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Idiomas disponibles
Idiomas disponibles
For proper operation of the pump and to prevent accidents which may damage equipment and in the worst case, people, you must periodically review
the torques of the diaphragms covers and the DIRECTIONAL VALVE. In the next table are shown the appropriate torques for this purpose:
Torques DF250
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.
Assemble components.
Samson Corporation • One Samson Way • N.C. 28778 Swannanoa USA • Phone (828) 686-8511 • Fax (828) 686-8533
Repair and maintenance procedures
Torques necessary for the proper functioning of the pump
Diaphragm cover
Directional valve
Valve cap
Diaphragm replacement
3
177 to 260 lbf·in (20 to 30N·m)
132 lbf·in ( 15 N·m)
70 lbf·in ( 8 N·m) composite
Tightening sequence
10
8
6
4
2
When reassembling the diaphragm lid with its nuts, please follow the
torque sequence as shown in the picture. It is crucial to not use the
required torque values until the diaphragm lid is fully approximated to the
central body using the screws.
6
5
1
3
5
7
9
4
R. 10/16 855 829
11
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