Samoa UPO3B Serie Bedienungsanleitung Seite 9

REPAIR AND MAINTENANCE
SHAFT, BUSHINGS AND SEALS
Follow the procedure for "replacing the diaphragm"
1. Replace the bushing and the seals (28, 27). Clean and lubricate
the area.
2. Fit the remaining components in reverse order.
BALLS AND SEATS
Before opening the pump follow the steps in STOPPING THE PUMP FOR
MAINTENANCE TASKS (page 6).
1. Remove the inlet and outlet manifolds.
2.Install a new set of ball (16) or seats (17, 18) according to these
assembly drawings. Tighten the manifold bolts and nuts with
8 N·m (5.9 ft.lbs) torque.
IMPORTANT: Gradually tighten the manifold with the bolts before
proceeding with the final tightening.
IMPORTANT: When doing a pump maintenance that implies manifold
disassembling and pump is fitted with PTFE o-rings (white colour), they
must be replaced by new ones in order to avoid fluid leakages.
DIAPHRAGM
Before opening the pump follow the steps in STOPPING THE PUMP FOR
MAINTENANCE TASKS (page 6).
1. UUnscrew the outlet manifold and lift it. Remove the valve seats, o-ring
(if applicable) and balls.
2. Turn the pump upside down to remove the inlet manifold screws.
Remove the seats, seals (if necessary) and balls.
3. Unscrew the fluid cover screws and remove it by gently pulling back.
4.Remove the used diaphragm. In case of two-piece diaphragms
(diaphragm with outer piston) use an adjustable wrench and apply
corresponding torque.
5. Repeat for opposite side.
IMPORTANT: Always aproximate cover screws before final tightening.
SAMOA Industrial, S.A. · Pol. Ind. Porceyo, I-14 · Camino del Fontán, 831 · 33392 - Gijón - Spain · Tel.: +34 985 381 488 · www.samoaindustrial.com
28
27
MANTENIMIENTO BOLAS Y ASIENTO DE VÁLULAS
Hard seat
assembly
18
INSTALLING NEW DIAPHRAGMS
CAUTION: Follow next procedure to ensure the diaphragms are
correctly installed. Otherwise diaphragms may be damaged,
causing fluid leaks or premature diaphragm failure.
Please note this recommendation if you notice leaks after installing
the diaphragm.
CAUTION!
1. Correct assembly of the
diaphragm before the
diaphragm cover assembly.
This side
to air
chamber
27
28
16
17
Seal
2. Incorrect assembly of the
diaphragm.
Possible damage when
assembling the diaphragm cover.
R. 09/23 855 878
1,5 N·m
(1.1 ft·lbs)
9