Diaphragm Replacement - Samoa DF30 Serie Manual Del Usuario

EN
REPAIR AND MAINTENANCE PROCEDURES

DIAPHRAGM REPLACEMENT

Before any intervention: DISCONNECT AIR SUPPLY OF THE PUMP.
IT IS NOT NECESSARY TO REMOVE THE PUMP FROM THE FLUID
LINE.
1. Close fluid valves.
2. Drain the fluid inside the pump. Anticipate a drainage of fluid from inside
the pump.
3. Remove the directional valve while being careful not to damage the seals
shown in the figure.
4. Remove the diaphragm cap.
NOTE: To tighten these screws you must use a torque wrench calibrated
to (see torque table in this page).
5. Remove the cover by gently pulling back.
6. Remove the used diaphragm and place the new one in the proper position.
7. Mount the side covers again following the tightening sequence and
torque (see torque table page 8, 10 and 12).
PUSHING ROD
Remove the side covers, following the procedure to "Replace diaphragms".
Once the shaft is visible, use the following procedures:
1. Remove the shaft from its housing by pulling it from one end.
The Teflon® sleeve is threaded into the body. To remove use snap ring
pliers in the two holes indicated in the figure.
2. Once the cap has been removed, remove the quad ring inside the pump body.
3. Replace the kit following the correct order shown in the assembly
drawing.
4. Mount the side covers again following the tightening sequence and
torque(see torque table page 8, 10 and 12).
14
855 837 R. 12/17
SAMOA Industrial, S.A. · Pol. Ind. Porceyo, I-14 · Camino del Fontán, 831 · 33392 - Gijón - Spain · Tel.: +34 985 381 488 · www.samoaindustrial.com
3
1
3
2
4
6
5
2