Publicidad
Idiomas disponibles
Idiomas disponibles
DPS-70 C - DPS-70 CN DIAPHRAGM PUMPS
EN
WARNING
IF SOME SPARKS OR AN ELECTRIC DISCHARGE WERE PERCEIVED, INTERRUPT IMMEDIATELY ALL PAINTING OPERATIONS.
DO NOT USE THE SYSTEM UNTIL THE PROBLEM CAUSE IS IDENTIFIED.
Keep away from the working area all kinds of waste, of solvent container, of solvent or petrol soaked rags or clothes.
Before starting the system disconnect all the electrical connections inside the working area.
Before using the system switch off all the naked flames and pilot lights inside the working area.
Do not smoke inside the working area.
During painting operations, or if there are some vapours in the air, do not switch on or off the lights inside the working area.
Do not use any petrol engine inside the working area.
Some organic solvents or discharged toxic vapours can enter the eyes or the skin, be swallowed or inhaled, by provoking
serious injuries.
When the air engine is running, keep the face away from the exhaust.
8.7 PRESSURE RELEASE PROCESS
WARNING
1. Close the air to the gun.
2. Close the air to the pump (exhaust ball valve).
3. Make sure the recirculation pipe is not clogged.
Then open gradually the recirculation two-way valve and leave it open.
4. Hold the gun tightly and lean it on the earthed metal container, pull the trigger to release the pressure.
If an automatic gun is used, supply the rod opening control with some air under pressure.
PRECAUTION
1. To operate the pump, use some filtered air by means of an air filter with filtering section lower than 50 µm.
We recommend using a filter with condensate automatic discharge.
2. Do not make the pump idle.
3. Do not spray any paint or solvent towards the pump.
4. Do not install the pump near heat sources or in the sun. Put it far from sprinklings of water.
5. To avoid any problem after using bi-component paints, wash the pump immediately after using it other-
wise all fluid passages could be clogged and the whole installation will have to be disassembled.
9. MAINTENANCE AND INSPECTION
9.1 GENERAL NOTES
A suitable maintenance is important for a longer duration of the equipment in good working conditions and efficiency
ensuring functional safety as time goes by.
All maintenance operations must be carried out by a qualified staff. The pump design and the materials used to manufac-
ture it limit the maintenance interventions to a simple periodic cleaning.
The staff must be provided with the individual protections that are generally used for similar operations. They also must
follow the safety rules described in section 9.2.
9.2 SAFETY RULES DURING MAINTENANCE
THE MAIN RULES TO FOLLOW DURING MAINTENANCE INTERVENTIONS ON THE UNIT ARE:
• Disconnect the pneumatic supply before replacing any component.
• Do not wear rings, watches, chains, bracelets, etc. during maintenance operations.
• Always use the individual protections (gloves, safety shoes, etc.).
• Do not use naked flames, points or pins for cleaning.
• Do not smoke.
16
DPS-70 C - DPS-70 CN DIAPHRAGM PUMPS
9.3 RECOMMENDED SCHEDULED OPERATIONS
DISASSEMBLE AND CLEAN THE DELIVERY AND SUCTION FILTERS AS WELL AS THE FLUID PAS-
EVERY 50 HOURS
SAGE DUCTS.
NOTE: If highly pigmented paints or paints with many particles tending to deposit are used, carry out
WORKING HOURS
maintenance operations at shorter intervals.
OVERHAUL THE WHOLE PAINTING UNIT AND REPLACE THE WORN COMPONENTS.
EVERY 2.000
NOTE: The component corrosion speed varies according to the type of paint and the working conditions.
WORKING HOURS
To replace the worn components, follow the given instructions.
9.4 DIAPHRAGM PUMP DISASSEBLY FROM ITS BASE SUPPORT
PRECAUTIONS
BEFORE DISASSEMBLING THE PUMP, FOLLOW CAREFULLY THE INSTRUCTIONS BELOW:
a) While disassembling the pump, avoid damaging the O'rings.
b) To disassemble and reassemble the adaptors (3 pag. 22) and the pump lids (2 pag. 22) use a 5 mm
Allen wrench and a 10 mm spanner.
c) Disassemble, in this order, the lower adaptor, the upper adaptor, the side lids (2 pag. 22) by
unscrewing the socket head screw by means of the suitable spanners.
1. Refer to the PRECAUTIONS FOR THE OPERATOR about the pressure release process (section 8.7).
2. Disconnect the pump from the compressed air supply.
3. Disassemble the suction filter system from the pump.
4. Remove the recirculation pipe.
5. Disassemble the paint regulator from the pump.
6. Disassemble the pump casing from the support base by removing the four special screws.
7. Remove the lower adaptor, the upper adaptor and the lid by following this order.
PRECAUTIONS
Some paint residues could remain inside the regulator: discharge them into the paint tank by over-
turning the pressure regulator itself.
9.5 LIDS, CONNECTORS AND AIR OPERATING VALVE DISASSEMBLY
CONNECTORS AND LIDS DISASSEMBLY
Upper adaptor
Diaphragm
Rod
Lower adaptor
Lid
EN
OPERATING VALVE DISASSEMBLY
Sub Plate
Hex. socket bolt (M4)
Packings
17
Publicidad
