Table - Samson DF250 Serie Guía De Servicio Técnico Y Mantenimiento

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The air sensors are on the inside part of the diaphragm covers. To access
them, follow the procedure for "Replacing diaphragms".
Once removed the covers following procedure:
Samson Corporation • One Samson Way • N.C. 28778 Swannanoa USA • Phone (828) 686-8511 • Fax (828) 686-8533
Repair and maintenance procedures
Ball valves replacement
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5
Air sensor (only for models with directional valve)
1. Close fluid valves.
2. Drain the fluid from inside the pump. Anticipate a drainage of fluid
from inside the pump.
3. Loosen the screws to remove the directional valve. Take special care with
the seals.
4. Remove the valve cover by loosening the screws with an Allen
wrench. Take note of the orientation of the cap, as it is critical to
replace it correctly during reassembly.
5. Install a new set of valves according to these assembly drawings.
Ensure that the ball guides are assembled, and tighten the screws with
a maximum torque (see torque table page 11).
6. Assemble the directional valve with being careful not to damage
the O-rings and tighten the screws with a maximum torque of
132 lbf·in (15 N·m).
1. Remove the side cover
2. Remove the two screws that secure the air sensor to the top.
3. Remove all components of the sensor. Clean the area.
4. Introduce new components in the order shown.
5. Fit the remaining components in reverse order. Fit the side cover and
tighten the screws.
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2
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R. 10/16 855 829 13