Bell & Gossett P81673 REV I Series 1510 - Manual (Page 32)

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 flushing tube if it is used.
6. Remove the volute capscrews.
7. Remove the bearing frame and impeller assembly from the volute.
Remove the impeller
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 1510-8G, remove the impeller capscrew.
2. Remove these parts:
• For all models except the 1510-8G, remove the lock washer and the washer.
• For the 1510-8G, remove the impeller nut and the washer.
3. Remove the impeller.
4. Remove the impeller key.
Remove the mechanical seal (1510 and 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 (1510-S, 1510-D, 1510-PF, and 1510-8G)
1. Remove the hex nuts from the seal cap bolts.
2. For the 1510-8G, remove the spacer sleeve and the hex nuts that hold the packing
gland to the stuffing box.
3. Remove the coverplate screws.
4. Remove the coverplate from the bracket.
5. 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.
NOTICE:
Protect machined surfaces while you clean the parts. Failure to do so may result in
equipment damage.
Maintenance
30 Series 1510 Installation, Operation, and Maintenance Manual