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Table of Contents
- 1 Diaphragm Pumps
- 2 Tested Control in the A-M Valve Zone
- 3 Reassembly
- 4 Diaphragm Control and Replacement
- 5 Cylinder Control
- 6 Disassembly and Control of Shaft and Bearings
- 7 For Pumps with a through Shaft
- 8 Pump Shaft Control
- 9 Air Bleeding
- 10 Checking and Replacing the Oil
- 11 Level Verification
- 12 Oil Change
- Download this manual
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.
Imovilli Pompe S.r.l.
Reggio Emilia – Italy
www.imovillipompe.it
WORKSHOP MANUAL
DIAPHRAGM PUMPS
Manuale d'officina – Pompe a membrana
1/11
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Table of Contents
Summary of Contents for IMOVILLI D Series
- Page 1 Imovilli Pompe S.r.l. Reggio Emilia – Italy www.imovillipompe.it 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...
- Page 2 Imovilli Pompe S.r.l. Reggio Emilia – Italy www.imovillipompe.it 2.0 Tested control in the A-M valve zone 2.1 Check that the support surfaces of the A-M valves on the head do not show any sag due to the "floating" of the valves themselves.
- Page 3 Imovilli Pompe S.r.l. Reggio Emilia – Italy www.imovillipompe.it 3.2 Reposition the A-M valves in the head following the original scheme. We remind you that for the M25-29-35-60 pumps, the Intake valves must be placed (with the real cap towards the diaphragm) in the deepest seat;...
- Page 4 Reggio Emilia – Italy www.imovillipompe.it 4.0 A-M VALVE ZONE CONTROL on pumps with external manifolds (MINI – M155 – D series – IP series) 4.1 Remove the intake and delivery manifolds and extract the valves 4.2 Proceed as in points 1.2 and 1.3 5.0 Reassembly...
- Page 5 Imovilli Pompe S.r.l. Reggio Emilia – Italy www.imovillipompe.it 6.0 Diaphragm control and replacement 6.1 For the diaphragm replacement operation, position the pump as shown, unscrew the diaphragm locking pin and remove the diaphragms. After having thoroughly cleaned them, proceed to...
- Page 6 Imovilli Pompe S.r.l. Reggio Emilia – Italy www.imovillipompe.it ATTENTION: The exhausted oil is toxic and polluting. In particular, oil, especially if used, can cause skin cancer if repeatedly left in contact with the skin for prolonged periods. Although this is unlikely unless you are using daily oil, it is recommended to wash your hands thoroughly with soap and water as soon as possible after handling used oil.
- Page 7 Imovilli Pompe S.r.l. Reggio Emilia – Italy www.imovillipompe.it Disassembly and control of shaft and bearings 8.1 After removing the cylinders, remove the bearing support and then the shaft. (The tool for removing the shaft shown in the figure is available on...
- Page 8 Imovilli Pompe S.r.l. Reggio Emilia – Italy www.imovillipompe.it 8.2 For pumps with a through shaft Protect the oil seal with bush (available on request, see photo point 8.1) - Tap with a plastic hammer on the shaft of the opposite side until the shaft is removed, remembering the assembly direction.
- Page 9 Imovilli Pompe S.r.l. Reggio Emilia – Italy www.imovillipompe.it 8.4 Reassembly Perform the operations exactly in the reverse order, replacing all the O-Rings and gaskets. When reassembling the cylinders, position the feed holes in the direction of the transverse axis of the pump.
- Page 10 Imovilli Pompe S.r.l. Reggio Emilia – Italy www.imovillipompe.it ANNEX "A" CHECKING AND REPLACING THE OIL In diaphragm pumps, the oil contained in the crankcase performs two functions: 1. Lubrication of mechanical parts. 2. Diaohragm support during the pressure pumping phase.
- Page 11 Imovilli Pompe S.r.l. Reggio Emilia – Italy www.imovillipompe.it Keeping the maneuver with the top up until more air is seen. At this point the pump is ready to start b) The first start-up must always take place with the pressure canceled, the suction line connected to a tank of adequate capacity and containing water and possibly with a rotation speed lower than the maximum.