@Vanboozin Sorry for the delayed response here. The answer depends on the series of LMI pump that you have. The Series 9 will have a Start/Stop button. The Series 7 and 1 will require that you turn the speed knob to the off position. Unplugging the pump is an option as well. Just make sure that you do not make any adjustments to the stroke knob until you have reassembled the pump.

after installing the diaphram and setting the correct pump stroke length for your model,screw the diapham in until the center begins to buckle. (this is all very clear ) then u say "shut the pump off" ( how by turning the knob until it shuts off or by unplugging from wall ) there is a huge difference here.it says the same thing in the manual and would like to have this cleared up. Thanks

Bro I have dosing pump electromagnetic .motor is working but its not discharging liquid .how can I rectify this one.plz share your experience