KSB SE & Co. KGaA Standardised Chemical Pump MCPK050-32-250

Removing the mechanical seal - cylindrical casing cover

Ensure preliminary steps are completed

Unscrew hexagon nuts 920.02 and push back seal cover 471 (if fitted)

Unscrew hexagon nuts 920.04, if any

Remove casing cover 161 from bearing bracket 330

Pull complete mechanical seal 433 with shaft protecting sleeve 524.01, seal cover 471 and thrower 507.01 off shaft 210

Removing the mechanical seal - conical casing cover

Ensure preliminary steps are completed

Pull shaft sleeve 524.01 with the rotating assembly of mechanical seal 433 off the shaft

Ensure all steps from Section 7.4.1 to Section 7.4.7 have been observed/carried out

Drive shaft 210 with angular contact ball bearing 320.02 and inner ring of cylindrical roller bearing 322.01 out of the bearing bracket towards the drive end

Remove disc 550.25 if grease lubrication is used

Remove support disc 550.23 of angular contact ball bearing 320.02 from bearing bracket 330

Remove cylindrical roller bearing 322.01 (roller cage) from bearing bracket 330

Remove disc 550.24 if grease lubrication is used

Bend open lockwasher 931.01 behind keywayed nut 920.21 on shaft 210

Unscrew keywayed nut 920.21 (right-hand thread) and remove lockwasher 931.01

Safety precautions for hot surfaces

WARNING — Back Pull-Out Unit Tipping Over. Risk of crushing hands and feet!

Suspend or support the bearing bracket at the pump end

Unbolt support foot 183 from the baseplate

Undo hexagon nut 920.01 at the volute casing

Pull the back pull-out unit out of the volute casing

Remove and dispose of joint ring 411.10

Place the back pull-out unit on a clean and level surface

DANGER — Excessive Temperatures

Regularly check the condition of the lubricant.

Confirm first oil change after 300 operating hours for temperature ranges

Verify oil quality specifications

Select the correct oil quantity for the model

Note any deviations or issues encountered during the procedure

WARNING — Lubricants Posing A Health Hazard And/Or Hot Lubricants

Ensure a suitable container for the used oil is on hand

Place the container underneath the screw plug

Undo the screw plug at the bearing bracket and drain the oil

Re-insert and re-tighten the screw plug after draining

Collect and dispose of any lubricants

Ensure compliance with legal regulations on the disposal of fluids posing a health hazard