here is the 804's S1 Circuit Schedule for reference Basically S1-2,4,6,8 should have 24 volts on them all the time (Dead Crank in Normal and EPO switch pulled out) In PreHeat S1-1 should have 24 volts on it in Prime/Run Aux Fuel S1-3 & S1-5 should have 24 volts on them in Prime/Run S1-3 should...

TM Test Procedure for Libby VR.. 4-1.1 Testing (AC Voltage Regulator, P/N 01-21501-1, for MEP-804A/MEP-804B). a. Shut down generator set. b. Open output box access door. c. Note position of voltage reconnection terminal board and set FREQUENCY SELECT switch to 60 Hz position. d. Start...

The fast clicking will continue as long as S1 is in Prime/Run

Just be sure the end of the diode with the white stripe on it is attached to terminal 1 of the switch.

The 75902LV does not require any jumpers to be added to it. Simply put the diode across terminals 1 & 7 and then hook the wire harness wires up to the switch.

From what I've read one of the power stations on the island had a fire. When that happened it had a ripple effect and the entire grid went down across the island. They were able to get most of the power restored but some parts are still out. I've been in touch with a fellow S.S. member there...

Yes, the diode is required on the Electroswitch

Basically there are two components and their wiring that detect a Low Fuel fault. That being the Low Fuel Float switch and the A9 Float Switch module. The Low Fuel Float Switch FL1 is inside the fuel tank. It' comprised of 2 float switch's. The lower one FL1 detects a LOW Fuel situation. The...

The Hz meter won't work reliably unless the set is putting out 120 volts AC to the outlet.