Bell & Gossett P81568D Series 1535 - Manual (Page 21)

1. Gauge tapping plug 12. Shaft
2. Volute gasket 13. Impeller locknut
3. Volute cover capscrews 14. Ceramic seat
4. Slinger 15. Volute
5. Gauge tapping plug 16. Seal housing
6. Bellows 17. Rotating ring
7. Seal assembly 18. Seat gasket
8. Spring 19. Impeller, enclosed
9. Shaft sleeve 20. Bracket
10. Impeller key 21. Volute drain plug
11. Impeller lockwasher —
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.
Areas to inspect
Inspect the pump regularly for leaking seals, worn gaskets, and loose or damaged
components. Replace or repair these parts as required.
Reassembly
Reassemble the seal assembly
WARNING:
After you disassemble a gasket joint, always use a new gasket upon reassembly. Never
reuse old gaskets. Failure to follow these instructions can result in serious personal injury,
death, and/or property damage.
1. Place a new retainer in the bracket seal recess.
2. Seat a thin rubber gasket in the recess and set the ceramic insert on top of the gasket.
The ceramic has a top side and bottom side. The bottom is identifiable by its slightly
recessed grooves. These grooves should face downward toward the rubber gasket.
3. Lubricate the rubber seal collar with soapy water.
Maintenance
20 Series 1535 Installation, Operation, and Maintenance Manual