IMOVILLI M30 - User Manual

Imovilli Pompe S.r.l.
Reggio Emilia – Italy
www.imovillipompe.it
Manuale d’officina – Pompe a membrana 1/11
WORKSHOP MANUAL
DIAPHRAGM PUMPS
1.0 A-M VALVE ZONE CONTROL on pumps with internal manifolds
(M25 – M29 – M30 – M35 – M 50 – M60 – M73 – M104S – M135S)
1.1 Remove the valve covers and remove the A-M valves
from the cylinder head
NOTE: The suffix A-M means "Suction / Delivery"; in
fact, the pump valves can be used indifferently in
suction and delivery
1.2 Break down the valves into the individual elements and
proceed with their inspection; if a component is
particularly worn or damaged they will need to be
replaced.
1.3 Check the inside of the valve covers: if they show signs
of wear in the contact areas with the valve caps or
damage in the plasticization, they must be replaced.

Summary

1.0 A-M VALVE ZONE CONTROL on pumps with internal manifolds

1.1 Remove valve covers and A-M valves

Remove valve covers and A-M valves from the cylinder head.

1.2 Inspect individual valve elements

Disassemble valves for inspection; replace worn components.

1.3 Check valve covers for wear

Inspect valve covers for wear or damage in contact areas and replace if needed.

2.0 Tested control in the A-M valve zone

2.1 Check valve support surfaces for sagging

2.2 Check O-ring diameters for damage

3.0 Reassembly

3.1 Replace and lubricate O-rings

3.2 Reposition A-M valves correctly

3.3 Tighten valve covers properly

4.0 A-M VALVE ZONE CONTROL on pumps with external manifolds

4.1 Remove manifolds and extract valves

4.2 Follow inspection procedures

5.0 Reassembly

5.1 Replace and lubricate O-rings

5.2 Reposition A-M valves per scheme

6.0 Diaphragm control and replacement

6.1 Check diaphragm condition for wear

Inspect diaphragms for swelling, cuts, erosions, scratches, or leaks indicating failure.

Procedure for swollen diaphragms

Procedure for broken diaphragms

If a diaphragm breaks, disassemble the crank mechanism for inspection.

7.0 Cylinder control

7.1 Inspect cylinders for scratches

Disassembly and control of shaft and bearings

8.1 Remove bearing support and shaft

8.2 Shaft removal procedures

8.3 Pump shaft surface check

8.4 Reassembly

8.4 Reassembly steps

8.5 Air bleeding procedure

Bleed air from the pump by tilting and rotating the shaft until no bubbles appear.

CHECKING AND REPLACING THE OIL

Starting the pump after maintenance

Follow procedures for initial pump start-up after maintenance to purge air and ensure functionality.

IMOVILLI M30 Specifications

General

Flow rate	30 L/min
Inlet	1 inch
Outlet	1 inch
Inlet/Outlet Size	1 inch
Voltage	230 V
Frequency	50 Hz
Material	Cast Iron
Power	750 W
Max Flow Rate	40 L/min