KSB MEGAFLOW 100-250, Operating Instructions Manual

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KSB Megaflow
21
13.4 Coupling Guard
KSB Standard, belts and pulley in accordance to its manufacturers. Intermediate part KSB standard. See Technical manual.
14.
Operation
14.1 First start-up procedure
The following items must be provided for pump first starting:
a) Pump and its driver must be securely fastened to the base.
b) Fix firmly the suction and discharge pipelines.
c) Connect and run auxiliary pipelines and connection (if any).
d) Wiring should be done upon assuring all motor thermal overload protection is securely and adequately connected and
set.
e) Check bearing for cleanliness and damp environment. Fill bearing bracket with oil in quantity and quality as specified in
chapter 9.1.
f) Check the rotation direction of driver without coupling the pump to prevent dry operation.
g) Manually check for the free running of the moving parts.
h) Check that the proper coupling alignment has been done according to chapter 12.4.
i) Mount coupling guard (if any).
j) Prime pump, that is, fill the pump and suction pipeline with water or with the liquid to be pumped, bleeding internal air
simultaneously.
k) Check that the gland cover nuts are just fitted, without tightening.
l) Fully open suction valve (if any) and close discharge valve.
14.2 Immediate steps after first start-up
Once started-up and with the pump running follow these instructions:
a) Adjust pump to its operation point (pressure and flow) by opening slowly the discharge valve shortly after pump drive
has reached its nominal speed.
b) Motor current consumption (amperage) must be controlled as well as network voltage value.
c) Assure that suction pressure value corresponds to the designed one.
d) Assure that pump runs vibration-free and without unusual noise.
e) Control bearing temperature which may reach 50
º
C over ambient temperature and summation should not exceed
90 º C.
f) Set packing by tightening gland cover nuts about 1/6 turn. Since every just performed packing requires a certain period
to set, this packing should be followed within the first 5 to 8 hours of operation and in the event of excessive leakage,
the gland cover nuts should be tightened about 1/6 turn again. During normal operation, every packing should drip.
When gaskets reach the set stage, a semestral check should be enough.
Check listing should be practiced every 15 minutes, over the first 2 hours of operation. If all tests pass, new checking
should be carried out every hour, until the first 5 to 8 running hours.
If there is any abnormality during this phase, please consult chapter 16 – Operational Problems, probable causes and
solutions.