Install The Impeller; Reinstall The Pump Assembly - Goulds Marlow e-580 Series Instruction Manual

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.

6.4.3 Install the impeller

1. Install the impeller, impeller washer, lockwasher, and capscrew.
2. Tighten the capscrew according to the Capscrew torque values table.

6.4.4 Reinstall the pump assembly

1. Install a new volute gasket.
2. Install the pump assembly into the volute.
3. Tighten the volute capscrews according to the Capscrew torque table.
4. Install a seal flushing tube.
5. Install the drain plug.
6. Open the isolation valves and inspect the pump for leaks.
7. Return the pump to service if it is not leaking.
Marlow Series e-580 INSTRUCTION MANUAL
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)
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1. O-ring
2. Coverplate
3. For 1-1/4 in. seal: 1-13/32 in. (3.571 cm)
4. For 1-5/8 in. seal: 1-1/4 in. (3.175 cm)
5. Seal locking collar
6. Seal cap bolt
7. Seal cap
8. O-ring
9. Motor end
Figure 12: Single mechanical seal (e-580-S)
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6 Maintenance
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