Service And Repair
Replacing the Conduit Bushing
36
Replacing the Conduit Bushing
Disconnect, lock out, and tag power at the panel before servicing the
pump.
When servicing equipment, use non-sparking tools and use caution when removing or in-
stalling equipment to avoid generating a spark.
Parts Required:
• Conduit Bushing (P/N 410486-001)
• Hardware/Seal Kit, P/N 410154-001
Procedure:
1.
Remove the contractor’s box cover (Figure 14). Remove and discard the O-ring from the cover. Set aside the
cover.
2.
Locate the conduit bushing at the base of the contractor’s box (see Figure 14 on page 20). Note that the
incoming power wires connect to the pump wiring. Make a note of which incoming wire connects to which
pump wire then cut the incoming power wires from the pump wires and discard the connectors.
3.
Loosen the two screws in the conduit bushing just enough so the bushing can be lifted from its socket in the
bottom of the manifold’s contractor box. Continue lifting the bushing up, until it is free of the power wires.
Notice that the top plate of the bushing assembly (facing into the manifold) has a larger diameter than the
bottom plate, and that there are plastic rod inserts in the unused holes. The plastic inserts seal the bushing
and must be in any unused hole.
4.
Orient the replacement bushing so the screws are facing up, and push each of the incoming power wires
through an empty hole in the bushing. Leave the plastic rod inserts in any unused holes.
5.
Slide the bushing down over the power wires until it seats in its socket in the base of the manifold’s contractor
box leaving sufficient wire length for connecting the pump wires and then tighten the two screws in the top
plate of the bushing assembly to compress the bushing and seal the wiring entry.
6.
Strip insulation off all eight wires 5/16 of an inch (8mm).
7.
Reconnect the power wires to the pump wires as recorded in Step 2 above.
8.
Get a 2.090’’ ID x 0.118’’ wide O-ring from the Hardware/Seal Kit. Lubricate the O-ring with petroleum jelly
and slide it over the cover’s threads up to the flange. Reinstall the cover. Do not use thread sealant. Torque the
cover to 35 ft-lbs (50 N•m).
OFF
WARNING