IMOVILLI M73 - 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

Procedure to remove valve covers and A-M valves from the cylinder head.

Inspect Valve Elements

Disassemble valves into elements and inspect for wear or damage.

Check Valve Covers

Tested Control in the A-M Valve Zone

Check Valve Support Surfaces

Check O-Ring Diameters

A-M Valve Zone Control on Pumps with External Manifolds

Remove Manifolds and Extract Valves

Follow Internal Manifold Procedures

Diaphragm Control and Replacement

Diaphragm Removal and Initial Checks

Procedure to remove diaphragms and perform initial inspection.

Diaphragm Wear and Damage Indicators

Identify wear signs like swelling, cuts, or erosions on diaphragms.

Diaphragm Failure Response

Actions for swollen or broken diaphragms, including oil flush or disassembly.

Shaft and Bearing Control

Remove Shaft and Bearing Support

Through Shaft Procedures

Inspect Pump Shaft Surface

Reassembly and Air Bleeding

Pump Reassembly Steps

Air Bleeding Procedure

Checking and Replacing the Oil (Annex A)

Starting Pump After Maintenance

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

IMOVILLI M73 Specifications

General

Brand	IMOVILLI
Model	M73
Category	Water Pump
Language	English