Xylem IM158 R04 Model SMVT - Manual (Page 26)

24 SMVT Installation, Operation and Maintenance Manual
General Disassembly
Required Tools: The following tools should be available for use during pump disassembly
and assembly. Wrenches, lifting sling, rubber mallet, torque wrench with sockets, non-
corrosive cleaning agents, and impeller shim (supplied with pump).
Warning: Lock out power supply to driver motor to prevent accidental startup
and physical injury.
Warning: Pump components can be heavy. Proper methods of lifting must be
employed to avoid physical injury and/or equipment damage. Steel toed shoes
must be worn at all times.
Warning: The pump may handle hazardous and/or toxic fluids. Proper personal
protective equipment should be worn. Precautions must be taken to prevent
physical injury. Pumpage must be handled and disposed of in conformance with
applicable environmental regulations.
Warning: Allow all system and pump components to cool before handling them
to prevent physical injury.
Note: Before disassembling the pump for overhaul, ensure all replacement parts
are available.
Mechanical Seal Replacement
Warning: Lock out power supply to driver motor to prevent accidental startup
and physical injury.
Warning: Pump components can be heavy. Proper methods of lifting must be
employed to avoid physical injury and/or equipment damage. Steel toed shoes
must be worn at all times.
Warning: The pump may handle hazardous and/or toxic fluids. Proper personal
protective equipment should be worn. Precautions must be taken to prevent
physical injury. Pumpage must be handled and disposed of in conformance with
applicable environmental regulations.
Warning: Allow all system and pump components to cool before handling them
to prevent physical injury.
Note: Before disassembling the pump for overhaul, ensure all replacement parts
are available.
1. Close all necessary suction and discharge valves.
2. Drain the liquid from the pump by removing the lower drain plugs and the upper vent plug.
See Figure 17.
Maintenance (continued)