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Remove air filter assembly. Disconnect fuel line from carburetor and drain old fuel into suitable container to discard. Fuel Shut Off in the On position. If fuel has gelled up in the tank or lines, add small amount fresh fuel in fuel tank, swish around several times and flush until clean.
Loosen and remove Carb Mounting nuts, throttle linkage and spring (note the position). Carefully remove Carburetor and very carefully remove gaskets (do not discard until completion of final reassembly)
Disassemble Carburetor and thoroughly clean with appropriate cleaner and immediately following with compressed air. If thick gelled old fuel is present, soak disassembled carb in cleaner overnight before using compressed air is highly recommended.Reassemble carburetor, replace gaskets and install Carburetor (Reverse dis assembly) Inspect and replace air filter upon reassembly.
Inspect spark plug and replace (do not over tighten).
Add fresh fuel and perform start procedure. Initial start might take a few pulls but should start right up.
The vx510 operates with a power adapter. The 115VAC is what the adapter plugs into, and the DC numbers are for the output to the actual machine. Basically you just plug the power adapter into the UPS and it's already plugged into the machine...just like a laptop, etc.
However...the figures your are quoting of 22-26VDC at 1.5 amps do not agree with Verifone's published specs for the vx510 of 9.4 VDC at 4.0 amps (link to product specs page). I'd be very careful.
If your main power is 220Vac and it is set in 115Vac. It could be you actually fried your power supply.
Here is the reason, in common power supply after the rectifier diode when it is set in 115Vac, its circuit acts as a voltage doubler, its mean in its downsteams it actually uses around 220Vdc. And when you uses it in 220Vac it will connect directly as a rectifier.
When you set it in 115Vac and plug in 220Vac. In its downstream it could be in 440Vdc, then its an overvoltage everything that can't compensate will be damaged.
Hi Laurence, Hope you had as good a holiday as I did :-) Yes the squareish thing in there is a kind of voltage regulator. More correctly, your brushless generator is using this capacitor to regulate output voltage by means of a resonant circuit between a winding on the stator and this part. The short answer is that you more than likely need a new one and because of its particular shape the only realistic source of the new one is Makita.
I disagree with the service tech about the testability of the thing, my Fluke 112 DMM has a capacitance function that would let me tell if your capacitor was shorted ( 0 mfd reading), open (infinate mfd reading), or some value that could be compared to whatever "known" one was applicable. In this case I'd take a loose guess that the reading of a good one is something like 20 - 100 mfd, but that's just a guess.
let me know if the new capacitor doesn't get it, Carl