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Hi Cliff:
My experience is that the pump pressures prevent the engine from starting, so we hold the trigger while starting.
My brother has cut a wedge of wood that he uses to jam the trigger open to bypass the problem. It can get a bit wild if the wand is not secured when the unit is started..
after making the water connections, be sure to hold the trigger open on the wand for a couple of minutes before starting. All the air must be removed from the system before it can create pressure.
Sounds like the unloader valve built-in to your system is sticky. Try lowering the pressure of the regulator to lowest setting then re-adjusting. This will place a different pressure /load on the valve. Also when you store your unit, displace the water in the pump with oil so that lubricant will prevent the unloader from sticking. If you continue to have problem, replace the unloader. Good luck
You need to keep the trigger pulled every time you start and you need to run the water for 3-5 minutes wide open before you start. Zero air should be in the line or this could cause it to **** out. You probably damaged the pump at this point.
When you run the unit and shut if off, release the pressure from the spray wand before trying to restart the engine. This built up pressure will cause it to be very hard to start as you have found out. If it does not start on the second pull release the pressure again. Another option is do do what I did on mine. I simply put a pull tie on the handle so I can pull the trigger back and use the pull tie to hold the trigger open. Make sure if you do this, that you remove the high pressure orifice from the end of the wand before attempting to start the engine. Otherwise the pressure will come on abruptly and could injure you or do property damage.
I am afraid that is how they work even electric ones wont start unless you squeeze the trigger ,once they are running you should be ablr to release the trigger , and then squeeze it again whilst running . if yours dies when you release the trgger while motor is running -----good chance you are working at too high pressure. but to start you have to release all the internal pressure
get someone to keep the trigger pulled while you try to start it , its probably got presure trapped between the trigger and the pump.
alternatively turn off the water to the pump, pull the trigger to release any pressure trapped.
start the engine , allow engine to warm up, increase revs on engine then turn on water, should be ok then. Unless you have a problem with the engine that is!
common for not starting unless trigger engaged as you are turning the pump as well as engine creating pressure,as for stalling pump has unloader valve which is probably in need of grease(use good silicone grease)this allows water to ciculate when trigger released.
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