Dosatron International Dosatron D14MZ2HY

Ensure no tools are used during the procedure

Has the pressure dropped 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)

Allow the pressure to drop to zero

Pull downwards to remove the suction tube (Fig. 27)

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

Operate the DOSATRON to inject clean water and rinse the injection system

Pinch the component and the seal, push to deform the seal

Increase deformation to grip and pull out the seal from its groove

Clean the seal seating without using any tools

Refit the seal by hand ensuring it is not twisted

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 pump body

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 the reverse order

Refit the bell-housing and tighten by hand

Check that the bell-housing seal is not damaged