IMOVILLI M155 - 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

A-M VALVE ZONE CONTROL on pumps with internal manifolds

Remove valve covers and A-M valves

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

Break down and inspect valves

Check valve covers for wear

Reassembly

Replace and lubricate O-Rings

Replace and lubricate O-ring gaskets, noting exceptions for surface treatments.

Reposition A-M valves

Reposition A-M valves correctly in heads based on pump model and fitting indications.

Tighten valve covers

A-M VALVE ZONE CONTROL on pumps with external manifolds

Remove manifolds and extract valves

Diaphragm control and replacement

Diaphragm check and replacement

Remove, clean, and check diaphragms for damage, wear, or swelling.

Disassembly and control of shaft and bearings

Remove bearing support and shaft

Shaft removal for specific models

Reassembly and Air Bleeding

Pump reassembly steps

Air bleeding procedure

Procedures for bleeding air from the pump system after maintenance.

CHECKING AND REPLACING THE OIL

Starting pump after maintenance

Steps for starting the pump after maintenance to ensure proper purging.

IMOVILLI M155 Specifications

General

Flow Rate	155 l/min
Power	0.37 kW
Frequency	50 Hz
Inlet	1.5 inch
Voltage	230 V
Inlet/Outlet Size	1.5 inch