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7.
MAINTENANCE
7.1
Pre Maintenance Cleaning
Pump maintenance should only be carried out by authorised qualified
personnel with appropriate metering pump and system maintenance
experience.
The suction and discharge lines must be isolated and pipework de-
pressurised and drained of chemicals.
Flush the pump liquid head internals to remove all chemical residue.
Clean the pumps exterior to ensure chemical free surface.
Check that appropriate chemical handling and cleaning standards have
been met.
CAUTION:
A
CROMET
RETURNED FOR MAINTENANCE THAT HAS NOT BEEN SUITABLY CLEANED
It is an Acromet Quality Assurance policy that all equipment returned for repair or
service be supplied with a completed copy of the 'Equipment Decontamination Advice'
form, as shown on page 37 of this manual.
7.2
Lubrication
7.2.1
Change oil after 750 hours of operation and at 4,500 hours intervals
thereafter.
The following are recommended grades:
SHELL
BP
MOBIL
CASTROL
7.2.2
Fill oil until oil starts to overflow from the filler port.
Oil volume
7.3
Suction & Discharge Valves
7.3.1
During routine maintenance, valves should be dismantled and
checked. Replace worn ball checks and valve seats. When pumping
clean liquids of moderate viscosity, valves will give many years of
trouble free service.
applications where discharge pressure is high, liquid viscosity low or
solids are present.
NOTE: Should it be necessary to service the valves, cleanliness is essential
and care should be taken to avoid damaging components.
Refer to valve drawing at end of manual prior to dismantling.
7.3.2
When reassembling, ensure that all O-Rings, ball checks and ball
stops are in the correct position. Failure to fit ball stops can result in
closed head situation and severe pump damage.
MP2500
(A
) P
L
UST
TY
TD IS UNABLE TO ACCEPT ANY
:
OMALA 320
:
GR-XP-320 ISO
:
MOBIL GEAR 632
:
ALPHA SP 320
:
450 ml
However, valve life can be reduced in
Updated January 2017
M
P
ETERING
UMP
.
Page 8
Series 2500
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