FPS VR Serie El Manual Del Propietario página 8

MAINTENANCE
Disassembly
Disassembly
1. Unscrew the coupling guard screws and remove the coupling guards.
2. Loosen the set screws of the cartridge seal a quarter-turn.
3. Unscrew and remove the coupling attachment hardware.
• For NEMA 56 - NEMA 213/215, set aside the extractable half of the coupling.
• For NEMA 254/256 - NEMA 364 - 365, set aside the two halves of the coupling.
4. Remove the pin from the pump shaft.
NOTE: To remove the cartridge seal without removing the motor, omits steps 6-8.
5. Unscrew and remove the motor attachment screws.
6. Remove the motor.
7. Loosen any motor flange screws and remove the thrust bearing.
NOTE: NEMA 56 builds do not have motor flange screws.
8. Unscrew and remove the cartridge seal.
Reassembly
NOTE: Refer to "Torque Specifications" on page
Cartridge Seal & Thrust Bearing Reassembly
NOTE: If a cartridge seal for NEMA 254-365 motors was replaced without disassembling the motor, omit
steps 4-6.
1. Lubricate the shaft and threads with cleaning alcohol.
• Wipe away any residues.
2. Insert new cartridge seal and tighten to the appropriate torque.
3. Tighten the set screws of the cartridge seal.
4. Apply white-knight anti-seize to the face of the thrust bearing flange.
5. Align the flange with the threaded holes of the coupling housing.
6. Tighten any motor flange screws.
NOTE: NEMA 56 assemblies do not have motor flange screws.
Motor and Coupling Reassembly
NEMA 56 - NEMA 213/215
1. Grease the entire motor shaft's surface.
2. Position the motor on the pump thrust bearing assembly.
3. Install the motor attachment screws.
4. Insert the coupling pin into the extractable half of the coupling.
5. Install the pin and extractable piece of the coupling.
6. Tighten the coupling hardware to the appropriate torque, keeping the two coupling halves symmetri-
cal.
7. Ensure the impeller spins freely, spinning it by hand and listening for interference.
8. Assemble the coupling cover guards.
NEMA 254/256 - NEMA 364/365
NOTE: If a cartridge seal for NEMA 254-365 motors was replaced without disassembling the motor, omit
steps 1-3.
1. Grease the entire motor shaft's surface.
2. Position the motor on the pump thrust bearing assembly.
3. Install the motor attachment screws.
8
3.