Samson DF30 Manual De Uso página 15

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.
Attention
To avoid fluid restriction and leakages, follow the position of the vall
checks guides in teh figure above. the valves cups must be placed with the
area indicated in the figure below facing the body.
The air sensors are on the inside part of the diaphragm covers. To access
them, follow the procedure for "Replacing diaphragms".
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
5. Install a new set of valves according to these assembly drawings.
Ensure that the ball guides are assembled as shown in the figure on
the left, and tighten the screws with a maximum torque (see torque
table page 14).
6. Assemble the directional valve with being careful not to damage
the O-rings and tighten the screws with a maximum torque of
44.25 lbf·in (5 N·m).
Air sensor (only for models with )
Once removed the covers following procedure:
1. Remove the two screws that secure the air sensor to the top.
2. Remove all components of the sensor. Clean the area.
3. Introduce new components in the order shown.
4. Fit the cover on the pump and tighten the screws to the body of the
pump. Maximum tightening torque (see torque table page 14).
Fit the remaining components in reverse order.
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