Fristam Pumps FKL 15, Оригинальное руководство пользователя, Страница: 29 / 40

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11.2 Maintenance Intervals
11.3 Troubleshooting Table
Interval Model Maintenance Task Chapter
Once a day All Check the oil level. See Chapter 10.4, "Oil Level Check," page 15 .
Once a day "Sealing and Quenching Liquid"
option Check the sealing or quenching liquid. See Chapter 10.3, "Inspection of Sealing and Quen-
ching Liquid (Optional)," page 15 .
2,000 h All, under severe operating condi-
tions Change the oil. See Chapter 10.5, "Oil Change," page 15 .
4,000 h All Check the displacer nut/screw for tightness
and retighten if necessary See Chapter 10.13, "Checking of the Clearances,"
page 26 .
4,000 h All, under normal operating condi-
tions Change the oil. See Chapter 10.5, "Oil Change," page 15 .
When necessary All Replace the shaft seal. See Chapter 10.7, "Shaft Seal Replacement,"
page 16 .
When necessary All Replace the coupling. See Chapter 10.11, "Coupling Replacement,"
page 25 .
When necessary All Replace the motor. See Chapter 10.12, "Gear Motor Replacement,"
page 25 .
According to
manufacturer's
specifications All Lubricate the motor bearings;
For additional maintenance intervals for the
motor, please see the motor supplier docu-
mentation. See Chapter 10.6, "Lubrication of Motor Bearings,"
page 16 .
Table 26 Maintenance intervals
Problem Possible Cause Remedy
Pump either does not pump or pumps
irregularly. Pump interior not completely filled with liquid;
pump interior not vented; discharge valve closed. Fill pump interior with liquid;
open discharge valve.
Suction line blocked or clogged. Open or clean suction line.
Pump with geodesic suction head
1
: liquid
falls at standstill and casing runs dry.
Install foot valve in suction line.
Suction line leaky; seal on pump cover leaky and
drawing in air. Seal suction line; replace cover seal.
Air pocket in suction line. Lay suction line as straight as possible and at
steady incline.
Pump blocked; foreign objects in pump. Clean pump interior; perform visual inspection;
consult
Fristam .
Viscosity of pumping medium too high;
medium does not flow well because too viscous. Consult Fristam .
Coupling punctured due to
overloading. Consult Fristam .
Flow rate too high. Pump oversized. Consult Fristam .
No regulating valve behind discharge port. Install regulating valve; add throttle control;
reduce motor speed.
Flow rate too low; discharge head too low. Selected pump too small; motor speed too low
due to incorrect voltage. Consult Fristam ;
connect according to motor rating plate.
Suction line leaky and drawing in air. Seal leakiness.
Viscosity of pumping medium too high (too vis-
cous). Possibly convert to heating; consult Fristam .
Rotor wear; clearance too large. Repair.
Back pressure too high; relief valve (if supplied)
regulates incorrectly. Set relief valve correctly.
Direction of rotation incorrect. Correct pipe and electrical connections.
Table 27 Troubleshooting table