Coleman Powermate Generator (PM0525202.03) throttle adjustment

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Question Product: Coleman Powermate Powermate 5000W Generator Question ... it would crank for a second, then i open the choke, it would die, would not stay ...

Fixing Electrical Problems in Coleman Powermate Generators

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There may be a choke handle that should reduce the engine RPM. Otherwise contact the Coleman technical support department.

Make sure the engine RPMS are correct, and change the capacitor in the end of the alternator cover

The part No you need is
493988S Cap Fuel Tank

Voltage is adjusted by raising or lowering the engine speed (governor adjustment), however one must also pay attention to the rpm because your generator was designed to produce 120 volts at 60 cycles while turning 3600 rpm. Your electrician should have tested for htz while testing for voltage. I would recommend re-testing under load and adjust governor to turn 60 cycles to see resulting voltage.

High no-load voltage Capacitor with high capacity
Check and replace. Low no-load voltage Speed to low Check and adjust rpm Faulty rotary diodes Check and replace Breakdown in windings Check winding resistance Capacitor with low capacity Check and replace. Proper no-load but low loaded voltage Capacitor with low capacity Check and replace. if wires are connected start with the Diodes first electronics parts stores will have these in stock as well as cheeper. hope this helps

There are basically 2 possibilities that can cause this.

1) Enigne RPMs are too low. but, since you already played with the throttle, this probably isn't the case. RPMs should be about 3600 though.

2) The voltage regulator / capacitor has high ESR (resistance) or is bad altogether. Replace.

It should read 115v-120v with full load. Yes, you can slow the engine down just a little, depending on the engine, there will be a high rpm adjustment. 130v with full speed, no load, is really not too bad.

I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae

The speed will change the 'frequency' too. You need to make sure you still have 60 Hz. You may have need a voltage regulator adjustment, not a speed adjustment.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

Your RPM's are too high. There is no voltage regulator in coleman generators (generator is actually made by generac) and is 100% dependent on engine speed. There is a screw under the tank when your looking in from the recoil side. It controls the governor arm. Screw it in and it incresses the rpm, out decrease. Plug something in that draws a decent load while setting the rpms since you want it to put out 120 and 240 underload. Your idle voltage does not matter.