
19
Manual 1861 Rev C p/n 001861 0000
PRESTART CHECKS
1. Ensure the pump internal and process piping
are thoroughly cleaned and free from weld
slags, metal chips, particulates, rust, dust, etc.
2. Ensure all the process piping connections and
utility piping connections are properly installed,
tightened, and supported.
3. Ensure the lubrication oil at the DE oil reservoir
of the pump is filled up to the top of the red
mark, or OL Mark, while the pump is not in
operation.
4. Adjust and set the cooling liquid flow rate listed
in
Specifications on page 4
.
5. Ensure the electrical power connection to the
motor or electrical/control panel is completed
and is ready to supply power to the motor.
OTE:
N
The correct oil level is critical to pump
performance. If the pump were operated
with low oil level, the gears and bearings
would seize by lack of lubrications. If the
oil is overfilled, the oil temperature gets
elevated and would cause high gear noise
and may affect integrity of the other parts
within the DE (Drive End) casing.
STARTING THE PUMP
1. Ensure the direction of the pump rotation is
correct: CW (Clockwise) direction, looking
from the motor. A pump rotational direction
check can be done by jogging the pump a
brief moment while checking the rotational
direction of the motor fan. If the motor rotates
CCW (Counter-Clockwise), correct the power
cable connections and recheck the rotational
direction to ensure the pump rotates in the
correct CW direction. Perform the pump
rotational direction check with the process inlet
isolation valve open.
2. With the process inlet isolation valve open,
operate the pump for 20 to 30 minutes and
then check all pump operating parameters for
any abnormality, such as excessive vibration,
high oil/grease temperatures, high cooling
liquid discharge temperature, high process
discharge temperature noise, overcurrent
draw, etc. If any abnormality is found, stop the
pump and investigate the cause.
OTE:
N
Typical causes of abnormalities come
from improper lubrication and/or improper
installation of the pump.
3. Operate the pump for 2 – 3 hours under normal
process load condition.
4. Recheck the pump operating parameters.
5. If any abnormal condition arises during initial
operation with normal process load, shut
down the pump immediately and correct the
abnormal condition before restarting the pump.
OPERATION
06