EN-39
RDV - RGV - RCV
RBV - RNV - REV
VERTICAL PUMP
ENGLISH
8.2.
PERIODIC CHECKS
CAUTION!
Disconnect the power supply before any installation, maintenance and disassembly work, and ensure
it cannot be accidentally restored.
IMPORTANT!
It is mandatory to periodically check that the electrical equipment or devices used for the on-board
machine system are earthed and/or double-insulated by construction.
8.2.1. LUBRICATION
CAUTION!
For lubrication operations, wear appropriate PPE (gloves, goggles and possibly clothing), depending on
the safety data sheets of the products used.
8.2.1.1.
Lubrication with grease
Periodically, every 2500 hours of operation, replace the lubrication grease of the bearings.
For grease lubrication, see Table 10 (Paragraph "LUBRICATION WITH GREASE").
8.2.2. FLUSHING
Consult APPENDIX A and check, depending on the version (see paragraph "PUMP IDENTIFICATION CODES"), that the flow
rate, pressure, level and / or temperature are correct.
8.2.3. PERFORMANCE
Check periodically or after maintenance work and / or any changes to the layout of the system, that the pump performance
is as defined in the pump datasheet and the performance curves of the same. (Also consult the Chapter “FEATURES”).
8.2.4. MOTOR
Check that the power absorbed by the electric motor is within the plate limits.
Periodically check the efficiency of the electrical protections and the integrity of the connections.
8.2.5. PROTECTIONS
Check periodically and after every maintenance operation that the protections are present and correctly fixed: coupling
guard, seal guards and, where present, flange protections, pipes and any other element provided to guarantee the safety
of the operators (See Paragraph "INSTALLATION OF PROTECTIONS").
8.2.6. MOUNTING CLEARANCE
8.2.6.1.
WEAR RING (FOR RB-RD PUMPS ONLY)
Check the wear ring conditions and its clearance periodically and/or in case of performance loss. Here below a chart
showing the nominal values of the mounting clearance that are likely to increase of even 50% in case of long-term use
of the pump. The possibility of effectively bearing this increase depends on the pumped liquid features and the running
conditions. For higher wear levels it’s recommended to replace the part.
b
D1
(
D2
D3
0 -0.1
)
