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9. Remove the four (4) 1/2-12NC bolts that hold the motor adapter to the motor and remove the motor adapter. 10. Loosen the two set screws that hold the shaft coupler to the motor shaft, and remove the shaft coupler. The motor may now be serviced by a qualified vendor or replaced (Figure 4.6, Removal of Mechanical Seal Holder from Motor Adapter). 17 5.3 Motor Installation: XB and XC Motor Adapter Pumps STEPS 1. On a used motor, file the motor shaft smooth where the set screws were seated. 2. Coat the motor shaft with an anti-seize compound. 3. Slide the shaft coupler onto the motor shaft until fully seated, and tighten the two set screws. 4. Place the motor adapter onto the motor, such that the one drain hole is located down and the four side access ports are horizontal when the pump is reinstalled. 5. Coat the round end of the pump shaft and shaft key with an anti-seize compound. 6. Place the pump liquid-end assembly with pump shaft and shaft key into the motor adapter, with the key aligned with the coupler key way. 7. Install the four (4) 5/16-18NC bolts and tighten. 8. Using a wood dowel, place it against the pump shaft end located in the discharge port. Tap on the end of the wood dowel until the pump shaft is fully seated in the shaft coupler, and then tighten the cone-point set screw (Figure 4.6, Removal of Mechanical Seal Holder from Motor Adapter). 9. Reinstall the pump and pump piping connections. 10. Reinstall the motor wiring. 11. For pump start-up see Section 3.0 (Pump Installation). 5.4 Motor Removal: X Motor Adapter Pumps STEPS 1. Disconnect the motor electrical power. 2. Remove the wiring to the motor. 3. Remove the piping from the pump. 4. Remove the pump mounting bolts, and place the pump on a work bench. 5. Remove the four (4) 5/16-18NC bolts that hold the pump liquid end to the motor adapter. 18 6. Slide the liquid end assembly off of the pump shaft, taking care not to bend the pump shaft. 7. Remove the retaining ring and remove. The rotary head of the mechanical seal. 8. Remove the seal holder along with the stationary seal seat. 9. Remove the four (4) 3/8-16NC bolts that hold the motor adapter to the motor, and remove the motor adapter. 10. Remove the pump shaft assembly where it is screwed to the threaded motor shaft by first heating the joint area to loosen the thread-locking compound. Secure the motor shaft using a vise grip, and loosen the pump shaft assembly. An impeller may be used to grip the shaft, taking proper care not to damage the impeller. Or, use a vise grip and fabric rug to grip the splined shaft, taking care not to damage the splines. 11. The motor can now be serviced by a qualified service center, or replaced. 5.5 Motor Installation: X Motor Adapter Pumps STEPS 1. To re-use a repaired motor, clean the threads on the shaft of any thread- sealant residue. 2. Reinstall the pump shaft onto the threaded motor shaft until fully seated. Rotate the pump shaft to make sure it runs true. Run-out should be less than 0.03 inch (0.76 mm) for every 10 inches of pump shaft length. 3. Loosen the pump shaft from the motor shaft, apply thread sealant to the threads, and tighten the shaft again until fully seated. Use standard strength thread sealant on single-phase motors, and a high-strength thread sealant on three-phase motors. 4. Install the motor adapter onto the motor and install and tighten the four bolts into the motor. 5. Position the seal holder into the motor adapter, using Vaseline or grease on the O-ring as a lubricant. Replace the O-ring if damaged. 6. Install a new mechanical seal stationary seat, using Vaseline, grease, or water as a lubricant on the rubber portion. 7. Install the rotary portion of the mechanical seal using a small amount of Vaseline lubricant on the round body of the shaft, and also on the face of the ceramic seat face where the carbon wear ring contacts it. 19 8. Install the retaining ring into the shaft groove with the sharp edges away from the motor. 9. Install the liquid end assembly onto the pump shaft. Do not force it in. Rotate and place the liquid end onto the mechanical seal holder until seated against motor adapter. 10. Install the four (4) 5/16-inch lock washers and bolts to hold the liquid end onto the motor adapter and tighten. 11. Reinstall the pump (Section 3.0, Pump Installation). 20 6.0 LIQUID END - TONKAFLO SERVICE POLICY Sections 4.0 (General Troubleshooting for All Pumps) and 5.0 (Tonkaflo Pump Field Maintenance) in the Tonkaflo Installation, Operation, and Maintenance Manual were written to assist our customers in performing minor maintenance in the field of Tonkaflo pumps. Proper maintenance will ensure longer pump life and minimize downtime. Tonkaflo pumps are manufactured to make field repairs on the mechanical seal a quick and easy process. If a repair at the factory is desired, call the factory for a Return Goods Authorization (RGA) number (Section 7.0) and follow the directions provided by a GE representative. For motor problems...

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