5 Installation/Dismantling
28 of 44
4STQ
2580.821/04-EN
5.4.4 Removing the C055/065M1-4STQ double cartridge seal
The rules of sound engineering practice and the pump manufacturer's general
provisions apply. Tidiness and cleanliness are essential for proper execution of the
installation work.
ü
The operating manual for the pump is available.
ü
The back pull-out unit of the pump has been removed from the pump casing and
safely positioned and secured in a horizontal position.
ü
The impeller and keys have been removed from the pump shaft.
1. Remove circlip 932.53 from discharge cover 163.
2. Use the radial groove in shaft sleeve 523 to remove the mechanical seal
cartridge. Remove evenly, using a suitable extraction tool.
3. Carefully pull the complete cartridge mechanical seal off the shaft.
4. Remove O-rings 412.54/.55/.56 from discharge cover 163 and, if necessary,
remove O-ring 412.06 from the shaft sleeve 523 of the mechanical seal.
5. Clean the pump components in the area of the mechanical seal, pump shaft 210,
discharge cover 163 and bearing bracket 330. Check for any damage.
Further dismantling of the mechanical seal is carried out at KSB.
5.4.5 Removing the C120/120M1-4STQ double cartridge seal
The rules of sound engineering practice and the pump manufacturer's general
provisions apply. Tidiness and cleanliness are essential for proper execution of the
installation work.
ü
The operating manual for the pump is available.
ü
The back pull-out unit of the pump has been removed from the pump casing and
safely positioned and secured in a horizontal position.
ü
The impeller and keys have been removed from the pump shaft.
1. Remove circlip 932.53 from discharge cover 163.
2. Screw 2 M8 eyebolts into the front face of the shaft sleeve.
3. Carefully pull the complete cartridge mechanical seal off the shaft by the
eyebolts. Then remove the eyebolts again.
4. Remove O-rings 412.54/.55 from discharge cover 163 and, if necessary, remove
O-ring 412.59 from bearing bracket 330.
5. Tighten the hexagon head bolts 901 (3 nos.) that make up the transport lock to
a low torque (hand-tight).
6. Clean the pump components in the area of the mechanical seal, pump shaft 210,
discharge cover 163 and bearing bracket 330. Check for any damage.
Further dismantling of the mechanical seal is carried out at KSB.
Summary of Contents for 4STQ Series
Page 1: ...KSB Mechanical Seal 4STQ Installation Operating Manual...
Page 43: ......