page 17 of 24
Document: U99_001
6.5 Shut-down
6.5.1
Safety instructions
The VdE rules, the corresponding EU-rules as well as all national valid rules must be observed.
Pay attention to
2. Safety
.
6.5.2
Switch-off
Disconnect aggregate from power supply!
Secure against unintentional restarting! If combustion engines are used, stop fuel supply and
disconnect batteries, respectively remove spark plugs.
6.5.3
Draining
Drain pump and conduit, under consideration of possible hazards by pumping medium, at the hexagon plug screw in the
lowest position. Pay attention to personal- and environment protection!
- The drainage and the venting are only admitted during the standstill of the pump
- The pump must be without pressure
6.5.4
Preservation
see
3.3.2. Continued preservation
6.5.5
Storage
see
3.4. Intermediate storage
6.6 Restarting
Restart according to instructions.
6.3.1. Commissioning
.
Pay attention to the observance of the lubricating periods of
pumps and pump aggregates.
7.
Maintenance and Servicing
7.1 General instructions / Safety instructions
The safety instructions in this manual and of the operator as well as national norms currently in force are valid for service-
and maintenance works.
Consider also operation- and assembly manuals for all assembled parts of plant.
7.2 Manufacturer´s recommendation for spare parts according to DIN 24296
The manufacturer recommends to have in stock the spare parts recommended to DIN 24296, as per below chart.
The indication of quantity is for continuous operation of 2 years.
No.
Spare Part
Number of pumps ²
)
(including stand-by-pumps)
2
3
4
5
6 / 7
8 / 9
>10
Quantity of spare parts
1
1)
Impeller
1
1
1
2
2
2
20%
2
Wear ring
3)
2
2
2
3
3
4
50%
3
Shaft with key & safety elements
1
1
1
2
2
2
20%
4
Radial bearing (Set)
1
1
2
2
2
3
25%
5
Packing ring
3)
(Set)
4
4
6
6
6
8
100%
6
Mechanical seal complete
/ Lip seal
1)
(Set)
1
1
2
2
2
3
25%
7
Gasket for Pump casing (Set)
4
6
8
8
9
12
150%
8
other Gaskets
4
6
8
8
9
10
100%
9
Coupling/Transmission elements
1
1
2
2
3
4
30%
1)
Optional
2)
If a spare part can be used for different pumps of the plant, the quantity of this part depends on total quantity of pumps
3)
contained in pump order-related, only.
Chart 5: Recommendation to stock of spare parts