caprari K+ Serie Manual De Uso Y Mantenimiento página 31

23. INSPECTION OF PARTS SUBJECT TO WEAR
The life and performances of the pump parts vary with wear and corrosion according to the different conditions of use.
If the electric pump is examined for wear, comply with the following instructions also consulting the typical section diagram for the references within
brackets.
If the parts are partially or totally clogged by the solid material carried along by the conveyed fluid, thoroughly clean them with a jet of pressurized
water. To clean the hollow space between the impeller and the oil chamber shield, direct the pressurized jet from the pump casing delivery. This area
can only be perfectly cleaned after the impeller has been removed.
1. - Set the electric pump in a vertical position, checking that it stands firm.
2. - Loosen the screws (Pos. L14) that tighten the pump body, lift the motor unit plus impeller and then position it horizontally.
3. - Check the play between the wear ring (Pos. L4.) and the impeller collar (Pos. L2.). If the play exceeds 3 mm (difference between the inner ring
diameter and the impeller clearance diameter) replace the ring and/or the impeller or reset the impeller clearance diameter by applying a steel
ring with a thickness of at least 5 mm, subsequently machined in order to obtain a minimum 0.5 mm play (see fig.1).
4. - Contact your nearest CAPRARI after-sales center if there is excessive wear on the impeller or pump casing. Always insist on genuine spare
parts. Use a wrench for M14 socket head screws to remove the impeller.
5. - Thoroughly clean the rubber parts, nuts and bolts before reassembling the individual components.
6. - Check that all parts are in a good condition. Replace any parts as may have been damaged during the disassembling operations or as have
deteriorated through wear.
7. - Check that the oil does not contain water. Change the seal on the pump side if this is the case.
Impeller clearance diameter
Caprari S.p.A.
K.M150N.. / K.M100N.. / K.W100N.. / K.D200N.. / K.M200P.. / K.D250P..
Fig. 1
Inner ring diameter
1,5 mm
(m x.diametral play =3 mm) á
0,25 mm
(min.diametral play =0,5 mm)
GB
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