Preparation Before Maintenance; Maintenance Interval; Pump Set; Shaft Seal - Grundfos Fire HSEF FM Europe Series Installation And Operating Instructions Manual

12.1 Preparation before maintenance

1. Close the isolating valve on the discharge side.
2. Close the isolating valve on the suction side.
3. Switch off the power supply via the controller.
Additional procedure for pump set with diesel engine
1. Close the fuel valve on the fuel tank.
2. Disconnect the positive pole first and then the negative pole of
the batteries.

12.2 Maintenance interval

The list below is not complete. See also the standard
Note
applying to the pump set.
If not otherwise stated in the standard applying to the pump set or
in the installation and operating instructions of the individual
components, we recommend that you observe the following
maintenance intervals:
Complete pump set
Action
Check that all screws are tight
Check safety devices
Check electrical connections
Check pump/driver alignment
Carry out test run
Check for leakages
Diesel engine
Action
Check fuel level in fuel tank
Check fuel system
Check exhaust system
Check cooling system
Change coolant
Check battery condition and liquid level
Check oil level
Change oil and oil filter
Replace fuel filters
Check V-belt
Replace V-belt
Check air filter
Replace air filter
Replace batteries
Controller
Action type
Test indicator light
Check cables and connections
20

12.3 Pump set

• Check that all screws are tight and not corroded.
• Check all safety devices such as coupling guard.
• Check that all electrical connections are tight and intact.
• Replace defective cables and tighten loose connections.
• Check the alignment of the pump and driver. See section
6.4 Alignment.
• Carry out a test run according to the standard applying to the
pump set. See section 10. Operation.

12.4 Shaft seal

Mechanical shaft seals are maintenance-free and almost leak-
free. In case of considerable and increasing leakage, check the
shaft seal immediately. If the seal faces are damaged, replace the
entire shaft seal. See service instructions for the pump and
section 9.1 Shaft seal run-in (stuffing box).

12.5 Bearings

The maintenance-free bearings in the pump are permanently
lubricated.

12.6 Fuel filters

The engine fuel filter must be replaced according to the
installation and operating instructions for the engine. We
recommend that you replace the tank fuel filter at the same time.

12.7 Battery

x
The batteries must be dry under all operating conditions.
x
The liquid level in the batteries must be maintained.
x
x
x
x
The water used for filling must be distilled water.
Check the health of the battery by using a refractometer or similar
tool.
12.7.1 Battery replacement
If the battery is low on power, leaking or damaged otherwise the
battery must be replaced.
Before you replace the batteries, read the general precautions in
section 12. Maintenance must be observed.
x
1. Observe the position of the cables.
x
2. Remove the black minus cables.
x
3. Remove the red plus cables.
x
4. Carefully remove the defect battery.
x
5. Install the new battery.
x
6. Mount the two red plus cables.
7. Mount the black minus cables.
x
For further instructions, see section 7.3 Connection to battery.
x
x
x
x
x
x
x
x
x
Warning
Too low liquid level can cause overheat and
explosion.