Fitting; Repair And Warranty - EBARA GS Manual De Instrucciones Y Mantenimento

4. Release the impeller nuts (048) and washer (137) and remove the impeller (021). If
EN
there is any rust or deposits on the impeller which might cause some resistance,
clean and remove it gently.
5. Remove the key (039-1) of the shaft (031), after the seal, the seal housing body and
the splash guard washer (093).
6. In a pump with a mechanical seal: the fixed portion of the seal is inserted in the seal
housing disk (011) and can be removed by pushing it gently from the back using a
screwdriver or similar instrument.
In pumps with soft shaft seal: remove the gland nuts, remove the gland flange (091)
and remove the gasket rings (119) and locking ring (085) of the seal housing disk
(some pump models do not have a locking ring).
7. Remove the cap of the bearing mount support (053) from the bearing mount support
(051) and remove the shaft, striking it with a hammer from the opposite side until
the bearing has been removed from its position. Remove the second bearing by
hammering it from the opposite side. Inspect the condition of the bearings (056) and
replace them if they do not rotate smoothly and noiselessly. There must not be any
leakage of grease or lubricant during this operation.

10.2 FITTING

The pump must be fitted by following the procedure for dismantling in the reverse order,
paying attention to the following points:
1. In pumps with a mechanical seal: Wipe the surfaces of the mechanical seal with
alcohol and a dry, delicate cloth.
When packaging: replace the rings with new rings, positioning them so that the cuts
remain rotated from 90° to 120° between the rings.
2. Replace the gaskets on the pump body with new ones.
3. Change any worn or damaged parts.
4. Tighten the screws gradually and symmetrically with the following torque using a
torque wrench: M6: 4.5 Nm, M8: 11 Nm, M10: 22 Nm, M12: 38 Nm, M16: 93 Nm,
M20: 181 Nm, M24: 313 Nm.
5. Fit the motor and align it with the pump, in accordance with the procedure indicated
in the section on Alignment.

11. REPAIR AND WARRANTY

Order any repairs for the equipment directly from our company or from our approved
technical support services. EBARA warrants free repairs according to the conditions
listed below:
1. The equipment warranty period is 2 years from the date of purchase.
2. During the warranty period, any faults or damage due to defects in design or assem-
bly by our company will be repaired free of charge, even if it has been used correctly.
26
Instruction and Maintenance Manual