Samoa DF30 Manual De Operación Y Mantenimiento página 19

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 as shown in the
figure on the left, and tighten the screws
with a maximum torque (see torque table
page 18).
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).
Attention
To avoid fluid restriction and leakages, follow
the position of the ball checks guides in the
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".
SAMOA Industrial, S.A. · Pol. Ind. Porceyo, I-14 · Camino del Fontán, 831 · 33392 - Gijón - Spain · Tel.: +34 985 381 488 · www.samoaindustrial.com
Repair and maintenance procedures
Ball valves replacement
Air sensor (only for models with directional valve)
4
METALLIC
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 18).
Fit the remaining components in reverse order.
2
3
COMPOSITE
1
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