Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! Retain instructions for future reference. Self-Priming Engine-Driven Centrifugal Pumps Description These centrifugal pumps include a precision mechanical seal with stainless steel spring, EPDM seals, carbon face and ceramic seat, and a built-in check valve for better self-priming capabilities (up to 20 ft. suction lift). Clog resistant impel

Do not run pump dry, as permanent damage to the mechanical seal will result. 4. Start the engine, following instructions in the engine manual. 5. With a suction lift of 5 to 10 feet, the pump should discharge liquid within 4 Operating Instructions and Parts Manual Models 020598 and 020599 Operation (continued) one or two minutes. A suction lift of 20 feet can take 5 minutes running time to pick up a prime. If pumping does not start within this time, shut off the engine, let unit cool down about

This unit is equipped with a dual volute pump casing. One of the volutes runs 180°, all the way from side opposite discharge into discharge through a completely enclosed passageway. If foreign material clogs this area, it can be dislodged by using a wire or long spring. REMOVAL OF OLD SEAL Refer to Figure 1 IMPORTANT: Always replace both seal seat (Ref. No. 10) and seal head (Ref. No. 11) to insure proper mating of components! Also, impeller seal washer (Ref. No. 14) should be replaced anytime i

For Repair Parts, contact dealer where pump was purchased. Please provide following information: -Model number -Serial number (if any) -Part description and number as shown in parts list Repair Parts List Figure 1 – Repair Parts Illustration Reference Number Description Part Number Quantity 1 Motor: Model 2874-95 – 3 HP, 3 Phase 1626-043-00 1 Model 2875-95 – 5 HP, 3 Phase 1626-044-00 1 Model 2876-95 – 7.5 HP, 3 Phase 1626-045-00 1 Model 2877-95 – 3 HP, 1 Phase 1626-082-00 1 Model 2878-95 – 5 HP,

5. Wet the inside of rubber portion of new seal head with a light coating of soapy water. Slide head onto shaft sleeve. Slide shaft sleeve with seal head onto motor shaft. Seal head and seal seat will meet. Reinstall any shims which have been removed. (See SHIM ADJUSTMENT section.) 6. Replace impeller key and impeller. Replace impeller seal washer before screwing impeller lock bolt in place. 7. Reassemble pump. 8. A short "run-in" period may be necessary to provide completely leak free seal oper

Read this manual and the General Operating Instructions carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. The Safety Instructions are contained in the General Operating Instructions. Failure to comply with the safety instructions accompanying this product could result in personal injury and/or property damage! Retain instructions for future reference. AMT reserves the right to discontinue

REMOVAL OF OLD SEAL Refer to Figure 1 IMPORTANT: Always replace both seal seat (Ref. No. 10) and seal head (Ref. No. 11) to insure proper mating of components! Also, impeller seal washer (Ref. No. 14) should be replaced anytime impeller lock bolt (Ref. No. 15) has been removed. 1. Remove four bolts (Ref. No. 4) that connect adapter (Ref. No. 7) to casing (Ref. No. 16). 2. Remove casing and casing seal (Ref. No. 8). Care should be taken not to "pinch" or "shave" the o-ring gasket (Ref. No. 8) bet

Piping • Discharge piping should be no smaller than 2" (51 mm) diameter and kept as short as possible, avoiding unnecessary fittings to minimize friction losses. • Install an adequately sized check valve (suitable for handling 3.4" (19 mm) solids for effluent applications and 2" (50 mm) solids for sewage applications) in the discharge pipe to prevent backflow. Follow the check valve manufacturer’s installation instructions. • Install an adequately sized gate valve ABOVE the check valve for pump,

1 Gallon Required) Turbine Oil 1 4K432 7.5 lbs./gal. 304 Impeller Locknut (3 PH only) AISI 300 series SS 1 13K6 – 338 Motor – 1 Phase, 115V Stainless Steel 1 118-121R 118-123R N/A N/A N/A N/A N/A 13.0 to 24.0 118-122R 118-124R 118-1212R 118-1213R 118-1233R 120-844R 120-845RMotor – 1 Phase, 230V Motor – 3 Phase, 230/460 V N/A 118-132R 118-1304R 118-134R 118-1323R N/A N/A Motor – 3 Phase, 200 V N/A 118-1314R 118-1316R 118-1316R 118-1335R N/A N/A Motor – 3 Phase, 200-230/460 V N/A N/A N/A N/A N/A 1

WARNING Hazardous voltage SYMPTOM PROBABLE CAUSE RECOMMENDED ACTION MOTOR NOT RUNNING Motor thermal protector tripped. Allow motor to cool. Insure minimum pump submergence. Clear debris from casing and impeller. NOTE: If circuit breaker “OPENS” Open circuit breaker or blown fuse. Determine cause, call a qualified electrician. repeatedly, DO NOT reset. Call qualified electrician. Pump impeller binding or jammed. Check motor amp draw. If two or more times higher than listed in the “DESCRIPTION AND