PEERLESS TU Series Repair Instructions

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Brand: PEERLESS
Category: Water Pump
Model: TU Series (Repair Instructions)
File Type: PDF
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Pages: 12

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before attempting to install, operate or repair this pump. Properly installed, your Peerless pump will give you satisfactory, dependable service. We urge that you carefully read these step-by-step instructions to simplify any problems of installation, operation or repair. Failure to read and comply with installation and operating instructions will void the responsibility New Equipment manufactured by Seller or Service supplied by Seller is warranted to be free from defects in material and workmanship under normal use and service for a period of one year from date of shipment. In the case of spare or replacement parts manufactured by Seller, the warranty period shall be for a period of twelve months from shipment. Seller's obligation under this warranty is limited to repairing or replacing, at its option, any part found to its satisfaction to be so defective, provided that such part is, upon request, returned to Seller's factory from which it was shipped, transportation prepaid. Parts replaced under warranty shall be warranted only from date of repair. This warranty does not cover parts damaged by decomposition from chemical action or wear caused by abrasive materials, nor does it cover damage resulting from misuse, accident, neglect or from improper operation, maintenance, installation, modification or adjustment. This warranty does not cover parts repaired outside Seller's factory without prior written approval. Seller makes no warranty as to starting equipment, electrical apparatus or other material not of its manufacture. If Purchaser or others repair, replace, or adjust Equipment or parts without Seller's prior written approval, Seller is relieved of any further obligation to Purchaser under this section with respect to such Equipment or parts, unless such repair, replacement, or adjustment was made after Seller failed to satisfy within a reasonable time Seller's obligations under this Paragraph. WARNING Shut down pump. Disconnect power to the pump driver before starting any repairs. Refer to Bulletin No. 2880549 for the procedure to follow. 1-1. Disengage the coupling halves. If pin and rubber bushing type, remove the ins; if other type, refer to the coupling manufacturer’s instructions. Disconnect plumbing from water-cooled bearings. 1-2. PUMP. (See figure 1 or 2). Disassemble pump (to the extent required) as follows: NOTE Disassembly and reassembly instructions for both type pumps are included in this bulletin. Disregard the instructions which do not apply to the specific pump being repaired. a. Remove the nuts from the gland bolts (17B) and remove glands (17) from the shaft (6). The gland halves are separable. of the manufacturer and may also result in bodily injury as well as property damage. REPAIR INSTRUCTIONS TYPE TU, TUF-2 STAGE AND TUT, TUTF-3 STAGE CENTRIFUGAL PUMPS This book is intended to be a permanent part of your installation and should be preserved in a convenient location for ready reference. If these instructions should become soiled, obtain a new copy from Peerless Pump Company. Include pump model and/or serial number with your request. WARRANTY Seller's liability for breach of these warranties (or for breach of any other warranties found by a court of competent jurisdiction to have been given by Seller) shall be limited to: (a) accepting return of such Equipment FCA Plant of Manufacture (CPT under Incoterms 2000), and (b) refunding any amount paid thereon by Purchaser (less depreciation at the rate of 15% per year if Purchaser has used Equipment for more than thirty [30] days), and canceling any balance still owing on the Equipment. (c) in the case of Service, at Seller's option, redoing the Service, or refunding the purchase order amount of the Service or portion thereof upon which such liability is based. These warranties are expressly in lieu of any other warranties, express or implied, and Seller specifically disclaims any implied warranty of merchantability or fitness for a particular purpose, and in lieu of any other obligation or liability on the part of the Seller whether a claim is based upon negligence, breach of warranty, or any other theory or cause of action. In no event shall Seller be liable for any consequential, incidental, indirect, special or punitive damages of any kind. SECTION I - DISASSEMBLY WARNING Do not operate this pump at any pressure, flow rate, or liquid temperature other than those for which the pump was originally purchased. Do not pump any other liquid than the one for which the pump was originally purchased without the consent of Peerless Pump or its authorized representatives. Disregard of this warning can result in pump failure and serious personal injury or death. b. Remove all nuts or cap screws from the upper casing (1B) and from the bearing caps (41). Match mark and remove both bearing caps. c. Screw down the jack screws alternately and evenly to separate the upper and lower casings. Turn the jack screws back after the case halves have separated to avoid interference at reassembly. d. Attach a hoist to the eye bolt(s) (customer- furnished), or to a sling through external cross-over, to lift upper casing (1B). Do not use eye bolts to lift pump. 2883820 Rev.10-04

e. Place slings around the shaft near the bearing

housings and lift rotating element from lower casing (1A). Tap lightly on the underside of the bearing housings (31 and 33) to separate the housing from the brackets. f. Place rotating element in a convenient work place. 1-3. ROTATING ELEMENT. Remove the plugs and drain oil from the oil lubricated bearings. Remove constant level oilers (125) and pipe nipples.) (Not required for grease lubricated bearings.) Proceed as follows. a. Loosen set screw and remove the coupling half. Tap from the back of the hub or use a puller. Remove coupling key (46). b. Loosen set screws on the water deflector (40A). c. Remove cap screws or stud nuts from bearing covers (35) and separate covers from housing (31) and (33). (Use care not to damage the oil seal (107)) used with oil lubricated bearings.) d. Lightly tap around housings (31,33) to remove. Do not cock or force housing off, as to do so may damage the bearings (16,18), or the oil seal (107). e. Loosen and remove bearing locknut (22) and lockwasher (69A). f. Remove bearings as described in Figure No. 3. g. Carefully remove shaft collars (68) (if present) and bearing covers (35). Use care not to damage cover gasket (73B) or oil seal (107). NOTE Clearance between collar and shaft is approximately 0.002 inch. Use care when removing not to cock or force, as this will score the shaft. h. Withdraw casing rings (7, 7A). On most pumps these may be withdrawn before removing the coupling half. i. Remove water deflector (40), packing (13), lantern rings (29) and stuffing box bushings (63). Make note of the number of packing rings on each side of the lantern rings. j. Loosen the shaft sleeve (14) set screws near impeller hub. With a spanner wrench, turn the inboard sleeve in the same direction as shaft rotation to remove (shaft has right-and left-hand threads on opposite sides of impeller). NOTE A seal between the shaft and sleeves is made with a 2-1. INSPECTION. Visually inspect parts for damage affecting serviceability or sealing. Emphasize inspection of mating parts having relative motion – wear rings, for example. Perform detail inspection as follows: a. Check O-rings and bearing cover gaskets for cracks, nicks or tears; packing rings for excessive compression, fraying or shredding, embedded particles (dirt or metal). Replace if defective in any way. b. Mount the shaft between lathe centers. Check the eccentricity throughout entire length with a dial indicator to be not more than 0.003 inch total indicator reading. Check that the threads are clean and sharp. Surfaces on which bearings mount must be smooth, have a finish not less than 32 micro-inches, and have shoulders square and free from nicks. c. Measure the OD of the integral impeller wear surfaces rubber O-ring in a groove in the sleeve. Use care not to damage the O-ring. k. Support the back side of first stage impeller (2) with a split ring on the base of a suitable arbor press. Shift the inter-stage bushing (113) toward second (third) stage impeller (2) so that support ring bears on impeller close to shaft (6). Carefully press shaft through impeller (2). l. Take off inter-stage bushing (113) and remove impeller key (32). m. Similarly support second stage impeller (2) with split ring, press shaft through impeller and remove key (32). Remove casing ring (7). n. Support third stage impeller (2) in same manner, press shaft through inter-stage sleeve (58A) and impeller, then remove key (32). o. Press shaft through inter-stage sleeve (58). 1-4. CLEANING. Clean all metal parts (except bearings) with a solvent. Use a bristle brush (NOT metal or wire) to remove tightly adhering deposits. A fiber scraper may be used to remove the gasket and shellac from casing flanges. a. Blow dry with clean dry compressed air. b. Clean bearings as described in 1-5. 1-5. CLEANING BEARINGS. a. Remove bearings from the housings, referring to disassembly instructions. b. Place bearings in a wire basket to there is space for the cleaning solvent to reach all parts. c. Immerse the basket in Stoddard solvent or equivalent, agitating the basket until grease is thoroughly loosened and can be flushed out. d. Place bearing on a screened surface. e. Using a spray gun with air filter and clean Stoddard solvent, flush each bearing until all grease and sludge is removed. f. Blow solvent out of bearings with dry filtered air. g. Lubricate bearings immediately after cleaning with light spindle oil and place them in a covered container. h. Do not spin bearings any time during cleaning. SECTION II INSPECTION AND REPAIR and the ID of the casing rings (7 and 7A). Compute the diametrical clearance (ID minus OD) and compare with the limits given in Figure 5. ID surface of casing ring must be smooth and concentric. For pumps equipped with impeller rings, clearances should not exceed two times the maximum amount shown for pump type in Figure No. 5. d. Measure OD of inter stage sleeve (58) and ID of inter-stage bushing (113). Compute diametrical clearance and compare with limits given in Figure 6. ID surface of inter-stage bushing must be smooth and concentric. Sleeve lands must be free from burrs and flat spots. e. Examine impeller passages for cracks, dents, gouges or embedded material. f. Check upper and lower casing machined surfaces to be free from burrs or nicks. 2 2883820

g. Inspect shaft sleeves (14) for excessive wear.

h. Inspect bearings per Table I. 2-2. REPAIR. Make needed repairs in the following manner: a. If ID of casing ring (7, 7A) is grooved, scored or eccentric, bore to produce a smooth, concentric surface. Do not bore casing ring more than 1/8 inch larger than original ID. If larger bore is required to produce a smooth surface, replacement of casing ring and impeller ring is recommended. Measure and record the new ID. b. If impeller rings are defective, or mating casing rings require boring, remove the old rings by turning in a lathe – be sure machining is concentric with impeller ID. Use care NOT to reduce hub OD. NOTE For bronze impellers and rings, the ring is shrunk on the hub according to standard fit FN-4 of ANSI B4.1 standards. For pumps of 10-inch discharge and larger, the rings are also tack welded to the hub at 3 places 120 degrees apart. Hardened impeller rings are installed according to ANSI B4.1 standard fit FN-1. c. Install new ring son the impeller (shrink or press depending on material) and tack weld if old rings were tacked. The ID is factory-machined for proper fit. d. Turn the OD of the new rings to provide the proper diametrical clearance and to be smooth and concentric with hub bore. Use clearance limit from Figure 5, and ID of casing ring from paragraph 2-2 a. to compute OD of impeller rings. e. Replace worn shaft sleeves. f. Straighten or replace shafts having excessive run-out (eccentricity). Figure 1 TYPE TU TUF-2 STAGE PUMPS WITH INTERNAL OR EXTERNAL CROSS-OVER GREASE LUBRICATED BEARINGS Parts List Item No. Description Item No. Description 1A Lower Casing 32 Impeller Key 1B Upper Casing 33 Outboard Bearing Housing 2 Right Hand Impeller 35 Bearing Cover 2A Left Hand Impeller 40 Water Deflector 6 Shaft 41 Bearing Cap 7 Right Hand Casing Ring 46 Coupling Key 7A Left Hand Casing Ring 58 Inter-stage Sleeve 13 Packing 63 Stuffing Box Bushing 14 Shaft Sleeve 68 Shaft Collar 16 Outboard Bearing 69A Bearing Lock washer 17 Packing Gland 73A Casing Gasket (Not Shown) 17B Gland Bolt 73B Bearing Cover Gasket 18 Outboard Bearing 113 Inter-stage Bushing 22 Bearing Locknut 127 Seal Piping 29 Lantern Ring 128 Inter-stage Sleeve Key 31 Inboard Bearing Housing 130 Shaft Sleeve “O”-Ring 3 2883820

Figure 1A TYPE TU 2 STAGE PUMPS WITH INTERNAL OR EXTERNAL CROSS-OVER OIL LUBRICATED BEARINGS

Parts List Item No. Description Item No. Description 1A Lower Casing 33 Outboard Bearing Housing 1B Upper Casing 35 Bearing Cover 2 Right Hand Impeller 40 Water Deflector 2A Left Hand Impeller 41 Bearing Cap 6 Shaft 46 Coupling Key 7 Right Hand Casing Ring 58 Inter-stage Sleeve 7A Left Hand Casing Ring 63 Stuffing Box Bushing 13 Packing 68 Shaft Collar 14 Shaft Sleeve 69A Bearing Lock-washer 16 Outboard Bearing 73A Casing Gasket (Not Shown) 17 Packing Gland 73B Bearing Cover Gasket 17B Gland Bolt 107A Oil Retaining Shield 18 Outboard Bearing 113 Inter-stage Bushing 22 Bearing Locknut 125 Constant Level Oiler (Not Shown) 29 Lantern Ring 127 Seal Piping 31 Inboard Bearing Housing 128 Inter-stage Sleeve Key 32 Impeller Key 130 Shaft Sleeve “O”-Ring Coolant flow per bearing is 1 US GPM @ 50 Psig maximum, coolant temperature 90º F. . maximum. Normal coolant medium is water 2883820 4

FIGURE 2 – TUT, TUTF 3 STAGE

GREASE LUBRICATED BEARINGS 2874541 Rev. 3-88 Parts List Item No. Description Item No. Description 1A Lower Casing 35 Bearing Cover 1B Upper Casing 40 Water Deflector 2 Right Hand Impeller 41 Bearing Cap 2A Left Hand Impeller 46 Coupling Key 6 Shaft 58 Inter-stage Sleeve 7 Right Hand Casing Ring 58A Inter-stage Sleeve A 7A Left Hand Casing Ring 63 Stuffing Box Bushing 13 Packing 68 Shaft Collar 14 Shaft Sleeve 69A Bearing Lock washer 16 Outboard Bearing 73A Casing Gasket (Not Shown) 17 Packing Gland 73B Bearing Cover Gasket 17B Gland Bolt 113 Inter-stage Bushing 18 Outboard Bearing 127 Seal Piping 22 Bearing Locknut 128 Inter-stage Sleeve Key 29 Lantern Ring 130 Shaft Sleeve “O”-Ring 31 Inboard Bearing Housing 32 Impeller Key 33 Outboard Bearing Housing 5 2883820

FIGURE 2A – TUT 3 STAGE

OIL LUBRICATED BEARINGS 4858505 Rev. 3-88 Parts List Item No. Description Item No. Description 1A Lower Casing 35 Bearing Cover 1B Upper Casing 40 Water Deflector 2 Right Hand Impeller 41 Bearing Cap 2A Left Hand Impeller 46 Coupling Key 6 Shaft 58 Inter-stage Sleeve 7 Right Hand Casing Ring 58A Inter-stage Sleeve A 7A Left Hand Casing Ring 63 Stuffing Box Bushing 13 Packing 68 Shaft Collar 14 Shaft Sleeve 69A Bearing Lock washer 16 Outboard Bearing 73A Casing Gasket (Not Shown) 17 Packing Gland 73B Bearing Cover Gasket 17B Gland Bolt 107A Oil Retaining Shield 18 Outboard Bearing 113 Inter-stage Bushing 22 Bearing Locknut 125 Constant Level Oiler (Not Shown) 29 Lantern Ring 127 Seal Piping 31 Inboard Bearing Housing 128 Inter-stage Sleeve Key 32 Impeller Key 130 Shaft Sleeve “O”-Ring 33 Outboard Bearing Housing Coolant flow per bearing is 1 US GPM @ 50 Psig maximum, coolant temperature 90º F. . maximum. Normal coolant medium is water 2883820 6

FIGURE 2, BEARING REMOVAL AND MOUNTING

BEARING REMOVAL -COURTESY OF NEW DEPARTURE- USING AN ARBOR PRESS 1. PLACE THE BEARING ON TWO FLAT BLOCKS SO THAT THEY CONTACT THE INNER RING OR BOTH RINGS OF THE BEARING. 2. HOLD SHAFT STRAIGHT – FORCE THE SHAFT BY A STEADY PRESSURE, UNTIL THE BEARING IS SEATED AGAINST THE SHAFT SHOULDER. USING TUBING 1. PLACE THE BEARING ON SHAFT. 2. PLACE TUBING OVER SHAFT IN CONTACT WITH THE INNER RING OF THE BEARING. 3. APPLY HAMMER ALTERNATELY AT OPPOSITE POINTS – AVOID COCKING. USING A BEARING PULLER 1. PLACE BEARING PULLER BEHIND BEARING INNER RING. SET PULLER JAWS SO THAT THEY WILL NOT SLIP OVER THE INNER RING AND DAMAGE SPARATOR OR SHIELD WHEN PRESSURE IS APPLIED. 2. FORCE BEARING OFF SHAFT BY A STRAIGHT PULL. DO NOT COCK BEARINGS. USING AN ARBOR PRESS 1. REST THE BEARING INNER RING OR BOTH RINGS (NEVER THE OUTER RING ONLY) AGAINST A PAIR OF FLAT BLOCKS. 2. FORCE THE SHAFT OUT BY A STEADY PRESSURE – KEEP SHAFT STRAIGHT – DO NOT ALLOW SHAFT TO COCK OR DROP. 7 2883820

IMPELLER/CASE WEAR RING DIAMETERICAL CLEARANCES (INCHES)

0.010 0.014 1½ TU7, 15TU7A2, 15TUT7A3, 2TU8, 2TU8A2, 2TU10, 2TU10A2, 2TU10G2, 2TU12, 2TU12A2, 3TU10, 3TU10A2, 3TU13, 3TU13A2, 3TU13G2, ,3TU13 ½, 3TU135A2, 3TU135G2, 3TUT13, 3TUT13A3, 3TUT13G3, 0.012 0.016 4TU10, 4TU10A2, 4TU11A2, 4TUF11, 4TU14,4TUF5, 4TU14A2, 4TU14G2, 4TUT14A3, 4TUT14G3, 4TUTF14, 5TU13, 5TU13B, 5TU13B2, 5TUF13B, 5TU15, 5TU15A2, 5TUF7, 5TUT16, 5TUT16B, 5TUT16C3, 5TUT16G3, 5TUT16N3, 5TUTF16B 0.014 0.018 6TU16, 6TU16B, 6TU16C2, 6TU16G2, 6TUF10 0.018 0.022 8TU16, 8TU16A2, 8TU16F, 8TU16G2, 8TU17, 8TUF15, 10TU22B 0.022 0.026 10TU22C, 10TU22C2 FIGURE 5 INTERSTAGE SLEEVE/BUSHING DIAMETRICAL CLEARANCES (INCHES) 0.008 0.012 1½ TU7, 15TU7A2, 2TU8, 2TU8A2, 2TU10, 2TU10A2, 2TU10G2, 2TU12, 2TU12A2, 3TU10, 3TU10A2, 3TU13, 3TU13A2, 3TU13G2, ,3TU13 ½, 3TU135A2, 3TU135G2, 4TU10, 4TU10A2, 4TU11A2, 4TU14, 4TU14A2, 4TU14G2, 4TUF5, 5TU13, 5TU13B, 5TU13B2, 5TUF13B, 5TU15, 5TU15A2, 5TUF7, 6TU16, 6TU16B, 6TU16C2, 6TU16G2, 6TUF10, 1 ½TUT7-3, 15TUT7A3, 3TUT13, 3TUT13A3, 3TUT13G3, 4TUT14, 4TUT14A3, 4TUT14G3,4TUTF14, 5TUT16, 5TUT16B, 5TUT16C3, 5TUT16G3, 5TUT16N3, 5TUTF16B 0.010 0.014 8TU16, 8TU16A2, 8TU16F, 8TU16G2, 8TU17, 8TUF15, 10TU22B 0.020 0.024 10TU22C, 10TU22C2 FIGURE 6 NOTE Clearances are for standard bronze or cast iron fitted pumps. For materials with a tendency to gall, such as stainless steel, increase clearance approximately .010 inch. 2883820 8

SECTION III – REASSEMBLY

Figure 7. Vane Position for Proper Rotation 3-1. ROTATING ELEMENT. (See Figure 7 or 8). Reassemble as follows: a. Coat shaft (6) lightly with oil. Re-oil as necessary while pressing on impellers and sleeves. b. Install 3/16 square key in shaft. With grooves, square shoulder side, facing toward the highest number stage, press interstage sleeve (58) on outboard end of shaft, locating centrally between first two key slots. Slide interstage bushing (113) over sleeve. Figure 8. Assembly Relationship of Interstage Sleeve (58) c. Insert key (32), align third (or second) stage impeller (2B) and press on inboard end of shaft to contact inter- stage sleeve. d. Press on interstage sleeve (58A) to contact third stage impeller. Located casing ring (7) on third stage impeller ring (8). e. In turn, insert remaining keys (32), align second and/or first stage impellers (2A, 2) and press on shaft. Carefully bump parts to remove all clearance and so that first and second stage impeller hubs extend equally beyond central portion of shaft (slightly into threaded portions). f. Install O-rings in shaft sleeves (14), coat ring and shaft with oil and screw sleeves on shaft against impeller hubs. g. Install the stuffing box bushing (63) and lantern ring (29) on the shaft. h. Locate casing rings (7) on impeller. i. Place water deflectors (40) on shaft. j. Slide bearing covers (35) (with oil seals (107) installed for oil lubricated bearings) on the shaft. k. Place shaft collars (68) on the shaft. l. Mount the bearings (16) and (18) as described in Figure 3. The outboard bearings are two single row angular contact bearings mounted in the duplex DB mounting. m. Install bearing lockwasher (69A) and locknut (22) (oil thrower) and tighten against the outboard bearing. n. Install gaskets (73B) on bearing covers. Cut replace-ment gaskets from 1/16 inch No. 444 Vellumoid. Apply cement (i.e. Permatex No. 2) to bearing cover gaskets when bearings are water-cooled. o. Slide the housings (31, 33) over the bearings. Tap lightly and evenly around the end as necessary. Do not force. p. Attack the bearing covers (35). In the assembled position, the grease fittings or breather tubes must be located on top. q. Locate water deflector (40) and tighten the setscrews. Install oil seal (107) in the inboard bearing housing (31) (for oil lubricated bearings). r. Install coupling key; assemble coupling half on the shaft and tighten the setscrew. s. Check run out of the interstage sleeves on assembled rotor. Maximum run out must not exceed .006 TIR. 3-2. PUMP. Complete the assembly of pump as follows: a. Use the upper casing (1B) as a template to cut a gasket (73A) from 1/64 inch Vellumoid. Machined surfaces of both casings must be perfectly clean and free from burrs and nicks. b. Affix the new gasket to lower casing (1A) with shellac. c. Use slings around the shaft near bearings to set rotating element into lower casing. Position the casing rings (7, 7A), and both bearing housings so that all dowel pins engage. If necessary, loosen setscrews of water and grease deflectors to shift bearing housings slightly. Retighten screws. d. Assemble both bearing caps (41) and tighten the cap screws. e. If impellers are not (approximately) centered in volute or impellers are not allowing case rings to seat in casing, adjust shaft sleeves by loosening one and tightening the other in direction required. Tighten setscrews in sleeve after final adjustment is made. Recheck run out of inter-stage sleeves. If run out exceeds. 006 TIR, do not proceed until problem is corrected. f. Cover the topside of the casing gasket with a mixture of graphite and oil. Install the gland bolts (17B). Carefully locate the upper casing on the lower, making certain the dowel pins engage. Attach case nuts and alternately tighten at diagonally opposite positions. See Torque Chart, Table II. Rotate shaft by hand to check that it runs free. g. Withdraw the lantern rings (29) and push the bushings (63) to the rear of the stuffing boxes. Insert the same number of packing rings as were found during disassembly on each side of the lantern ring. Insert each ring separately and stagger the joints of successive rings 90 degrees. Insert the glands (17) and set the nuts tight – DO NOT USE A WRENCH. h. Rotate shaft by hand to check that it runs free. i. Replace all drain plugs removed during disassembly. 3-3.Reinstall plumbing (if used) for water-cooled bearing. a. Relubricate the bearings. Refer to Bulletin No. 2880549 for grease type recommendation. It is most important to provide proper lubrication and keep bearings clean. Fre- quency of lubrication must be determined by experience as it depends upon bearing size, speed, operating conditions and location (environment). Table III should be used as 9 2883820

(Failures – Replace if found)

DEFECT (Failure) Flaking and cracking APPEARANCE In the early stages, the surface of the inner and outer races develop small cracks, which flake. The cracks and flaking ultimately spread over the entire race surface. PROBABLE CAUSE 1. Normal fatigue failure. Bearing loads in excess of bearing capacity caused by misalignment. Indentations Indentations or cavities in the inner and outer races. 1. Dirt in the bearings. 2 Excessive impact loading of the bearings such as improper mounting or removal. Broken separator (cage) Cracked separator or separator in pieces. Poor Lubrication. 1. Misalignment of shaft. 2. Excessive shaft deflection. Wear Bore and OD of outer ring of bearing galled or braided. 1. Fit on shaft or in housing too loose. 2 . Bearing locked by dirt and turning on shaft or in housing. Fractured ring Hairline cracks or complete ring fracture. 1. Forcing a cocked bearing on or off a shaft. 2. Too heavy a press fit. Discoloration Rolling elements and races darker than Normal appearance of bearing metal. (Moderate discoloration of rolling elements and races not a reason for discard.) 1. Inadequate lubrication. Corrosion Rolling elements and raceways rusted. 1. Water entering the housing. 2. Condensation inside the housing. Lubricant breaks down into acid. (Wrong lubricant. TABLE II TORQUE VALUECHART TORQUE VALUE (FT- LB) TORQUE VALUE CHART TORQUE VALUE (FT-LB) SIZE INCH MEDIUM CARBON STEEL, SAE 5, 105-120,000 PSI, MAT’L CODE 509 3/4 210-225 7/8 305-325 1 450-475 1-1/8 605-635 1-1/4 850-890 1-1/2 1465-1525 Torque values shown are for clean and lubricated threads: gasketed joints. Studs must be driven tight in lower casing when used. Install upper case, tighten center nut (or cap screws) then work out from center to each side, tightening with torque wrench to values shown in Table II. 2883820 TABLE III GREASING FREQUENCY (See Table IV for amounts) SERVICE Normal, 8-hour day operation, Room free of dust and damaging atmosphere. GREASE EACH 6 Months Severe, 24-hour day operation. room with moderate dust and/or damaging atmosphere, or outdoor service. 1 Month Light, approximately 10-hour eek. Room relatively free of dust and damaging atmosphere. 1 Year TABLE IV AMOUNT OF GREASE FOR BALL BEARINGS OUNCES GRAMS MODEL 1.3 1.4 2.0 3.0 4.5 5.8 9.5 17.0 36.4 39.2 56 84 126 162.4 266 476 1½TU7, 1½TUT7-3, 15TU7A2, 15TUT7A3 2TU8, 2TU8A2, 2TU10, 2TU10A2, 2TU10G2, 2TU12, 2TU12A2, 3TU10, 3TU10A2 3TU13, 3TU13A2, 3TU13G2, 3TU13½, 3TU135A2, 3TU135G2, 4TU14,4TUF5, 4TU14A2, 4TU14G2, 4TUF14, 4TU11A2, 4TUF11, 3TUT13, 3TUT13A3, 3TUT13G3 5TU15, 5TU15A2, 5TUF7 5TU13, 5TU13B, 5TU13B2, 5TUF13B, 6TU16, 6TU16B,6TUF10, 6TU16C2, 6TU16G2, 5TUT16, 5TUT16B, 5TUT16C3, 5TUT16G3, 5TUT16N3, 5TUTF16 8TU16, 8TU16A2, 8TU16F, 8TU16G2, 8TU17, 8TUF15 10TU22B, 10TU22C, 10TU22C 10

a guide for grease re-lubrication.

b. Oil. (Pumps are shipped without oil in the bearing housings.) Be sure to fill and adjust constant level oilers before initial start of pump (see Figure 9). (1) Adjust dust cap to lowest possible position on base fittings. (2) The pipe nipple and base fitting must be level; check with spirit level. If pipe nipple is bent, replace it. A constant level oiler that is not level will not provide proper lubrication to the bearings. (3) Fill bottle, screw it into the dust cap as far as it will go- do not force. Allow the oil to flow into the bearing housing. Repeat this procedure until there remains a supply of oil in the bottle. Never fill bearing housing through base fitting. (4) Check the breather tube for cleanliness. The breather tube must be used with the oil lubrication system. (5) The bottle on the constant level oilers is made of plastic- the oil temperature must never exceed 170 degrees Fahrenheit. Or solvents such as alcohol be put in it. For such applications, use a glass bottle. c. Consult the driver manufacturer’s Maintenance instructions for lubricants and re-lubrication procedure for the driver bearings. d. Replace coupling guard. 3-4. TEST. Follow instructions in Bulletin No. 2880549 to check out the pump after repair. 3-5. TROUBLES. To reliably establish the malfunction-ing of either the pump or driver, instruments such as tachometers, pressure gauges and electric meters must be in proper working condition and preferably of recent calibration. In many cases, much time and expense have been expended with faulty instruments. Table V lists a number of troubles commonly occurring. If unable to determine the cause, and remedy the trouble, from this list, refer the problem to the Peerless representative. LUBRICATING INSTRUCTIONS 1. The pump is shipped without oil in the LUBRICATING OILS bearing housings. A high quality turbine oil of 330SSU viscosity at 100 degrees 2. Change the first oil after operating 1000 Fahrenheit with rust and oxidation inhibitors should be used. hrs. or 60 days, whichever occurs sooner. 3. Frequency of oil change thereafter is RECOMMENDED OIL MANUFACTURERS dictated by service conditions. It is suggested, however, that oil changes occur at least every 3,000 hrs. of operation. 4. In order to keep the bearing housings vented, the breather tubes and filters must be kept clean. Atlantic Richfield DURO S-315, DURO AW S-315 Chevron CHEVRON OC TURBINE OIL-68 Exxon TERESSTIC 68 Gulf GULF HARMONY 68 Mobil DTE 26 300SSU Sunoco SUNVIS 968 FIGURE 9 TABLE V-TROUBLES TROUBLE PROBABLE CAUSE REMEDY Failure to deliver liquid or sufficient pressure. Pump not primed. Pump not up to speed. Discharge head too high. Insufficient available NPSH. Incorrect direction of rotation. Air leaks in suction line or through suction end stuffing box, suction pressure below atmospheric. Impeller passages restricted. Worn impeller sealing diameters or mating stationary part bores. Damaged impeller. Foot valve too small or restricted by dirt. Leaking discharge check valve on stand-by pump. Recirculation valve open or leaking Re-prime. Check for low motor voltage or motor over- load. Other drives, increase driver speed when possible. Check to see that all discharge valves are opened and the discharge line is free from obstructions. In some cases, the installation has to be altered or a pump of suitable rating must be provided. Check NPSH requirements of pump and increase system NPSH accordingly. Check rotation of driver. Tighten packing. Check for air leaks past O-ring under sleeve. Passage from eye side shroud of first stage impeller to suction stuffing box must be open to deliver sealing fluid to packing. Check suction line joints for air leakage. Check mechanical seal if installed. Disassemble the pump and clean impeller. Repair or replace impeller and/or stationary parts. Repair or replace impeller. Replace with adequate size foot valve or clean foot valve. Repair or replace. Close, repair or replace. 11 2883820

TABLE V-TROUBLES (continued)

TROUBLE PROBABLE CAUSE REMEDY Pump loses prime after starting Air leaks in suction line. Insufficient available NPSH Tighten packing. Check for air leaks between sleeve and shaft and replace O-ring if there is an air leak. Check all suction line joints for bad gaskets and loose joints. Check NPSH requirements of the pump and increase the system available NPSH accordingly. Overload on driver Pump speed high. Total head lower than rating. Tight packing. Liquid is of higher specific gravity or Viscosity than rating. Mechanical trouble of pump or driver. Motor voltage higher than name plate rating will cause the motor to run faster. Either reduce motor voltage or trim impeller diameter. On other drives, reduce speed if possible. If speed reduction not realized, trim impeller diameter.** Check suction and discharge pressures and determine the total dynamic head. If TDH lower than ratings, throttle discharge to rated TDH or, if this is not possible, reduce impeller diameter.** Stop pump – following proper repacking pr- cedure. Check for scored sleeve; and for sleeve run-out if packing wears rapidly. Replace sleeve and packing as required. Check with Peerless distributor to determine If a larger motor is required. See if pump and motor turn freely. Check impeller fit, shaft straightness and ball bearings. Pump vibrates or is noisy Driver unbalanced. Misalignment Cracked foundation. Worn ball bearings. Unbalanced impeller. Bent shaft. Disconnect driver and operate it alone. Check pump for large pieces of debris, such as wood, rags, etc. Realign pumping unit. Replace foundation. Replace bearings. Check lubricants for proper Grade. Check pump alignment. Check for Condensation on water cooled bearings. Rebalance. Replace ** Always obtain new trim diameter from Peerless Pump Company representative. 3-6. SPARE PARTS. To keep delays to a minimum when pump repairs are required, we suggest that the following spare parts be stocked. The number of each part required depends upon the application. For a minimum, we recommend: (A) One inboard bearing. (B) One outboard bearing. (C) One set of shaft sleeves for packed pumps. (D) 2-4 sets of packing for packed pumps or a set of mechanical seals for pumps so equipped. (E) One set of case wear rings when fitted. (F) In some cases, an entire rotating element should be stocked. 3-7. To obtain quick and accurate service when ordering spare parts, provide the following information: (A) Pump size and type as noted on nameplate. (B) Pump serial number as noted on nameplate. (C) The name and number of the parts as shown on the sectional drawings. (D) Quantity required of each item. Aid may be obtained from the Peerless Pump Company representative, or an authorized distributor, for planning an adequate supply of spare parts. NOTICE: Materials of construction, specifications, dimensions, design features, and application information, where shown in this bulletin, are subject to change and/or modification without notice by Peerless Pump Company at their option. Peerless Pump Company P.O. Box 7026- Indianapolis, IN 46207-7026 Phone: (317) 925-9661-Fax: (317) 924-7388 BULLETIN NO. 2883820 Rev 10-04 12

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