Pentair SuperMax High Performance Pumps SuperMax Installation Guide - English - Page 9

5 SERVICING Always disconnect power to the pump at the circuit breaker and disconnect the communication cable before servicing the pump. Failure to do so could result in death or serious injury to service people, users or others due to electric shock. Read all servicing instructions before working on the pump. DO NOT open the strainer pot if pump fails to prime or if pump has been operating without water in the strainer pot. Pumps operated in these circumstances may experience a build up of vapor pressure and may contain scalding hot water. Opening the pump may cause serious personal injury. In order to avoid the possibility of personal injury, make sure the suction and discharge valves are open and strainer pot temperature is cool to touch, then open with extreme caution. Be sure not to scratch or mar the polished shaft seal faces; seal will leak if faces are damaged. The polished and lapped faces of the seal could be damaged if not handled with care. Motor Care Protect from heat 1. Shade the motor from the sun. 2. Any enclosure must be well ventilated to prevent overheating. 3. Provide ample cross ventilation. Protect against dirt 1. Protect from any foreign matter. 2. Do not store (or spill) chemicals on or near the motor. 3. Avoid sweeping or stirring up dust near the motor while it is operating. 4. If a motor has been damaged by dirt it voids the motor warranty. 5. Clean the lid and clamp, O-ring, and sealing surface of the pump pot. Protect against moisture 1. Protect from splashing or sprayed water. 2. Protect from extreme weather. 3. If motor internals have become wet - let them dry before operating. Do not allow the pump to operate if it has been flooded. 4. If a motor has been damaged by water it voids the motor warranty. Note: When replacing the motor, be certain that the motor support is correctly positioned to support the size of motor being installed. Shaft Seal Replacement The Shaft Seal consists primarily of two parts, a rotating member and a ceramic seal. The pump requires little or no service other than reasonable care, however, a Shaft Seal may occasionally become damaged and must be replaced. Note: The polished and lapped faces of the seal could be damaged if not handled with care. Pump Disassembly Tools required: • 1/4" socket or open-end wrench • 9/16" open-end wrench • 1/4" hex-key wrench • Phillips screwdriver To disassemble the pump: 1. Disconnect all power to the pump at the circuit breaker. 2. Open the filter's air relief valve and relieve all system pressure. 3. Drain the pump by removing the two drain plugs. 4. Remove the four bolts securing the motor/ hydraulics sub-assembly to the strainer pot. 5. GENTLY separate the motor/hydraulics subassembly from the strainer pot. 6. Remove the three screws securing the diffuser to the seal plate. Note: Diffuser screw may vary depending on the pump manufacturing date. 7. Using a 1/4" hex-key wrench, hold the motor shaft in place at the rear of the motor. This prevents the motor shaft from spinning while removing the impeller and impeller screw. 8. Remove the impeller screw and washer using a Phillips screwdriver. The screw is a left-handed thread and loosens clockwise. 9. Unscrew the impeller from the motor shaft counterclockwise. 10. If replacing the shaft seal, follow the instructions provided with the replacement seal. If not, continue to the next step. 11. Remove the spring half on the shaft seal from the motor shaft. 12. Remove the four bolts securing the seal plate to the motor using a 9/16" wrench. 13. When ready to reassemble, continue to Pump Reassembly on the next page. SUPERMAX® High Performance Pump Installation and User's Guide