B & S powerflow pressure washer

[wkndfirewood]

Good Afternoon = I have been searching for information on a B & S Powerflow pressure washer. i cannot find any information as to what this does. I would like to know what the small allen head screw on the manifold does. It looks like it is used to control the input of the cleaning solution tank or control the discharge pressure hose.



 

[UncleTom]

I would think that it is the pressure by pass valve that is adjustable for setting pressure.
 

[showcrop]

Why are you looking at that screw?
 

[wkndfirewood]

I just wondered if it an adjustment to control the detergent tank input to the pressure washer.
 

[wkndfirewood]

If it is how does one set the correct pressures. I was unable to locate any info on that adjustment screw.
 

[showcrop]

I doubt that your washer has any pressure adjustment. Most likely it is past its useful life. Give some info if you like.
 

[560Dennis]

Might control unloading valve from the hand grip wand . When wands off the pump goes to bypass and Governor goes to idle
Engine . Maybe
Also if you have any leaks in pressure hose that effect the valve operation because valve Id not sealed to hold bypass open