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8.1
GENERAL NOTES
A suitable maintenance is important for a longer duration of the equipment in good working condi-
tions 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 manufacture 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 opera-
tions. They also must follow the safety rules described in section 8.2.
8.2
SAFETY RULES DURING MAINTENANCE
The main rules to follow during maintenance interventions on the unit are:
1. Disconnect the pneumatic supply before replacing any component.
2. Do not wear rings, watches, chains, bracelets, etc. during maintenance operations.
3. Always use the individual protections (gloves, safety shoes, etc.).
4. Do not use naked flames, points or pins for cleaning.
5. Do not smoke.
8.3
RECOMMENDED SCHEDULED OPERATIONS
Every 50 hours
Disassemble and clean the delivery and suction filters as well as the fluid passage ducts.
working hours
Note:
If highly pigmented paints or paints with many particles tending to deposit are used,
carry out maintenance operations at shorter intervals.
Every 2.000
Overhaul the whole painting unit and replace the worn components.
working hours
Note:
The component corrosion speed varies according to the type of paint and the wor -
king conditions. To replace the worn components, follow the given instructions.
8.4
DIAPHRAGM PUMP DISASSEMBLY 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.29) and the pump lids (2 pag.29) 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.29) 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 7.8).
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
overturning the pressure regulator itself.
8. MAINTENANCE AND INSPECTION
