MAINTENANCE
Draining the Pump
6
MAINTENANCE
NOTE:
For replacement parts, consult the catalog available on
www.FranklinWater.com.
• Check the pump periodically for loose or rubbing parts.
• Service immediately if any unusual noise, leaks, or vibrations develop.
• Drain the pump should it be subjected to freezing temperatures.
Draining the Pump
Drain all piping and water tanks exposed to freezing conditions.
1. Remove the pipe plug from bottom of pump case.
2. Allow the water to drain.
3. Install the pipe plug to the pump case.
Disassembly
1. Shut down system and lock out power.
2. Allow pump components to adequately cool.
3. Drain the pump. Refer to
.
Pump Shaft Disassembly
1. Unbolt and remove the casing, laying aside the case gasket.
2. Take the diffuser and square ring off the volute.
3. Remove impeller and shaft key:
IMPORTANT:
Beware of breaking the back side of the impeller.
• Remove the impeller bolt and washer.
• Pry the impeller from the shaft. For corroded assemblies, flip the pump vertically and apply a
penetrating oil to the impeller.
• Remove the shaft key.
4. Spray the shaft sleeve with WD-40 and remove the rotating portion of the mechanical seal.
5. Unbolt the motor adapter from the motor and remove.
IMPORTANT:
Be sure not to damage the stationary part of the mechanical seal.
6. Gently tap the stationary part of the mechanical seal from the motor adapter using a flat-blade
screwdriver and rubber mallet.
7. If necessary, remove the shaft sleeve and slinger.
• Clean the shaft sleeve with 000 steel wool and WD-40.
8. Inspect disassembled components. Replace the worn parts with new during reassembly.
Risk of severe injury or death by electrical shock.
• To reduce risk of electrical shock, disconnect power before working on or around the system.
