Maintenance; Ordinary Maintenance - EBARA MMD Series Instruction Manual

L L 0 0 0 0 1 / E B – R e v . G –
L L 0 0 0 0 1 / E B – R e v . G –
CHAPTER 6

MAINTENANCE

6.1 Ordinary Maintenance

Once started the pump, check it as frequently as possible
by means of system instrumental like pressure
gauges, vacuum meters and ammeters. The pump
needs normally no maintenance, except a periodical
check for:
Absorbed power, suction head and final pressure.
Mechanical seal operation (there should be no leaks).
Bearing operation.
If a danger of frost exists, drain the pump completely
during idle periods in winter.
Before starting the unit again, make sure the rotor is not
jammed or clogged by scales or similar. If so, turn the
motor fan with a screwdriver till the rotor can freely turn.
As far as the cooling system are concerned, make sure
that no condensate has developed inside the motor,
otherwise place the motor in vertical position and make
exhaust holes shields to release condensate. This
operation must be carried out by skilled personnel only.
Pumps and system can now be primed again as described
In chapter 5.1.
1 0 / 2 0 1 7 I T A / G B / F R
1 0 / 2 0 1 7 I T A / G B / F R
9