Bell and Gossett 80, Instruction Manual

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1. Slinger
2. Bracket coverplate
3. Seal assembly
4. Impeller key
5. Volute capscrew
6. Impeller
7. Impeller lockwasher
8. Volute
9. Impeller capscrew
10.Volute gasket
11.Impeller washer
12.Shaft sleeve
13.Shaft
Figure 2: Standard mechanical seal
6.4.2 Assemble the single mechanical seal (80-S)
1. Lubricate the shaft sleeve and seal cap with soapy water.
Do not use a petroleum lubricant.
2. Insert a stationary seal with an O-ring into the seal cap and slide it onto the shaft.
3. Replace the seal cap gasket.
4. Slide the rotating portion of the seal assembly onto the shaft sleeve and lock it in
place.
ID seal size Distance between collar and impeller end of the shaft sleeve
1-1/4 in. (3.175 cm) 1-13/32 in. (3.571 cm)
1-5/8 in. (4.128 cm) 1-1/4 in. (3.175 cm)
5. Assemble the coverplate onto the bracket.
6. Tighten the capscrews according to the Capscrew torque table.
7. Attach the seal cap to the coverplate.
8. Tighten the hex nuts on the seal cap bolts according to the Capscrew torque table.
6 Maintenance
Series 80 INSTRUCTION MANUAL 21