Injecta Taurus TM2 Serie Manual De Instalación página 9

4. MAINTENANCE
4.1 Precautions
• Before servicing pump or plant verify that all electric connections (power and control) have been disconnected
from mains and are no more fed.
• Always work wearing the required safety protections.
• Depressurize completely pump and pipes and drain the section in which maintenance is required
• Don't pour in the ambient polluting substances such as pumped chemicals, hydraulic liquid, lubricating oil a.s.o.
• Before servicing pump or plant read carefully the technical specification of the handled fluids with particular re-
spect to the actions that must be done in case of accidental contact with a dangerous fluid.
4.2 Pumphead
Every week or 40 working hours check:
• possible leakage through the plunger packing
As minimum every six months, dismount the pumphead as follows:
• Disconnect suction and discharge pipes
• Drain process liquid rom pump head and pipes
• unscrew bolts fixing the pumphead to mechanism
• dismount suction and discharge valves
and carry out the following operations:
• wash thoroughly the suction and discharge valves and verify whether any part is worn or scratched; replace
them if required
• replace plunger packing in case it is worn; grease new seals before assembling
check the plunger sliding surface where seals operate; the surface should be without scoring or scratches; when
damaged replace the plunger
4.3 Recommended spares
In order to face normal service problems and to avoid possible waste of time, we suggest to keep in stock a small
supply of the following spares:
• Suction valve complete
• Discharge valve complete
• One set of diaphragms
• Complete pump head
When ordering spares, please indicate always the model and the serial number of the pump
DosingPump.ir
rev. 4.0 EN
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