Service The Pump; Inspection; Overhaul; Service In Case Of Alarm - Goulds Pumps 2GFK3812A Installation, Operation And Maintenance Manual

Gfk series; gfv series; submersible sewage pumps
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• Statoil MedicWay 32
• BP Enerpar M 004
• Shell Ondina 927
• Shell Ondina X430
1. Fill with coolant.
Quantity: approximately 0.6 liters (0.6 quarts)
2. Replace the O-ring of the coolant plug.
3. Refit the coolant plug and tighten.
Tightening torque: 10–40 Nm (7.5–29.5 ft-lbs)

6.2 Service the pump

Type of
Purpose
mainte-
nance
Initial in-
A Xylem-authorized personnel
spection
checks the pump condition. From
the results, the personnel recom-
mends the intervals for the periodi-
cal inspection and overhaul for the
installation.
Periodi-
The inspection prevents operational
cal in-
interruptions and machine break-
spection
downs. The measures to increase
performance and pump efficiency
are decided for each application.
They can include such things as im-
peller trimming, wear part control
and replacement, control of zinc-an-
odes and control of the stator.
Over-
The overhaul lengthens the operat-
haul
ing lifetime of the product. It in-
cludes the replacement of key com-
ponents and the measures that are
taken during an inspection.
NOTICE:
Shorter intervals may be required when the operating conditions are
extreme, for example with very abrasive or corrosive applications or
when the liquid temperatures exceed 40°C (104°F).
GFK-GFV Series Installation, Operation, and Maintenance Manual

6.2.1 Inspection

WS001764A
Inspection interval
Within the first year of
operation.

6.2.2 Overhaul

Up to every year
The basic repair kit includes O-rings, seals, and bearings.
Applies to normal ap-
plications and operat-
ing conditions at me-
dia (liquid) tempera-
tures <40°C (104°F).
Up to every two years
Applies to normal ap-

6.2.3 Service in case of alarm

plications and operat-
ing conditions at me-
For information about indication values for sensors, see
dia (liquid) tempera-
tion characteristics
tures <40°C (104°F).
Service item
Action
Cable
1. If the outer jacket is damaged, replace
the cable.
2. Check that the cables do not have any
sharp bends and are not pinched.
Connection to power Check that the connections are properly se-
cured.
Electrical cabinets
Check that they are clean and dry.
Impeller
1. Check the impeller clearance.
2. Adjust the impeller, if necessary.
Stator housing
1. Drain all liquid, if any.
2. Check the resistance of the leakage sen-
sor.
Normal value approximately 1530 ohms,
alarm approximately 330 ohms.
Insulation
Use a megger maximum 1000 V.
1. Check that the resistance between the
ground (earth) and phase lead is more
than 5 megohms.
2. Conduct a phase-to-phase resistance
check.
Junction box
Check that it is clean and dry.
Level regulators
Check the condition and functionality.
Lifting device
Check that the local safety regulations are
followed.
Lifting handle
1. Check the screws.
2. Check the condition of the lifting handle
and the chain.
3. If necessary, replace.
O-rings
1. Replace the coolant plug O-rings.
2. Grease the O-rings.
Personnel safety de-
Check the guard rails, covers, and other
vices
protections.
Rotation direction
Check the impeller rotation.
Oil housing
Fill with new coolant, if necessary.
Terminal block/
Check that the connections are properly
closed end splice
tightened/connected.
Thermal contacts
Normally closed circuit; interval 0–1 ohm.
Voltage and amper-
Check the running values.
age
For an overhaul, do the following in addition to the tasks listed un-
der Inspection.
Service item
Action
Support and main
Replace the bearings with new bearings.
bearing
Mechanical seal
Replace with new seal units.
on page 11.
Alarm source
Action
LD
1. Check for liquid in the stator housing.
2. Drain all liquid, if any.
3. Check the mechanical seal unit, the O-
rings, and the cable entry, if liquid was
found.
Thermal contact
Check the start and stop levels.
6 Maintenance
Sensor connec-
13

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