Samoa UP30 Serie Servicehandbuch Seite 11

REPAIR AND MAINTENANCE PROCEDURES
TORQUES NECESSARY FOR THE PROPER FUNCTIONING OF THE PUMP
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:
CAUTION!: DO NOT OVERTIGHTEN FASTENERS.
DIAPHRAGM MAINTENANCE
REPLACING THE DIAPHRAGM:
1. Close inlet and discharge fluid valves.
2. Drain the fluid inside the pump.
3. Remove the discharge manifold screws and lift the discharge manifold.
Remove the valve seats, o-ring (if applicable) and balls.
4. Invert the pump for remove de inlet manifold screws and lift the inlet
manifold. Remove the valve seats, o-ring (if applicable) and balls.
MANTENIMIENTO DEL DIAFRAGMA
5. Remove the fluid cover screws and remove it by gently pulling back.
6. Remove the used diaphragm. For one-piece diaphragms unscrew by
pulling with the hand, in case of a diaphragm with outer piston (two
pieces) use an adjustable wrench.
Side Cover Assembly Screws
Tightening torque: 120 Nּ m (88.5 ft ּ lbs)
Tightening torque
Outer Piston Diaphragm
Tightening torque: 150 N ּ m (110.6 ft ּ lbs)
2 PIECES DIAPHRAGM
PTFE SANDWICH MEMBRANE (2 PIECES DIAPHRAGM)
7. Repeat the diaphragm removal process on the opposite side.
8.Install a new diaphragm, assembling it to the shaft by means of the
outer piston (two-piece diaphragm) or by means of the threaded bore
included in the diaphragm itself (one-piece diaphragm) as appropriate.
9.Then replace the fluid cover with the respective screws and tighten the
corresponding torque (tightening torque 120 Nm (88.5 ft lbs).
INSTALLING THE NEW DIAPHRAGMS -
ASSEMBLING PROCEDURE
CAUTION: Follow next procedure to ensure the diaphragms are
correctly installed. If not followed diaphragm bead could be
extruded out of its housing with the resulting damage over the
diaphragm bead and thus possible fluid leaks or premature
diaphragm failure.
MANTENIMIENTO DE EJE, CASQUILLOS Y JUNTAS
SHAFT, BUSHINGS AND SEALS MAINTENANCE
SAMOA Industrial, S.A. · Pol. Ind. Porceyo, I-14 · Camino del Fontán, 831 · 33392 - Gijón - Spain · Tel.: +34 985 381 488 · www.samoaindustrial.com
Screws Assembly Outlet Manifold
Tightening torque: 120 Nּ m (88.5 ft ּ lbs)
1 PIECE DIAPHRAGM
THIS SIDE
TO AIR
CHAMBER
Cover and manifolds
TORQUES
Air cap
UP30
Diaphragms
Before any intervention on the pump:
Before any intervention: DISCONNECT AIR SUPPLY OF THE PUMP.
ANTICIPATE A POSSITE LEAKAGE OF FLUID INSIDE THE PUMP.
10.Repeat points 8 and 9 on the opposite side (installation of new
diaphragm and fitting of cover on opposite side).
11.Reinstall the inlet manifold including valve seats, gaskets (if applicable)
and balls. Tighten the manifold with the bolts (progressively tighten
with the bolts before final tightening) torque 120 Nm (88.5 ft lbs).
12.Reinstall the outlet manifold including valve seats, gaskets (if
applicable) and balls. Tighten the manifold with the bolts (progressively
tighten it with the
120 Nm (88.5 ft lbs).
PTFE SANDWICH MEMBRANE (2 PIECES DIAPHRAGM)
2 PIECES DIAPHRAGM
1 PIECE
DIAPHRAGM
Screws Assembly Inlet Manifold
Tightening torque: 120 Nּ m (88.5 ft ּ lbs)
NOTE: To tighten the screws you must use a torque wrench calibrated
(see table in this page).
WARNING !
1. Correct assembly of the
diaphragm before the
diaphragm cover assembly.
Follow the procedure for replacing the diaphragm up to point 7, then
proceed as follows:
1. Remove air cover screws.
2. Lift away the air cover from the central body.
3. Now the bushing and seals can be replaced. Clean the area and
apply lubricate.
4. Fit the remaining components in reverse order.
5.Repeat the process on the opposite side of
the pump.
120 N·m (88.5 ft.lbs)
15 N·m (11 ft.lbs)
150 N·m (110.6 ft.lbs)
bolts before final tightening)
Tightening torque
Outer Piston Diaphragm
Tightening torque: 150 N ּ m (110.6 ft ּ lbs)
Side Cover Assembly Screws
Tightening torque: 120 Nּ m (88.5 ft ּ lbs)
2. Incorrect assembly of the
diaphragm.
Possible damage when
assembling the diaphragm cover.
R. 11/21 855 871
EN
torque
11