KSB SE & Co. KGaA Standardised Water Pump ETN 200-150-315

Ensure a suitable container for the used oil is on hand

Place the container underneath the screw plug

Undo the screw plug (2) at the bearing bracket (3) and drain the oil

Re-insert and re-tighten the screw plug (2) after draining

Verify oil quality according to specifications

Ensure notes and steps from Section 7.4.1 to Section 7.4.5 have been observed/carried out.

Verify that the back pull-out unit is placed in a clean and level assembly area.

Remove the rotating assembly of the mechanical seal (primary ring) from shaft sleeve 523.

Undo nuts 920.15 at casing cover 161, if present.

Remove the stationary assembly of the mechanical seal (mating ring) from casing cover 161.

Pull shaft sleeve 523 off shaft 210.

Verify notes and steps from Section 7.4.1 to Section 7.4.5 have been observed/carried out

Ensure the back pull-out unit is placed in a clean and level assembly area

Undo nuts 920.02 at the gland follower and loosen gland follower 452

Undo nuts 920.15 at casing cover 161

For variants with a clamped casing cover, undo transport locks 901.98 and remove cover plates 81-92.01 and 81-92.02 with transport locks 901.98 and lock washers 554.98. Remove casing cover 161 from bearing bracket 330

For variants with a bolted casing cover, use forcing screws 901.31 to remove casing cover 161 from bearing bracket 330

Remove gland follower 452 from casing cover 161 and remove the packing

Remove packing rings 461 and lantern ring 458, if any

Remove the impeller if clearances need to be checked.

Measure the clearance between the impeller and casing.

Is the clearance within the permitted range for the selected impeller material?

Fit new casing wear ring 502.1 and/or 502.2 if the clearance is larger than permitted.

Verify notes and steps from Section 7.4.1 to Section 7.4.6 have been observed/carried out

Place the bearing bracket in a clean and level assembly area

Undo the grub screw in the coupling hub

Pull the coupling hub off shaft 210 with a special puller

Remove pump-end bearing cover 360.01 and drive-end bearing cover 360.02

Remove hexagon head bolts 901.01 and 901.02 as well as gaskets 400.01 and 400.02

Press shaft 210 out of the shaft seat