Assembly; Tubular Coupling Guards; Coupling; Mechanical Seal - KSB AU Manuel D'instructions

- Unthread the impeller nut or the impeller itself, and
extract it. Mechanical seal is accessible at this moment.
- Extract the mechanical seal (see point 7.4.4)
- Release and extract the casing cover.
- Release the rigid coupling (coupling fastener) and
remove the pump shaft (except for version with gasoline
engine, in this case there is one singe shaft, motor's
one).
For construction with flexible coupling:
- Remove the coupling guard and then the coupling as
described in point 7.4.2
- Extract the support - cover, including the moving parts.
The wear plate is accessible at this moment (when fitted).
- Release the impeller nut and extract it.
- Extract the mechanical seal (see point 7.4.4)
- Release and extract the casing cover.
- Remove the shaft thrower (when fitted) and release the
support covers.
- Extract the shaft with the bearings, by hitting the pump
end with a plastic hammer.
Failure of the bearings may cause ignition through increased
heat on the surface of the bearings. This can be avoided by
using officially approved quality bearings, which are supplied
as original spare parts.
Regularly check the correct state of the thrower, and
replace in the event of deterioration.
7.5

Assembly

7.5.1

Tubular coupling guards

1. Install the distancer cylinder and seal using the
clamps (1)
2. Position the side cover (2) leaving the rims (3) in the
upper section
3. Join the side cover (2) with the fastening screws (4)
to the lifting plate (5). The screws should not be fully
tightened at this moment. If there is no lifting plate,
mount the assembly plate and place the screws
through the threaded orifices.
5
4
14
and point 7.4.3 (when fitted).
1
3
2
4. Without tightening the screws (4) completely, turn the
equipment around the shaft.
5. Adjust the length of the covers so the shaft and the
attachment are fully covered.
6. Secure the lifting plate (5) to its support (6) using the
corresponding screws (7). If there is no lifting plate,
the locking screws (4) are longer and also fulfil this
function.
6
7. Finish tightening the locking screws (4).
7.5.2

Coupling

1.- Mount the pump (when it has been dismounted) and
tighten the casing - cover attachment nuts.
2.- Couple the pump to the motor, as indicated:
2.1.- COUPLING WITHOUT DISTANCER. Position the
motor in place, introducing the male coupling. Position the
pins, but DO NOT tighten them until alignment is complete.
2.2.- COUPLING WITH DISTANCER. Mount the male
coupling, introducing the teeth in the rubber plugs located
in the female coupling. Mount the intermediate pipe and
secure it using the screws, both to the plate and to the
male coupling.
3.- Align the coupling (see point
4.- Mount the coupling guard.
7.5.3

Mechanical seal

- Mount the fixed part of the mechanical seal.
- Mount the rotating part of the seal on the shaft sleeve,
taking care not to damage the o-ring. Attach it to the shaft
sleeve (where appropriate) with separation bushing, and
introduce it in the shaft, through to the stopper.
AU
4
5
7
5.2 of this manual)