Mas Grup
7
8.1. The Checks During the Operation
Pump must never be operated without water.
Pump must not be operated for a long time with the discharge valve
closed (zero capacity).
Precautions must be taken against flare up when the component
temperatures are over 60
C.
“Hot Surface” warnings must be placed
over necessary areas.
All the auxiliary systems must be in use while the pump is operating.
If the pump has mechanical sealing, there is no need for excessive
maintenance. Water leakage from the mechanical sealing indicates the
fact that the sealing is worn out and therefore needs to be replaced.
If the system consists of a substitute pump, keep it ready by operating it
once a week. Check also the auxiliary systems of the substitute pump.
Occuring explosive ambient inside of the pump must be prevent. The air
of the pump and suction line must be drained before commissioning of
the pump. The interior of the pump contacting with pumped liquid
including gasket way and auxiliary systems must be filled with pumped
liquid.
Ensure that delivery pressure is enough.
Exceeded the allowable using limits regarding pressure,
temperature, transportating material and motor speed may
cause explosion risk, hot and poison liquid may leak to
external environment.
Do not operate the pump at values above pressure, temperature or
motor speed values specified by manufacturer, never use improper
liquids with the pump.
8.1.1. Component Check
CAUTION
To make possible the visual control, one must be able to reach the pump
from any direction. Especially, to be able to dismount the internal units of
the pump and the engine, sufficient free space must be created around
them for maintenance and repair. Furthermore, one must make sure that
the piping system can easily be dismounted.
8.1.2. Bearing and Lubrication
Rolling bearings are not used in INM/INL type pumps. Motor bearing is
enough for countervailing all axial and radial forces. Motor bearings are
provided with lifelong heat resistant grease.
8.1.3. Mechanical Seal
Mechanical seals are used in INM/INL type pumps. Mechanical Seals are
absolutely leak-proof and needs less maintenance than soft packing.
Mechanical seal;
1. Provides leak proof operation in heavy operating conditions (in
waste water pumps, chemical process and refinery pumps).
2. Easily mountable and needs less maintenance.
3. Does not cause wearing on the shaft
4. Sealing operation does not depend on the quality of shaft
finishing.
8.1.4. Drive
Apply to the operating instructions of the motor manufacturer.
8.1.5. Auxiliary Components
Check regularly the fittings and the gaskets, replace the worn out pieces.
8.2. Maintenance Instructions in ATEX Version Pumps
Consider the local safety instructions and ATEX version pump
label specifications.
During maintenance or repair by taking sparking into
consideration, maintain or repair in environments where there is
no a possibility of ignition.
As a result of maintaining deficiently and / or faultily the pump
may be damaged and explosion risk may occur. Maintain the
pump or the pump unit regularly.
Carry out maintenance the shaft sealing components properly and
regularly. Hot or toxic pumped liquid may leak from the sealing
components not maintained regularly. In this case, the damage to
the pump, fire and explosion hazards are the likely consequences.
Fire or explosion hazards may occur as a result of overheating in
bearing housings or faulty bearing housing gaskets. Because of
that, check the level of lubrication element and periods of
lubrication regularly. Check the sounds come from the bearings
during the running regularly.
8.3. Service
Our Customer Service Department offers after-sale service. Manager
should
employ
authorized
and
trained
personnel
for
mounting/dismounting procedures. Before these procedures, one must
make sure that pump interior is clean and empty.
This criterion is also valid for the pumps which are sent to our factory or to
our service points.
Maintain the safety of the personnel and the environment in every
field procedure.
8.4. Spare Parts
The spare parts of
INM/INL
type pumps are guaranteed for 10 years by
MAS DAF MAKINA SANAYI A.Ş.
In your spare parts requests, please indicate the below listed values that
are indicated on your pump’s label.
Pump type and size:
Motor power and speed:
Pump serial number:
Capacity and head:
If you wish to keep spare parts in store, depending on the number of
same type of pumps, for two operation years, the quantities which are
listed in the table below are recommended.
Component Name
The Number of Equivalent Pumps in the
Installation
1-2
3
4
5
6-7
8-9
10+
Shaft (Key included)
(quantity)
1
1
2
2
2
3
%30
Impeller (quantity)
1
1
1
2
2
3
%30
Mechanical Seal
1
2
2
3
3
4
%50
Wear ring
1
1
1
2
2
3
%50
Rigid clamped
coupling (INL)
1
2
2
3
3
4
%50
Table 1:
Spare Part List
