Installation, Operating and Maintenance Instructions (Original Instructions) 25
VMS Vertical Multistage Pumps
25
8 Operation
8.1 Operation
The pump is controlled externally and therefore does not need any operation guidance.
9 Maintenance
9.1 Introduction
Observe the general safety precautions for installation, maintenance and repair.
Regular maintenance is necessary for the correct operation of a pump. Please contact your supplier for
maintenance of the pump.
9.2 Lubrication
Standard motors, with a maximum power of 7.5 kW, are provided with maintenance-free sealed bearings.
Motors with lubricating nipples must be lubricated after 2000 hours. If the pump works under extreme
conditions, such as high vibrations and temperatures, the motors must be lubricated more often.
Use a lithium-based -30 °C / 160 °C bearing lubricant (about 15 grams).
When the pump is delivered without a motor and tted with another brand, or the standard motor is replaced by
another brand than Sulzer, please consult the maintenance instructions of the motor supplier.
ATTENTION! Also follow the instructions in § 7.2 Mounting a motor on the pump.
9.3 Maintaining the pump for an extended period of non-operation
To protect the seals from seizure, turn the shaft every three months
1
.
Protect the pump if there is a risk of frost. Proceed as follows:
1. Close all pump valves.
2. Drain each pump and/or the system.
3. Remove all plugs from the pump.
4. Open the shut-o and ll/air vent plug, if present.
1
Period may vary per application or medium. Please consult your sales representative for application details.
9.4 Torques of coupling shell - pos. 914.01
Table 15. Torques
Material Dimensions Torques [Nm]
Steel M6 16
Steel / Cast iron M8 30
Aluminium M8 22
Cast iron M10 70
To Next Page
Loading...
