1235 Hickory Street | Pewaukee, WI 53072
For Customer Support: 800-558-7008
REPLACING THE DRIVE COUPLER
The motor drive coupler is designed to break if foreign material is accidently ingested into the
drum pump foot, preventing damage to the impeller, shaft and motor. If the drive coupler
breaks, follow this procedure to remove and install a new motor drive coupler.
1.
Remove the drum pump from the drum and place it onto a table large enough to
support the unit
Note:
Handling the unit may be easier if the hose is removed at the elbow connection.
2.
Remove the pump foot to expose the impeller and shaft by placing the shaft of a long
screwdriver between the tangs on the foot bottom and turning the foot clockwise to
remove it from the pump tube. (Note: Foot threads are left-handed threads)
3.
Place vise grips on the drive shaft above the impeller to hold the shaft while removing
the motor drive coupler.
4.
Use a plyers on the motor coupler and turn clockwise to remove from drive shaft.
5.
Thread the new coupler (P/N 10412) onto the shaft and hand tighten.
6.
Remove the vise grips and thread the foot back onto the pump tube turning
counterclockwise to tighten.
7.
Place a screwdriver into the discharge hole on the side of the outer tube and tighten the
foot using the shaft of a long screwdriver placed between the tangs on the foot bottom.
Figure 3: Pump Foot Removal
Figure 4: Motor Drive Coupler Removal
Pump Foot
Discharge hole
Outer Tube
Drive Coupler
Drive Shaft
Vise Grips
Impeller
