Inspection Of Parts Subject To Wear - caprari K+ Serie Instrucciones De Servicio

K.M080.. / K.M100H.. / K.M150L.. / K.W080.. / K.W100L.. / K.T040H.. / K.D200N..+0075..
23. COOLING SYSTEM ACTIVATION
For K...N3 pumps, in case of operation on S1 in a dry chamber or in a tank with lower pumped fluid level, activate the integrated cooling system.
Use the 3/8" Gas cap identified with "COOLING OIL", located near the power cable connector, in order to top-up the cooling oil, making sure to
follow the quantities recommended below. The cooling oil must not be periodically replaced.
Electric pump type
GB
K_L_+ 006522_3
K_L_+ 009022_3
K_L_+012522_3
K_L_+007542_3
K_L_+004061_3
K_L_+016522_3
K_L_+010542_3
K_L_+012542_3
K_L/N_+007562_3
K_H_+..._3

24. 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 work is carried out on the electric pump to check for wear on the hydraulic part and/or the shredder when installed, remember to 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 pump in a vertical position and ensure that it is stable. Mark the various parts so that they can be remounted in the same positions.
2. - Unscrew the bolts (Pos. L.14) that fasten the pump casing. Lift the motor and impeller unit and then set it in a horizontal position.
3. - If the electric pump is the type with a single-channel impeller, 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 impeller or
restore the impeller clearance diameter by applying a steel ring at least 3 mm thick, subsequently machined in order to obtain a minimum 0.5
mm play (see fig. 1).
4. - If it is not excessive, wear between the impeller and intake support in series KT pumps can be recovered by adjusting the plugs (Pos. L10) of
the shield (Pos. L2) of the pump casing in order to obtain 0.2 to 0.5 mm float on the impeller blades making sure that the axial position of the
shredder blades is witn in ±0,5mm. Adjust by adding the relative flange seal (Pos.7) if necessary (see fig.2).
5. - If the punp casing or impeller are excessively worn, contact your nearest CAPRARI after-sales service center and askfor genuine spare parts.
Usse a socket screw wrench to remove the impeller. To demount the rotating part of the shredder, first remove the fillister socket screw then use
the two cavities for the puller at the base of the rotating part itself.
6. - The rubber parts, nuts and bolts must be thoroughly cleaned before the individual components are remounted and adjusted.
7. - Check that all rubber parts are in a good condition. Replace any that may have been damaged during the disassembly operations or as may
have deteriorated through wear.
8. - Check that the oil does not contain water. If this is the case, change the seal on the pump side.
9. - When reassembling the pump, proceed with the sequence of demounting phases in reverse, remembering to install all rubber seals in their
correct positions in compliance with the section diagram, checking the various parts with their relative original positions.
10. - Before tightening the impeller locking screw, apply a few drops of LOCTITE 242 on the screw thread (Pos. L13). Tighten screw M8 with a 25 Nm
(2.5 Kgm) torque and screw M10 with a 50 Nm (5 Kgm) torque.
Fig. 1
Inner ring diameter
Impeller clearance diameter
28
Oil type
Quantity in [kg]
TOTALERG
DACNIS SH 32
MACON OIL SP 9032
Fig. 2
1,5 mm
(Max. diametral play = 3 mm)
0,25 mm
(Min. diametral play = 0,5 mm)
Installation vertical
Quantity in [l]
2,53 3,03
2,53 3,03
2,53 3,03
2,53 3,03
2,53 3,03
2,78 3,33
2,78 3,33
2,78 3,33
3,30 3,95
Contact Caprari SpA
Installation horizontal
Quantity in [kg] Quantity in [l]
3,73 4,47
3,52 4,22
3,10 3,71
3,15 3,77
3,50 4,19
3,65 4,37
3,65 4,37
3,65 4,37
4,1 4,91
Caprari S.p.A.