Bell & Gossett P2001406C Series e-1510 Centrifugal Pumps - Manual (Page 29)

WARNING:
Make certain that the internal pressure of the pump is relieved before
you continue. Failure to follow these instructions could result in serious
personal injury or death, or property damage.
5. Remove the seal flush piping if it is used.
6. Remove the volute capscrews.
7. Remove the bearing frame and impeller assembly from the volute.
Remove the impeller
The following warning applies to all models except e-1510-es:
WARNING:
Never apply heat to remove an impeller. The use of heat may cause an explosion due to
trapped liquid, resulting in severe physical injury and property damage.
CAUTION:
Wear heavy work gloves when you handle impellers. The sharp edges can cause physical
injury.
1. For all models except the e-1510-es, remove the impeller capscrew.
2. Remove these parts:
• For all models except the e-1510-es, remove the lock washer and the washer.
• For the e-1510-es, remove the impeller nut, turning counter-clockwise.
3. Remove the impeller.
• For all models except e-1510-es, slide impeller off shaft.
• For e-1510-es, remove by turning counter-clockwise. Hold the shaft at the
coupling end and use a strap wrench on the impeller. If the impeller nut or
threaded impeller cannot be removed by turning, heat only as necessary with a
torch and disassemble while hot. Wear heat resistant gloves.
4. Remove the impeller key for all models except e-1510-es.
Remove the mechanical seal (e-1510 and e-1510-F)
1. Remove the rotating portion of the seal.
If necessary, use a screwdriver to loosen the rubber ring.
2. Remove the seal insert, the insert gasket, and the retainer if it is used.
Remove the seal or packing rings (e-1510-S and e-1510-PF)
1. Remove the hex nuts from the seal cap bolts.
2. Remove the coverplate screws.
3. Remove the coverplate from the bracket.
4. Remove the seal assembly or packing rings.
Pre-assembly inspections
Guidelines
Before you assemble the pump parts, make sure you follow these guidelines:
• Inspect the pump parts according to the information in these pre-assembly topics
before you reassemble your pump. Replace any part that does not meet the required
criteria.
• Make sure that the parts are clean. Clean the pump parts in solvent in order to remove
oil, grease, and dirt.
Maintenance
Series e-1510 Installation, Operation, and Maintenance Manual 27