Bell & Gossett P81567F Series 1531 - Manual (Page 27)

1
2
3
4
5
1. Flushing tube
2. Coverplate capscrew
3. Packing gland
4. Bracket
5. Coverplate
Reinstall the bearing frame and impeller assembly
1. Install the impeller, impeller washer, lock washer, and capscrew, and then tighten per
the Capscrew torque values table.
2. Install a new volute gasket.
3. Install the bearing frame assembly into the volute.
4. Tighten the volute capscrews according to the Capscrew torque values table.
5. Install a seal flushing tube if it is used.
6. Install the support foot capscrews and tighten them according to the Capscrew torque
values table.
7. Install the drain plug and close the drain valve.
8. Open the isolation valves and inspect the pump for leaks.
Return the pump to service if you do not detect any leaks. See the Note on the packed
pump operation in the Commissioning, Startup, Operations, and Shutdown chapter.
Capscrew torque values
Capscrew torque in ft-lbs (Nm)
Capscrew
type
Head
marking
1/4 in. 5/16 in. 3/8 in. 7/16 in. 1/2 in. 5/8 in. 3/4 in. 7/8 in. 1 in.
SAE grade 2 6 (8) 13 (18) 25 (34) 38 (52) 60 (81) 120 (163) 190 (258) 210 (285) 300 (407)
Brass or
stainless
steel
or
4 (5) 10 (14) 17 (23) 27 (37) 42 (57) 83 (113) 130 (176) 200 (271) 300 (407)
Maintenance
Series 1531 Installation, Operation, and Maintenance Manual 25