Dosatron International Dosatron D14MZ3000

Is the pressure in the DOSATRON at zero?

Allow the pressure to drop to zero

Unscrew the blocking ring (Fig. 13)

Adjust the nut to align the eyelet peaks with the desired ratio on the scale (Fig. 14)

Tighten the blocking ring (Fig. 15)

Ensure the pressure has dropped to zero

Take off the suction tube of product (Fig. 24)

Unscrew the retaining ring (Fig. 25)

Pull downwards to remove the injection assembly (Fig. 26)

Change the following components

Ensure the pressure has dropped to zero

Unscrew the nut and remove the suction tube (Fig. 27)

Unscrew and remove the suction valve retaining nut (Fig. 28)

Rinse the valve components in clean water

Allow the pressure to drop to zero

Unscrew and remove bell-housing by hand

Remove the motor piston by pulling it up

Ensure rod and plunger piston are removed with the motor piston

Change and reassemble in reverse order

Refit the bell-housing and tighten by hand

Check that the bell-housing seal is not damaged

Ensure the pressure drops to zero

Remove the bell and the motor piston

Disconnect the water inlet and outlet fittings

Remove the lower pump body from the mounting bracket

Empty any remaining water from the lower pump body