Goulds Pumps 3640 - IOM - Manual (Page 34)

Commissioning, Startup, Operation, and Shutdown
fluid from pump inlet to discharge drain (optionally, the casing vent can be included in
warm-up circuit but not required). Soak for (2) hours at process fluid temperature.
At initial startup, do not adjust the variable-speed drivers or check for speed governor or over-
speed trip settings while the variable-speed driver is coupled to the pump. If the settings have
not been verified, then uncouple the unit and refer to instructions supplied by the driver
manufacturer.
Remove the coupling guard
1. Remove the bolt from the slotted hole in the center of the coupling guard.
2. Slide the driver half of the coupling guard toward the pump.
3. Remove the bolt from the driver half of the coupling guard.
4. Remove the driver-side end plate.
5. Remove the driver half of the coupling guard:
a) Slightly spread the bottom apart.
b) Lift upwards.
6. Remove the remaining nut, bolt, and washers from the pump half of the coupling guard.
7. Remove the pump half of the coupling guard:
a) Slightly spread the bottom apart.
b) Lift upwards.
Check the rotation - Frame Mounted
WARNING:
• Operating the pump in reverse rotation can result in the contact of metal parts, heat generation, and
breach of containment.
• Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical
injury.
1. Lock out power to the driver.
2. Make sure that the coupling hubs are fastened securely to the shafts.
3. Make sure that the coupling spacer is removed.
The pump ships with the coupling spacer removed.
4. Unlock power to the driver.
5. Make sure that everyone is clear, and then jog the driver long enough to determine that the
direction of rotation corresponds to the arrow on the bearing housing or close-coupled
frame.
6. Lock out power to the driver.
Couple the pump and driver
WARNING:
• Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical
injury.
• The coupling used in an Ex-classified environment must be properly certified and must be
constructed from a non-sparking material.
1. Check the gap between the coupling hubs against the dimensions shown on the elevation
drawing or as stamped on the coupling hub. For any necessary adjustment, move the
driver not the pump.
Motors with sleeve bearings may be manufactured with 1/4 or 1/2 in. (6.35 or 12.7 mm) end
movement (float) in the motor rotor. For limited end-float arrangement, the gap between the
32 Model 3640 Installation, Operation, and Maintenance Manual