IMPELLER / WEAR RING
SHIMMING INSTRUCTIONS

AT, TJ, SD-309, DOMINATOR, BERKELEY, ENERGIZER KITS

 

Tools Needed:

1. .030 Feeler Gauge 5. Impeller Wrench
2. Propane Torch 6. 3/4 Wrench
3. Bent Screw driver 7. 9/16 Wrench
4. WD-40 8. Dead Blow Hammer

 

 

To remove old wear ring:

Use a propane torch. Place the flame on the brass ring go around in a circular motion until the insulator starts to melt. Grab the ring with a bent over screwdriver (90deg.) and pull out. Clean up wear ring bore.

Installation:

Place wear ring in freezer for four hours. Place insulator in suction bore. Spray with WD-40. Start wear ring by hand. Tap wear ring in using a wooden block and a mallet. You may use an old impeller but it may bottom out on the shaft before seating the ring.

Important:

Wear ring must be seated square in the bore with-in 0.004” side to side.

The axial clearance between the impeller and the impeller shoulder must be 0.025”-0.035” (check several places around the wear ring). Check again after the impeller nut has been tightened.

Use red loctite on aluminum nut. Use Zinc anti-seize on steel lock nut. Torque impeller nut to 150 ft/lbs. Torque bowl bolts to 50 ft/lbs.