Sta-Rite DynaGlas Pump FAILURE TO PUMP REDUCED CAPACITY OR DISCHARGE PRESSURE Suction leaks/lost prime: Pump must be primed; make sure that pump volute and trap are full of water. Make sure there are no leaks in suction piping. Make sure suction pipe inlet is well below the water level to prevent pump from sucking air. If suction trap gasket is defective, replace it. Make sure pump is not trying to lift water more than 10′(3m). Make sure suction pipe is at least 2" (51mm) in diameter. Clogged pipe/trap/impeller, worn impeller: Make sure suction trap is not clogged; if it is, clean trap and strainer. Make sure impeller is not clogged Impeller and diffuser may be worn. If so, order replacement parts from Repair Parts List 1 SQ1052 Motor 1/2 HP SQ1072 Motor 3/4 HP SQ1102 Motor 1 HP SQ1152 Motor 1 1/2 HP SQ1202 Motor 2 HP 2 U30-692SS Screw #10-32×1/2"   3 U17-568 Bonding Lug   4 C69-24 Slinger   5 C3-184P Seal Plate 6 U9-373 Seal Plate O-ring 7 37400-0027 PS-201 Shaft Seal 8 C105-236P Impeller 3/4 HP C105-236PB Impeller 1 HP C105-236PC Impeller 1 1/2 HP C105-236PDA Impeller 2 HP C105-236PEA Impeller 2 1/2 HP 9 C1-270PB
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1.5 HP- 2.5 HP Diffuser for Sta-Rite DynaGlas Pump C1-270P

Square Flange Threaded Shaft 2.0 HP Motor made by A.O.Smith SQ1202 HP 2 RPM 3450 Volts 230 Frame 48Y Phase 1 Encl Open D.P

Seal Plate for Sta-Rite DynaGlas Pump C3-184P

Diffuser O-ring for Sta-Rite DynaGlas Pump U9-374

Square Flange Threaded Shaft 0.75 HP Motor made by A.O.Smith SQ1072 HP 3/4 RPM 3450 Volts 115/230 Frame 48Y Phase 1 Encl Open D.P

Seal Plate O-ring for Sta-Rite DynaGlas Pump U9-373

Housing Sta-Rite DynaGlas Pump C76-58P

Half Union 2 in. Slip Sta-Rite Dyna Glas Pump made by Pentair PKG 188 STA-RITE Dyna Glas Pump Dyna Max Includes: U11-200PS Union Collar – Qty 2 O-Ring – Qty 2 U11-196PS 2" Slip adapter – Qty 2

Shaft Seal for Sta-Rite DynaGlas Pump 37400-0027 PS-201 INSTALLATION INSTRUCTIONS FOR REPLACEMENT SEALS Disassemble pump cavity to expose defective seal. Removal of old seal and installation of new seal requires careful operations and precautions. CAUTION: Lapped and polished faces of new seal are easily scratched and damaged. PROTECT FROM DAMAGE, DIRT and FINGER PRINTS. Carefully remove old seal head and seat taking care not to scratch shalt or seat counterbore. NOTE HOW OLD SEAL IS ASSEIVIBLED. BE SURE REPLACE MENT SEAL IS INSTALLED IN IDENTICAL MANNER. Clean shaft and counterbore surfaces using fine emery cloth or equivalent Remove rust, burrs, and wipe clean. Shaft, seat counterbore and rubber members of seal head and seat should be lubricated with a lubricant compatible with the seal elastomers. U.S SEALUBE is recommended and available from US Seal. U.S. SEALUBE is a WATER BASED formula specifically designed to lubricate rubber making the installation of mechanical seals fast and easy. It provides a high degree of lubricity to all rubber components. It maintains its wetness for a short period of time allowing for easy installation of a mechanical seal. NEVER use PTFE or SILICONE based lubricants. Check seal surfaces to be sure they are free
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