KSB GIW MDX, Installation & Operating Manual

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MDX [en-US]
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10.3.4 Impeller Installation

Coat the shaft threads heavily with anti-seize
compound. Do not coat the shaft sleeve faces
which contact the impeller and the step in the shaft.

Two 0.5mm (0.020 inch) aramid gaskets (400.10)
are placed between the shaft sleeve and the
impeller hub face to prevent galling and to ensure
ease of impeller removal. Stagger the gaskets so
they are not in alignment. The gaskets should be
installed dry, without grease.

Make sure that the hub face of the impeller is free
from nicks and burrs. Check the impeller threads to
ensure they are clean.

The impeller is threaded by holding the impeller
stationary while turning the shaft. Impeller lifting
jigs are available to assist in this operation.

When assembly of the pump is complete, check
the impeller to suction wear plate clearance and
adjust if necessary, (see section on Axial
Adjustment of Bearing Housing).
Staggered Impeller Gasket Installation
Mounting Impeller for Open Hub Casings

The impeller should be lifted in a secure way so that it cannot shift. Chains should not be hooked on the vane tips or
shrouds because they could cause the tips of the impeller to chip. The impeller must also be secured so as not to allow
it to turn.

Turn the shaft to thread the impeller.
Impeller Mounting for Closed Hub Casings

Before installing the impeller, run the bearing housing completely forward.

Install lifting jig into impeller. The impeller must hang level.

Turn the shaft to thread the impeller.
10.3.5 Mounting the Suction Plate / Liner
Refer to pump assembly drawing for details of your specific application. Suction plate/liner assembly instructions are for general
assembly procedure. Read entire instructions before beginning assembly.

Lay liner 13-19 on a flat level surface. Use shims to level if necessary.

Apply Loctite thread locker to the stud threads that will be installed into liner.

Install the studs (902.02) into liner. Apply light oil or anti-seize to exposed end of stud.
1 Anti-Sieze
2 Loctite
16-1
400.02
550.02
50-7.02
543.02
902.02
920.03/.05
901.04
50-7.04
543.04
920.04
902.02
2
1