CL Series - Service Manual
Contents
1. 5 26 5 2824 20 23 15 26 47 20 23 10 an ad OE 3 ir ER COOLED TYPE EG WATER COOLED JOHN CRANE BALANCED DOUBLE SEAL DOUBLE 8 a SEAL 19 1 DG SEAL FOR THE CL4311 AND CL6410 P ONLY ip E PARTS THAT DIFFER ON THE DG SEAL 49 182. Motor Stuffing Box John Crane John Crane Double 8 Seal 180TC NEMA Frames 210TC NEMA Frames 280TSC NEMA Frames 320TSC NEMA Frames Part Part Part Part Part Part Number Number Number Number Number Number 9612 7065 01 9612 7066 01 9612 7067 01 9612 7068 01 9612 7068 02 9612 7069 01 189888 189952 7612 7114 01 9612 7315 01 9612 7032 01 9612 7037 01 9612 7036 01 9612 7314 01 9612 7317 01 9612 7311 01 9612 7313 01 483052 180701 180037 180260 483075 189888 189952 9612 7075 01 9612 7315 01 9612 7031 01 9612 7037 02 9612 7036 02 9612 7314 01 9612 7317 01 9612 7311 01 N A 480325 189741 180070 180259 483075 189888 189952 9612 7075 02 9612 7315 01 9612 7033 01 9612 7037 05 9612 7036 05 9612 7314 02 9612 7317 01 9612 7311 01 N A 480328 189741 180070 180259 483075 189888 189952 7612 7075 03 9612 7315 01 9612 7034 01 9612 7037 03 9612 7036 03 9612 7314 03 9612 7317 01 9612 7311 01 N A 480338 180148 189952 180259 483626 Refer to Motor price booklet 189888 189952 9612 7075 03 9612 7315 01 9612 7034 01 9612 7037 03 9612 7036 03 9612 7314 03 9612 7317 01 9612 7311 01 N A 480355 180148 189952 180259 483626 Refer to Seal Replacement Parts later in this manual Refer to Seal Replacement Parts later in this manual 189888 189952 9612 7075 03 9612 7315 01 9612 7035 01 9612 7037 06 9612 7036 06 9612 7314 03 9612 7317 01 9612 7311 01 N A N A N
3. into casing 1 using Allen screws 9 and washers 38 NOTE A rear elastomer gasket is required when using a front PTFE gasket Install o ring 27 rear stationary seal 26 and o ring 20 into stuffing box 47 Install John Crane Double 8 Seal 48 onto casing stationary seal Install two screws 23 to secure stuffing box to casing MAINTENANCE Torque screw to 180 Ib in or 15 ft lb 21Nm n On CL4311 and Cl6410 30 Ib ft 41Nm Slide casing 1 with the assembled seals onto the stub shaft Use caution when sliding assembled seals and stuffing box onto stub shaft Install casing 1 to pump adapter with nuts 13 and washers 14 Tighten nuts and washers Screw impeller 2 to stub shaft Tighten the set screws on the John Crane seal to keep it from rotating independently on the shaft To do this a Rotate the seal until you can see a set screw when you are looking through the top flushing pipe hole Using a 5 e4 Allen wrench tighten the set screw through the flushing pipe hole Repeat this procedure until all four screws have been tightened Install o ring 5 in impeller Install impeller screw 4 on stub shaft Note that impeller screw is metric wrench size is 13mm Torque impeller screw to 180 Ib in or 15 Ib ft 21 Nm 11 Install flushing pipes 24 to stuffing box ea z a LA FAN 7 is JA 2 I pg B Lo Ul WME WIM RE C7 v Install cover 3 onto casing 1 with w
4. Part Number 9612 7301 01 9612 7301 02 9612 7301 03 9612 7303 01 9612 7008 01 9612 7130 02 9612 7130 01 9612 7130 03 9612 7130 04 9612 7000 01 9612 7115 01 9612 7115 02 9612 7116 01 9612 7009 02 9612 7312 01 9612 7300 01 9612 7300 02 9612 7300 03 9612 7117 01 9612 7007 01 9612 7302 01 9612 7129 01 9612 7317 01 9612 7320 02 CL4311 Part Number 9612 7325 02 9612 7325 01 9612 7325 03 189643 9612 7184 01 9612 7321 02 9612 7321 01 9612 7321 03 9612 7321 04 9612 7000 01 9612 7181 01 9612 7181 02 9612 7182 01 9612 7173 01 9612 7319 01 9612 7300 01 9612 7300 02 9612 7300 03 9612 7324 01 9612 7007 01 9612 7302 01 9612 7129 01 9612 7317 01 9612 7320 03 Included in seal kits Buna N kit number 9612 7118 08 For models CL4311 or CL6410 order 9612 7177 08 Buna N SiC kit number 9612 7119 08 For models CL4311 or CL6410 order 9612 7177 11 EPDM kit number 9612 7118 07 For models CL4311 or CL6410 order 9612 7177 07 EPDM SiC kit number 9612 7119 07 For models CL4311 or CL6410 order 9612 7177 10 SFY kit number 9612 7118 09 For models CL4311 or CL6410 order 9612 7177 09 SFY SiC kit number 9612 7119 09 For models CL4311 or CL6410 order 9612 7177 12 Click here to Order Parts PARTS LIST SEAL REPLACEMENT PARTS Type EG Water cooled Balanced Double Seal All Models except Description CL4311 or CL6410 O Ring Buna N O Ring EPDM O Ring SFY Fluoroelas
5. screws 30 and washers 31 Remove compression ring 36 threaded compression ring 35 and retaining ring 40 used on 1 5 HP and 2 HP motors only by removing screws 37 and washers 38 Note that hex head screws are metric wrench size is 10mm Remove pin 39 from stub shaft 34 as required Remove stub shaft from motor shaft as required 1 Remove leg brackets 41 from motor 46 by removing hex head cap screws 42 and washers 43 2 Remove adjustable legs 45 from leg brackets 41 by removing set screws 44 MAINTENANCE INSPECTION Inspect o rings seals and gaskets for reuse Worn o rings seals and gaskets should be replaced Inspect seal faces for scoring or cracks Replace any seal faces that are damaged Inspect stub shaft and other metal parts for wear or damage Inspect impeller for damage from cavitation Cavitation damage appears as pitting on the impeller surfaces ASSEMBLY A CAUTION malfunction Use only Tri Clover spare parts when replacing any component of the CL pump Use of non Tri Clover parts could result in pump damage or Before assembly lubricate o rings and gaskets with a food grade silicone spray Tri Clover part number L 1011B or equivalent It is important that the surface of the rotating seal be wiped clean of any foreign matter dirt dust oil from fingers etc prior to assembly Clean surface in accordance with good
6. 07 01 9612 7306 01 9612 7307 01 Refer to Seal Replacement Parts later in this manual Other port connections available upon reguest Contact Tri Clover for details Cut down impeller sizes available upon reguest Contact Tri Clover for details Click here to Order Parts PARTS LIST CL PUMP REPLACEMENT PARTS Key No 1 Casing Tri Clamp Industrial Description 9612 7100 15 9612 7100 04 9612 7100 01 9612 7169 50 9612 7169 02 9612 7110 15 9612 7110 04 9612 7110 01 9612 7170 01 9612 7325 01 9612 7325 02 9612 7325 03 9612 7309 01 9612 7326 01 9612 7323 02 9612 7323 01 9612 7323 03 1 Casing Tri Clamp Sanitary 1 Casing Tri Clamp Sanitary Plus 2 Impeller Full Size Industrial Impeller Full Size Sanitary San Plus Cover Tri Clamp Industrial Cover Tri Clamp Sanitary Cover Tri Clamp Sanitary Plus Impeller Screw O ring Buna N O ring EPDM O ring SFY Fluoroelastomer Wingnut Stud Casing Cover Cover O ring Buna N Cover O ring EPDM Cover O ring SFY Fluoroelastomer 9 12 Seal Parts 13 Nut Casing Adapter 14 Washer Casing Adapter co co OO d A wn wA nou 9612 7306 01 9612 7301 01 9612 7092 15 9612 7092 04 9612 7092 01 9612 7043 50 9612 7043 02 9612 7102 15 9612 7102 04 9612 7102 01 9612 7070 02 9612 7301 01 9612 7301 02 9612 7301 03 9612 7308 01 9612 7304 01 751560 751543 751519 9612 7306 01 9612 7307 01 9612 7097 15 961
7. 10 with a type EG seal Click here to Order Parts PARTS LIST SEAL REPLACEMENT PARTS JOHN CRANE DOUBLE 8 SEAL Description Screw Seal Gland Seal Gland Front amp Rear Stationary Seal Gaskets Buna N Front amp Rear Stationary Seal Gaskets EPDM Silicone Carbide Stationary Seal O ring Stuffing Box Buna O ring Stuffing Box EPDM O ring Stuffing Box SFY Stationary Seal Rear SiC Stationary Seal Rear Stainless Steel O Ring Stationary Seal Buna O Ring Stationary Seal EPDM O Ring Stationary Seal SFY fluoroelastomer Stuffing Box John Crane Double Seal Type 8B2 Viton John Crane Double Seal Type 8B2 EPDM Included in seal kits Buna N kit number 9612 7118 05 Buna N SiC kit number 9612 7119 05 EPDM kit number 9612 7118 04 EPDM SiC kit number 9612 7119 04 All Models except CL4311 or CL6410 Part Number 9612 7303 01 9612 7008 01 9612 7130 02 9612 7130 01 9612 7000 01 9612 7300 01 9612 7300 02 9612 7300 03 9612 7113 01 9612 7113 02 9612 7316 02 9612 7316 01 9612 7316 03 9612 7111 02 9612 7318 01 9612 7318 02 SFY Fluoroelastomer kit number 9612 7118 06 SFY Fluoroelastomer SiC kit number 9612 7119 06 Tri Clover manufactures a complete line of TRI WELD fittings TRI CLAMP fittings BEVEL SEAT fittings POSITIVE PUMPS CENTRIFUGAL PUMPS AUTOMATIC Air Actuated VALVES AUTOMATED FLOW CONTROL SYSTEMS Terms Warranty Provi
8. 2 7097 04 9612 7097 01 9612 7046 50 9612 7046 02 9612 7107 15 9612 7107 04 9612 7107 01 9612 7070 02 9612 7301 01 9612 7301 02 9612 7301 03 9612 7309 01 9612 7305 01 751563 751558 751536 9612 7306 01 9612 7307 01 9612 7098 15 9612 7098 04 9612 7098 01 9612 7041 50 9612 7041 02 9612 7108 15 9612 7108 04 9612 7108 01 9612 7070 02 9612 7301 01 9612 7301 02 9612 7301 03 9612 7309 01 9612 7305 01 751578 751559 751542 9612 7306 01 9612 7307 01 CL4311 CL4359 CL4378 CL4387 CL4488 Part Number 9612 7099 15 9612 7099 04 9612 7099 01 9612 7042 50 9612 7042 02 9612 7109 15 9612 7109 04 9612 7109 01 9612 7070 02 9612 7301 01 9612 7301 02 9612 7301 03 9612 7309 01 9612 7305 01 751578 751559 751542 Refer to Seal Replacement Parts later in this manual 9612 7306 01 9612 7307 01 15 28 Seal Parts Refer to Seal Replacement Parts later in this manual Other port connections available upon reguest Contact Tri Clover for details Smaller impeller sizes available upon reguest Contact Tri Clover for details Click here to Order Parts CL PUMP REPLACEMENT PARTS Description Adapter Screw Motor Washer Motor Seal Guard Screw Seal Guard Stub Shaft Compression Ring Threaded Compression Ring Screw Compression Ring Washer Compression Ring Pin Stub Shaft Retaining Ring Stub Shaft Leg Bracket Screw Leg Bracket Washer Leg Bracket Set Screw Adjustable Leg Adjustable Leg
9. 21 01 9612 7321 03 9612 7321 04 9612 7178 01 9612 7181 01 9612 7181 02 9612 7182 01 9612 7173 01 9612 7319 01 9612 7317 01 Included in seal kits Buna N kit number 9612 7118 02 For models CL4311 or CL6410 order 9612 7177 02 Buna N SiC kit number 9612 7119 02 For models CL4311 or CL6410 order 9612 7177 05 EPDM kit number 9612 7118 01 For models CL4311 or CL6410 order 9612 7177 01 EPDM SiC kit number 9612 7119 01 For models CL4311 or CL6410 order 9612 7177 04 SFY kit number 9612 7118 03 For models CL4311 or CL6410 order 9612 7177 03 SFY SiC kit number 9612 7119 03 For models CL4311 or CL6410 order 9612 7177 06 Click here to Order Parts SEAL REPLACEMENT PARTS Type FG Water cooled Single Seal Description O Ring Buna N O Ring EPDM O Ring SFY Fluoroelastomer Screw Seal Gland Seal Gland Front amp Rear Stationary Seal Gaskets Buna N Front amp Rear Stationary Seal Gaskets EPDM Front amp Rear Stationary Seal Gaskets SFY Front Gasket Stationary Seal PTFE Silicone Carbide Seal Rotating Seal Carbon includes cup Rotating Seal SIC includes cup Spring Drive Collar Stainless Steel Pin Drive Collar O ring Stuffing Box Buna O ring Stuffing Box EPDM O ring Stuffing Box SFY Single Flush Lip Seal Stuffing Box Screw Stuffing Box Flush Pipe Washer Compression Ring Seal Installation Tool except CL4311 All Models
10. A N A N A N A Click here to Order Parts No 29 30 31 32 33 34 35 36 97 38 39 40 41 42 43 44 45 46 47 48 Adapter Screw Motor Washer Motor Seal Guard Screw Seal Guard Stub Shaft Compression Ring Threaded Compression Ring Screw Compression Ring Washer Compression Ring Pin Stub Shaft Retaining Ring Stub Shaft Leg Bracket Screw Leg Bracket Washer Leg Bracket Set Screw Adjustable Leg Adjustable Leg Motor Stuffing Box John Crane John Crane Double 8 Seal PARTS LIST CL PUMP REPLACEMENT PARTS 213 215 TC 254 256 TC 284 286 TC 324 365 TSC 405 TSC Pare Number 9612 7205 03 9612 7205 03 9612 7205 01 189888 189971 9612 7171 01 9612 7315 01 9612 7198 02 9612 7037 05 9612 7036 05 9612 7314 02 9612 7317 01 9612 7311 01 480328 189741 180070 180259 483075 483075 189888 189971 9612 7171 01 9612 7315 01 9612 7188 02 9612 7037 03 9612 7036 03 9612 7314 03 9612 7317 01 9612 7311 01 480338 180148 189952 180259 483626 483626 189888 189971 9612 7171 01 9612 7315 01 9612 7186 02 9612 7037 04 9612 7036 04 9612 7314 03 9612 7317 01 9612 7311 01 480355 180148 189952 180259 483626 483626 9612 7205 02 189797 189569 9612 7171 01 9612 7315 01 9612 7086 02 9612 7037 04 9612 7036 04 9612 7314 03 9612 7317 01 9612 7311 01 Refer to Motor price booklet Refer to Seal Replacement Parts later in this manual Refer to Seal R
11. CLEANING DO exercise caution and wear protective clothing when using lye or acid for cleaning These instructions contain operating and service information for the pump only Motor information is provided separately by the motor manufacturer SAFETY IMPORTANT SAFETY INFORMATION The following DANGER WARNING AND CAUTION signs and their meanings are used within these instructions A DA Indicates an imminently hazardous situation which if not avoided will result in death or serious injury The word Danger is used in the most extreme cases AWARNING Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury May also be used to alert against an unsafe operating or maintenance practice ACAUTION Indicates a potentially hazardous situation which if not avoided could result in death or serious injury TECHNICAL INFORMATION TECHNICAL DATA SPECIFICATIONS Maximum Inlet Pressure 145 PSI 1000 kPa 10 bar Temperature Range 14 F 284 F 10 C to 140 C Typical Motor Noise Level 60 80 dB A MATERIALS Product Wetted Steel Parts AISI 316L Product Wetted Seals EPDM standard Alternative Seals BUNA N SFY Fluoroelastomer PTFE Encapsulated Fluoroelastomer Finish Polished Standard SHAFT SEALS Seals Type Single External or Single Double Flushed Maximum Water Pressur
12. CLSM 98a Tri Flo CL Series Centrifugal Pumps Service amp Installation Manual 8 Tri Clover 4 CONTENTS Thank you for purchasing a Tri Clover Product This manual contains disassembly and assembly instructions maintenance procedures troubleshooting and a complete parts list for all CL Series Centrifugal Pumps designed and manufactured by Tri Clover Inc Kenosha Wisconsin READ THIS MANUAL carefully to learn how to service these pumps Failure to do so could result in personal injury or equipment damage SAFETY DO S AND DON TS IMPORTANT SAFETY INFORMATION TECHNICAL INFORMATION TECHNICAL DATA INSTALLATION UNPACKING EQUIPMENT INSTALLATION OPERATIONAL CHECK MAINTENANCE CLEANING AND REPAIR MAINTENANCE DISASSEMBLY INSPECTION ASSEMBLY TROUBLESHOOTING TROUBLESHOOTING PARTS LIST ORDERING INFORMATION EXPLODED VIEW CROSS SECTIONAL VIEW CL PUMP REPLACEMENT PARTS CL PUMP REPLACEMENT PARTS CL PUMP REPLACEMENT PARTS CL PUMP REPLACEMENT PARTS SEAL REPLACEMENT PARTS TYPE DG EXTERNAL BALANCED SEAL SEAL REPLACEMENT PARTS TYPE FG WATER COOLED SINGLE SEAL SEAL REPLACEMENT PARTS TYPE EG WATER COOLED BALANCED DOUBLE SEAL SEAL REPLACEMENT PARTS JOHN CRANE DOUBLE 8 SEAL DO S AND DON TS DO read and understand these instructions before installing or using the pump DO NOT modify the pump Modifying the pump creates unsafe conditions and voids all warranties DO use Tri Clover spa
13. N Cover O ring EPDM Cover O ring SFY Fluoroelastomer 9 12 Seal Parts 13 Nut Casing Adapter 14 Washer Casing Adapter 15 28 Seal Parts oo 0 0 J A wn Ul un ds PARTS cus 9612 7091 15 9612 7091 04 9612 7091 01 9612 7038 50 9612 7038 02 9612 7101 15 9612 7101 04 9612 7101 01 9612 7070 02 9612 7301 01 9612 7301 02 9612 7301 03 9612 7308 01 9612 7304 01 751560 751543 751519 9612 7093 15 9612 7093 04 9612 7093 01 9612 7039 50 9612 7039 02 9612 7103 15 9612 7101 04 9612 7101 01 9612 7070 02 9612 7301 01 9612 7301 02 9612 7301 03 9612 7308 01 9612 7304 01 751561 751556 751529 9612 7095 15 9612 7095 04 9612 7095 01 9612 7045 50 9612 7045 02 9612 7105 15 9612 7101 04 9612 7101 01 9612 7070 02 9612 7301 01 9612 7301 02 9612 7301 03 9612 7309 01 9612 7305 01 751563 751558 751536 9612 7094 15 9612 7094 04 9612 7094 01 9612 7044 50 9612 7044 02 9612 7104 15 9612 7101 04 9612 7101 01 9612 7070 02 9612 7301 01 9612 7301 02 9612 7301 03 9612 7309 01 9612 7305 01 751563 751558 751536 Part Number 9612 7096 15 9612 7096 04 9612 7096 01 9612 7040 50 9612 7040 02 9612 7106 15 9612 7101 04 9612 7101 01 9612 7070 02 9612 7301 01 9612 7301 02 9612 7301 03 9612 7309 01 9612 7305 01 751578 751559 751542 Refer to Seal Replacement Parts later in this manual 9612 7306 01 9612 7307 01 9612 7306 01 9612 7307 01 9612 7306 01 9612 7307 01 9612 7306 01 9612 73
14. Tri Clover Inc s maximum liability for claims arising hereunder or for negligence for any andalllosses and damages resulting from any cause shall be either the repair or replacement of defective items or at Tri Clover Inc s option the refund ofthe purchase price for such items In no event including in the case of a claim for negligence shall Tri Clover be liable for incidental or consequential damages including loss of prof its Noperson including any representative employee or agent of Tri Clover is authorized to assume on behalf of Tri Clover Inc any liability or responsibility in addition to or different from that described inthis provision Any and all representations promises warranties orstatements that are in addition to or different from the terms of this provision are of no force or effect Distribution Centers in Union City California and Memphis Tennessee CLSM 98 5M Printed in March 1998 NN AV Net b y H KUTI TA Y LLL NIN Ly ox AU PL I Ls zzare Z K VTI CZ Nt X P ee f N A Bt W f std AM one NNN md TI p S TYPE DG EXTERNAL BALANCED SEAL 7 E Required on 1 and 2 NS 14 horsepower En motors only DDO 7 6 19 OE
15. d view and parts key facilitate ordering repair parts from Tri Clover All parts for the CL pump are keyed to the parts list KEY DESCRIPTION OTY Casing 1 Impeller 1 Cover 1 Impeller Screw 1 O ring 1 20r3 Wingnut 6 or 8 Stud Casing Cover 6 or 8 Cover O ring Screw Seal Gland Seal Gland Gasket Stationary Seal Nut Casing Adapter Washer Casing Adapter Rotating Seal Spring Drive Collar Drive Collar Stainless Steel Pin Drive Collar O ring Stuffing Box Single Flush Lip Seal Stuffing Box Type FG Screw Stuffing Box Flush Pipe ON OORA O N ND N a a n O ring requirements Impeller 1 o ring CL4311 6410 use key 49 1 o ring Type DG Seal 1 o ring Type FG Seal 2 o rings Type EG Seal 2 o rings EG Seal requires two Rotating Seals CL4311 and CL6410 require 8 wing nuts and studs CL4311 and CL6410 require 4 nuts and 4 washers CL4311 and CL6410 do not require a washer for the seal gland KEY 25 26 27 28 29 30 31 32 33 34 35 36 DESCRIPTION Spacing Ring Stationary Seal Rear O ring Stationary Seal Stuffing Box Type EG Adapter Screw Motor Washer Motor Seal Guard Screw Seal Guard Stub Shaft Compression Ring Threaded Compression Ring Screw Compression Ring Washer Compression Ring Seal Gland Pin Stub Shaft Retaining Ring Stub Shaft Leg Bracket Screw Leg Bracket Washer Leg Bracket Set Screw Adjustable Leg Adjustable Leg Mo
16. e single flushed seal Maximum 14 PSI 1 bar of water Water Consumption flushed seal 2 4 GPM 0 13 to 0 25 liter second Stationary Seal Ring Material AISI 316L with Silicon Carbide sealing surface Rotating Seal Ring Material Carbon standard or Silicon Carbide O ring Material EPDM standard O ring Alternate Material BUNA N Fluoroelastomer PTFE Encapsulated Fluoroelastomer MOTOR INFORMATION Uses standard NEMA C flange lock bearing close coupled motors Options include drip proof explosion proof energy efficient chemical casings and IEC B5 flange motors CL4311 pumps with frame size 320 and larger use motors with special Duplex thrust bearings which ensure longer bearing life Voltage and Frequency 3 phase 50Hz 220 380 VAC 1500 3000 RPM 3 phase 60Hz 208 230 460 VAC 1800 3600 RPM 3 phase 60Hz 575 VAC 1800 3600 RPM Available Motor Sizes 60 Hz 1 1 5 2 3 5 7 5 10 15 20 25 30 40 50 60 75 100 Horsepower 50 Hz 75 1 1 2 2 3 4 5 5 7 5 11 15 18 5 22 30 37 45 55 75 9 Kilowatts INSTALLATION UNPACKING EQUIPMENT The following items are included with the pump Delivery Notes Pump Service Instruction Manual Motor Service Instruction Manual Test Certificate certifying the performance of the pump if pump is supplied with a motor from Tri Clover Remove all packing materials from the pump and motor Dni L Check the suction inlet and discharge outle
17. e pumping process For example when pumping viscous fluids increase the flow of cleaning solution Always rinse the ump as well as the suction inlet and discharge outlet lines well with clean fresh water after performing CIP MAINTENANCE DISASSEMBLY REMOVING PUMP PARTS ADANGER High voltage Only an authorized electrician should disconnect the pump A WARNING Relieve pressure and remove all fluid from pump prior to disassembly Remove seal guard 32 by removing screw 33 Remove wingnuts 6 securing cover 3 to casing 1 Remove front cover 3 Use the two slots in casing 1 and a screwdriver to pry cover off Remove impeller screw 4 from stub shaft Unscrew impeller 2 from stub shaft Remove o ring 5 on impeller 2 and o ring 8 on cover as required MAINTENANCE If disassembling pump with stuffing box and flushing pipes remove as follows Remove flushing pipes 24 from stuffing box 22 or 28 Remove casing 1 by removing nuts 13 and washers 14 Remove stuffing box 22 or 28 from casing by removing two screws 23 securing stuffing box to casing STATIONARY SEAL DISASSEMBLY Disassemble casing as follows 9 m 38 e 1 Remove seal gland 10 on back of casing by removing allen screws 9 and washers 38 2 Remove rear gasket 11 stationary seal 12 and front gasket 11 as required NOTE A rear elastome
18. eals Screw impeller 2 to stub shaft SETTING IMPELLER CLEARANCES WITHOUT SEALS Set clearance to 0 025 0 027 0 4mm 0 46mm CL4311 and CL6410 Set clearance to 0 040 to 0 043 1mm to 1 1mm 1 Using a feeler gauge set the clearance between impeller back and casing to 0 025 0 027 0 6mm 0 7mm CL4311 and CL6410 Set clearance to 0 040 to 0 043 1mm to 1 1mm MAINTENANCE Remove impeller Remove casing 1 by removing nuts 13 and washers 14 Torgue hex head screws 37 securing the compression ring and threaded compression ring to 132 Ib in or 11 Ib ft 15 Nm Note that hex head screws are metric wrench size is 10mm Torque 6 compression ring screws to 132 Ib in or 11 Ib ft 15Nm Screws are metric Wrench size is 10mm ROTATING SEALS AND PUMP CASING ASSEMBLY Type DG External Balanced Seal CI4311 and CI6410 only If assembling DG type seals install o ring 5 into rotating seal 15 Then assemble the rotating seal 15 and spring 16 onto the drive collar 17 For the CL4311 or CL6410 pump insert the pin 19 into the drive collar and install the o ring 5 into the rotating seal 15 Then assemble the rotating seal 15 and spring 16 onto the drive collar 18 Place the assembled seal on the stub shaft The drive collar notch must align with the pin on the stub shaft vl Notch in Cup T gt Drive Collar Pin Ensure the drive collar p
19. eated correctly Slide casing 1 with the assembled seals over installation tool and onto the stub shaft Remove seal installation tool 50 Install casing 1 to pump adapter with nuts 13 and washers 14 Tighten nuts and washers Screw impeller 2 to stub shaft Install o ring 5 in impeller Install impeller screw 4 on stub shaft Torque impeller screw to 180 Ib in or 15 Ib ft 21 Nm For the CL4311 and the CL6410 torque the impeller screw to 30 Ib ft 41 Nm Install flushing pipes 24 to stuffing box MAINTENANCE Type EG Water Cooled Balanced Double Seal 23 Torgue screw to 72 Ib in 8 Nm For the CL4311 and 6410 torgue screws to 60 Ib in 7 Nm Install front gasket 11 stationary seal 12 rear gasket 11 and seal gland 10 into casing 1 using Allen screws 9 and washers 38 Torque screw 9 to 72 Ib in 8 Nm For CL4311 and CL6410 torque screw to 60 Ib in 7 Nm A rear elastomer gasket is required when using a front PTFE gasket Install o ring 27 onto rear stationary seal 26 and place stationary seal o ring first into bottom of the stuffing box 28 Ensure that the rear stationary seal is seated properly in the stuffing box by pressing down evenly on the seal until it is flush with the inside of the stuffing box Lubricate the stuffing box o ring 20 and place it around the outside edge of the stuffing box 28 4 Install the o rings 5 into the two rotat
20. eplacement Parts later in this manual 9612 7205 02 189797 189569 9612 7171 01 9612 7315 01 9612 7089 02 9612 7037 06 9612 7036 06 9612 7314 03 9612 7317 01 9612 7311 01 Click here to Order Parts SEAL REPLACEMENT PARTS Type DG External Balanced Seal 19 FS 014311 and Cl6410 only N Description O Ring Buna N O Ring EPDM O Ring SFY Fluoroelastomer Screw Seal Gland Seal Gland Front amp Rear Stationary Seal Gaskets Buna N Front amp Rear Stationary Seal Gaskets EPDM Front amp Rear Stationary Seal Gaskets SFY Front Gasket Stationary Seal PTFE Silicon Carbide Stationary Seal Rotating Seal Carbon includes cup Rotating Seal SIC includes cup Spring Drive Collar Drive Collar Stainless Steel Pin Drive Collar Washer Compression Ring CL2264 CL2265 CL2284 CL3285 CL3295 9612 7301 01 9612 7301 02 9612 7301 03 9612 7303 01 9612 7008 01 9612 7130 02 9612 7130 01 9612 7130 03 9612 7130 04 9612 7000 01 9612 7115 01 9612 7115 02 9612 7116 01 9612 7004 01 9612 7317 01 CL4359 CL4378 CL4387 CL4488 9612 7301 01 9612 7301 02 9612 7301 03 9612 7303 01 9612 7008 01 9612 7130 02 9612 7130 01 9612 7130 03 9612 7130 04 9612 7000 01 9612 7115 01 9612 7115 02 9612 7116 01 9612 7004 01 9612 7009 02 9612 7317 01 CL4311 Part Number 9612 7325 02 9612 7325 01 9612 7325 03 189643 9612 7184 01 9612 7321 02 9612 73
21. in enters the notch on the rotating seal cup when the spring is compressed MAINTENANCE Torque screw to 72 Ib in 8 Nm i fe N ie to 180 Ib in or 15 ft lb For the CL4311 and CL6410 ES I 4 For the CL4311 and CL6410 t torque screws to 60 Ib in 7 Nm v Og p to 30 mi d Nm iud Install front gasket 11 stationary seal 12 rear gasket 11 and seal gland 10 into casing 1 using allen screws 9 Torque the screw to 72 Ib in 8 Nm For the CL4311 and the CL6410 torque the screw to 60 Ib in 7 Nm NOTE A rear elastomer gasket is required when using a front PTFE gasket Install casing 1 to pump adapter with nuts 13 and washers 14 Tighten nuts and washers Screw impeller 2 to stub shaft Install o ring 5 in impeller Install impeller screw 4 on stub shaft Torque impeller screw to 180 Ib in or 15 Ib ft 21Nm For the CL4311 and CL6410 torque the impeller screw to 30 ft Ib 41Nm Type FG Water Cooled Single Seal p 2 913 OD press fitting tool 1 Usinga proper press fitting tool OD should be 2 913 install single flush lip seal 21 into stuffing box 22 with beaded edge up Make certain the lip seal is completely seated in the gland in the stuffing box Note Itis not necessary to use a press fitting tool to install the lip seal on the 4311 and 6410 pumps Install the lip seal beaded edge up making certain the seal is completely seated in the gland in the stuffing box 2 Install o
22. ing seals 15 Note Do not lubricate these o rings with silicone spray This will cause the seal to slip and rotate independently on the shaft Instead use soapy water or some other temporary lubricant suitable to your application This will allow the o rings to slide easily over the shaft without permanently lubricating them Install spring 16 onto the seal cup with seal attached 15 Then place seal face down and spring up onto the stationary seal 12 Insert the spacing ring 25 inside the spring 16 Make certain spacing ring is seated flat against o ring MAINTENANCE Torque screw to 180 Ib in or 15 ft Ib 21 Nm For Cl4311 and Cl6410 torque screw to 30 Ib ft 7 Install the other seal cup with seal attached 15 on the spring 8 Place the stuffing box 28 over rotating seal assembly and secure it to the casing using the two screws 23 Note With the stuffing box secured reach inside the opening and ensure that the rotating seal assembly is centered in the stuffing box If not move the seal until it is centered with the stuffring box opening Slide the Seal Installation Tool 50 over the stub shaft tapered end out until it abuts with the shoulder of the stub shaft This tool prevents the rear stationary seal face from jarring against the stub shaft during installation and removal Slide casing 1 with assembled seals over the installation tool 50 and onto the stub shaft and secure it with nut
23. ingnuts Install seal guard 32 using screw 33 FINAL ASSEMBLY Install O ring 8 onto cover 3 1 2 3 TROUBLESHOOTING TROUBLESHOOTING The troubleshooting chart applies to problems which may arise during pump operation The chart assumes that the pump is correctly installed and is the correct size for the application Contact Tri Clover if assistance is required Refer to the motor manufacturer s operating and maintenance manual for motor troubleshooting information PROBLEM Motor and pump do not run Pump not discharging Pump is rotating in the wrong direction Pump is not discharging at rated capacity PROBABLE CAUSE No power at power panel Motor connections incorrect loose Obstruction in discharge piping Closed throttle or check valve Motor wired backwards Motor wired incorrectly Bentimpeller Throttle or check valve partially closed Obstruction in discharge piping Pump cavitation Impeller clearance incorrect Solid particles in pump REMEDY Ensure power is available at power source Check power leads to motor Remove obstruction Ensure all valves are open Verify motor is wired according to manufacturer s instructions Verify motor is wired according to manufacturer s instructions Remove cover and check impeller against a known straightedge Ensure all valves are f
24. pump A WARNING Do not operate the pump without the seal guard in place Before starting bump the motor to check if the motor fan is rotating Motor Back clockwise when seen from the motor back If the motor fan cannot be seen look through the seal guard to view the stub shaft Bump means to momentarily apply power to the motor and then immediately remove power Fan Rotation Check the following Flow direction is correct Suction inlet and discharge outlet lines are hooked up correctly e All connections are tightened When practical an eccentric tapered reducer should be used to prevent air pockets from forming in the lines or in the pump Pay attention to circumstances that could lead to pump cavitation Low pressure in the suction line due to line restrictions Air in the suction inlet line Temperature of the fluid being pumped is too high Pump is oversized for the fluid being pumped Ensure that there is a sufficient supply of fluid to be pumped Check the motor for vibration unusual noises or any other abnormalties Eccentric Tapered Heducer MAINTENANCE CLEANING AND REPAIR A WARNING Do Not touch the pump when running the Clean In Place procedure If the pump is installed in a processing piping system designed for Clean In Place CIP pump disassembly is no
25. r gasket is required when using a front PTFE gasket MAINTENANCE ROTATING SEALS DISASSEMBLY 1 Remove and disassemble seals according to the appropriate configuration shown and described Type DG External Balanced Seal Remove the rotating seal 15 o ring 5 spring 16 and drive collar 17 from stub shaft CL4311 and CL6410 Remove 15 5 16 and 18 from the stub shaft Remove pin 19 as needed Type FG Water Cooled Single Seal Remove rotating seal 15 o ring 5 spring 16 and stainless steel drive collar 18 from stub shaft Remove pin 19 from stainless steel drive collar as required Remove o ring 5 from stainless steel drive collar Remove o ring 20 from stuffing box 22 Remove single flush lip seal 21 from stuffing box 22 MAINTENANCE Type EG Water Cooled Balanced Double Seal 1 Remove front rotating seal 15 o ring 5 spacing ring 25 spring 16 o ring 5 and rear rotating seal 15 from stub shaft 2 Remove rear stationary seal 26 o ring 27 and o ring 20 from stuffing box 28 John Crane Double 8 seal Remove John Crane seal 48 from the from the stub shaft Remove rear stationary seal 26 o ring 27 and o ring 20 from stuffing box 47 MAINTENANCE PUMP PARTS DISASSEMBLY After the seals are removed and disassembled remove the following Screws are metric Wrench size is 10mm Remove pump adapter 29 from motor by removing hex head cap
26. re parts when replacing a component of the pump DO NOT place the pump in an application where the service ratings are exceeded DO NOT service the pump while it is running SAFETY PRECAUTIONS WHEN INSTALLING PUMP DO use an authorized electrician when connecting the pump DO observe the mechanical limits of the pump refer to the pump performance sheet DO NOT lift the Motor and Pump by the pump casing or wingnuts If itis necessary to regulate flow out of the pump DO install a throttling valve in the discharge outlet line DO NOT install a throttling valve in the suction inlet line SAFETY PRECAUTIONS WHEN OPERATING PUMP DO NOT touch the pump or the lines when pumping hot fluids or when performing Clean In Place CIP procedures DO NOT run the pump with BOTH the suction inlet and discharge outlet blocked Running the pump with the inlet blocked will cause serious damage to the pump DO NOT check pump rotation with liquid in the pump DO NOT run the pump with the impeller rotating in the wrong direction Rotating the impeller in the wrong direction may cause damage to the pump DO NOT operate the pump without the seal guard in place SAFETY PRECAUTIONS WHEN SERVICING PUMP DO ensure the pump is cool to touch before performing service DO relieve all pressure and drain all fluids from pump and connected piping before performing service DO ENSURE POWER TO THE UNIT HAS BEEN UNPLUGGED PRIOR TO PERFORMING ANY PUMP MAINTENANCE OR
27. ring 20 into stuffing box 22 MAINTENANCE Torque screws to 72 Ib in 8 Nm For the CL4311 and 6410 torque screws to 60 Ib in 7 Nm Install front gasket 11 stationary seal 12 rear gasket 11 and seal gland 10 into casing 1 using Allen screws 9 and washers 38 Torque the screws to 72 Ib in 8 Nm For the CL4311 and the CL6410 torque the screws to 60 Ib in 7 Nm NOTE A rear elastomer gasket is required when using a front PTFE gasket Install two screws 23 securing stuffing box 22 to casing Install pin 19 into stainless steel drive collar 18 as required 6 Install o ring 5 into stainless steel drive collar 18 8 Install spring 16 onto rotating seal 15 and onto stainless steel drive collar 18 7 Install o ring 5 into rotating seal 15 MAINTENANCE Notch in Cap Drive Collar Pin Install the stainless steel drive collar 18 with the spring 16 and rotating seal 15 onto the stub shaft Ensure the drive collar pin enters the notch on the rotating seal cup when the spring is compressed Torque screw to 180 Ib in or 15 ft Ib 21Nm ssi On CL4311 and Cl6410 30 Ib ft 41Nm Slide the seal installation tool 50 over the stub shaft tapered end out until it abuts with the shoulder of the stub shaft This tool can also be used for disassembly to protect the seals Check to make certain lip seal is still s
28. s 13 and washers 14 Remove the Seal Installation Tool 50 Before installing the impeller inspect the o ring 5 on the forward stationary seal to see that it did not slide out of place during installation Rotate the rotating seal assembly to ensure that it rotates with the stub shaft Note You can see the rotating seal assembly rotate by looking down the slot in the adapter into the holes for the flush pipes 13 Lubricate the hub of the impeller 2 with soapy water or some other temporary lubricant and screw it onto the stub shaft Prevent the stub shaft from turning by wedging a screwdriver between the stub shaft and the screws on the compression rings When screwing the impeller in you ll feel some resistance from the o ring but keep turning until you can feel the hub contact the shoulder of the stub shaft MAINTENANCE 14 Install o ring 5 in impeller 15 Install impeller screw 4 on stub shaft Torque impeller screw to 180 Ib in or 15 Ib ft 21 Nm For the CL4311 and CL6410 torque the impeller screw to 30 Ib ft 41 Nm 16 Install flushing pipes 24 to stuffing box At this point you may want to run water through the flushing pipes at normal pressure to ensure that the seals don t leak Leakage may indicate damage to the stationary seal or incorrect rotating seal installation John Crane Double 8 Seal Install front gasket 11 stationary seal 12 rear gasket 11 and seal gland 10
29. shop practice LEG AND BRACKET ASSEMBLY Assemble frame parts in reverse order of disassembly See page 14 PUMP PARTS ASSEMBLY 1 Assemble compression ring 36 retaining ring 40 used on 1 5 and 2 HP motors only and threaded compression ring 35 onto stub shaft 34 Place hex head screws 37 and washers 38 in compression ring Start but do not tighten screws Place pin 39 in stub shaft as reguired Pin is not used with the Type EG and John Crane Double 8 Seal km Rotating Seal Surface HI 3 8 to 3 4 MAINTENANCE Place stub shaft with parts assembled on motor shaft Stub shaft should be placed so after the pump adapter is installed the distance between the end of the stub shaft and the motor flange on the pump adapter is between 3 s and 3 4 Tighten hex head cap screws evenly but not more than to allow the stub shaft to be moved by gently tapping with a rubber or plastic tipped mallet This will allow for possible adjustment during setting of impeller clearance Assemble pump adapter 29 to motor with hex head cap screws 30 and washers 31 Tighten hex head cap screws until tight Assemble casing 1 to pump adapter with nuts 13 and washers 14 Do not assemble stationary seal components into casing These parts should be assembled into casing after the impeller clearance has been adjusted Perform impeller clearance adjustment without seals to prevent any damage to the s
30. sions Notice of Claims and Limitation of Liability Prices and allterms and conditions of sale are establishedin current price sheets and are subject to change without notice All orders are subject to acceptance by Tri Clover Inc atits Kenosha Wisconsin or Distribution Center offices only No assignment of the purchaser s rights may be made without consent of Tri Clover Inc Each Tri Cloveritemis warrantedto be free from manufactur ing defects for a period of one 1 year from the date of shipment providing it has been used as recommended and in accordance with recognized piping practice and providing it has notbeen worn out due to severe service such as encountered under extremely corrosive or abrasive conditions This warranty is expressly in lieu of any other warran ties express or implied including but not limited to any implied warranty of merchantability or fitness for a particular purpose All claims must be in writing and must be mailed or delivered by purchaser within thirty 30 days after purchaser learns of the facts upon which such claim is based Any claim not made in Se Tri Clover Tri Clover Inc 9201 Wilmot Road Kenosha Wisconsin 53141 1413 PHONE 1 800 242 4000 1 414 694 5511 FAX 414 694 7104 E Mail address TO WEBMASTER alfalaval com Visit our web site at www tri clover com writing and within the time period specified above shall be deemed waived Purchaser s sole and exclusive remedy and
31. t for any pieces of packing Inspect the pump motor and motor mounting frame for signs of damage Check all nuts bolts and set screws and retighten as necessary Report any damage to the carrier Carefully lift the motor and pump CH DO NOT lift motor and pump by the pump INSTALLATION INSTALLATION A WARNING Only authorized electricians should connect the pump Ensure sufficient clearance around Mounting surface should be flat and the motor and pump level Legs are adjustable Legs are not available on NEMA 300 IEC200 frames and above I a Allow sufficient access for inspection and cleaning Piping should be supported to avoid strain on pump casing and front cover Pump is designed for either vertical or horizontal discharge A Pump should be located as near as o possible to the source being pumped If pump is horizontal mounting the discharge outlet on top is preferred INSTALLATION OPERATIONAL CHECK A WARNING Never run the pump with both the suction side and the pressure side blocked This will cause serious damage to the pump A WARNING Always check rotation without liquid in the
32. t reguired A recommended CIP procedure is included in these instructions If CIP is not available disassemble the pump according to the disassembly instructions provided Once disassembled clean pump parts in an approved cleaning solution s During disassembly and cleaning inspect all parts for serviceabilty Replace all parts which show signs of wear to prevenrt pump failure Discard all replaced parts in accordance with local state or federal regulations The following instructions are for complete pump disassembly and assembly Use these instructions as a gude when partial disassembly or assembly is reguired Disassembly assembly of the pump for repair is identical to disassembly assembly of the pump for cleaning Removal of the pump adapter may not be required RECOMMENDED CLEAN IN PLACE PROCEDURE rr A WARNING Lye and nitric acid are poisonous and can cause burns to skin Mixing Cleaning Solution Only use clean fresh water to mix nitric acid HNO or caustic soda NaOH Examples 1 caustic soda by weight at 150 F 70 C 2 5 lbs 1 kg caustic soda 30 gal 100 1 water cleaning solution 1 gal 3 81 I 33 caustic soda and water 45 gal 170 I water cleaning solution 0 5 nitric acid by weight at 150 F 70 C 0 2 gal 0 751 1 53 nitric acid and water 28 gal 105 water cleaning solution Avoid excessive amounts of cleaning solution Adjust the solution flow to th
33. tationary Seal Stuffing Box Type EG Adapter Screw Motor Washer Motor Seal Guard Screw Seal Guard Stub Shaft Compression Ring Threaded Compression Ring Screw Compression Ring Washer Compression Ring Seal Gland Pin Stub Shaft Retaining Ring Stub Shaft Leg Bracket Screw Leg Bracket Washer Leg Bracket Set Screw Adjustable Leg Adjustable Leg Motor Stuffing Box John Crane John Crane Double 8 Seal A a AR A A A ND HH HR DD a HR R ak HS da n CL4311 pumps with frame size 320 and larger use motors with special Duplex thrust bearings Contact your local Tri Clover distributor or Tri Clover for more information Type FG Seal 2 o rings Type EG Seal 2 o rings EG Seal requires two Rotating Seals CL4311 and CL6410 require 8 wing nuts and studs Required on 1 2 and 2 horsepower motors CL4311 and CL6410 require 4 nuts and 4 washers only CL4311 and CL6410 do not require a washer for the seal gland oee back page for cross sectional drawing Click here to Order Parts CL PUMP REPLACEMENT Casing Tri Clamp Industrial Casing Tri Clamp Sanitary Casing Tri Clamp Sanitary Plus Impeller Full Size Industrial Impeller Full Size Sanitary San Plus Cover Tri Clamp Industrial Cover Tri Clamp Sanitary Cover Tri Clamp Sanitary Plus Impeller Screw O ring Buna N O ring EPDM O ring SFY Fluoroelastomer Wingnut Stud Casing Cover Cover O ring Buna
34. tomer Screw Seal Gland Seal Gland Front amp Rear Stationary Seal Gaskets Buna N Front amp Rear Stationary Seal Gaskets EPDM Front amp Rear Stationary Seal Gaskets SFY Front Gasket Stationary Seal PTFE Silicone Carbide Stationary Seal Carbon Rotating Seal includes cup Buna N and EPDM Silicone Carbide Rotating Seal includes cup Buna N SiC and EPDM SiC Spring O ring Stuffing Box Buna O ring Stuffing Box EPDM O ring Stuffing Box SFY Screw Stuffing Box Flush Pipe Spacing Ring Stationary Seal Rear SiC Stationary Seal Rear Stainless Steel O Ring Stationary Seal Buna O Ring Stationary Seal EPDM O Ring Stationary Seal SFY fluoroelastomer Stuffing Box Washer Compression Ring Seal Installation Tool Included in seal kits Part Number 9612 7301 01 9612 7301 02 9612 7301 03 9612 7303 01 9612 7008 01 9612 7130 02 9612 7130 01 9612 7130 03 9612 7130 04 9612 7000 01 9612 7115 01 9612 7115 02 9612 7116 01 9612 7300 01 9612 7300 02 9612 7300 03 9612 7302 01 9612 7129 01 9612 7006 01 9612 7113 01 9612 7113 02 9612 7316 02 9612 7316 01 9612 7316 03 9612 7111 01 9612 7317 01 9612 7320 02 Buna N kit number 9612 7118 05 BunaN SiC kit number 9612 7119 05 EPDM kit number 9612 7118 04 EPDM SiC kit number 9612 7119 04 SFY Fluoroelastomer kit number 9612 7118 06 SFY Fluoroelastomer SiC kit number 9612 7119 06 Consult Tri Clover for a model CL4311 or CL64
35. tor Stuffing Box John Crane John Crane Double 8 Seal 1 1 1 1 1 4 4 1 1 1 1 1 6 6 4 1 1 2 4 4 4 4 1 1 1 CL4311 pumps with frame size 320 and larger use motors with special Duplex thrust bearings Contact your local Tri Clover distributor or Tri Clover for more information Required on 1 2 and 2 horsepower motors only EXPLODED VIEW FOR ALL CL SERIES PUMPS 42 14 A us 46 SE IN fd SM m e a Is S PEN lt gt ME y ABER X ally a ENI Sey 9 MR sy SY US ZZ ku SN pra Sgt 4 LG Pu 35 s 34 3 A SI 47 Y 44 1 See Seal Types E M Below hai 1 TYPE DG EXTERNAL BALANCED SEAL 19 18 S Cl4311 and a CI6410 only TYPE EG WATER COOLED BALANCED DOUBLE SEAL 29 mr PARTS LIST CROSS SECTIONAL VIEW ce 34 O 0 Db O N DESCRIPTION Casing Impeller Cover Impeller Screw O ring Wingnut Stud Casing Cover Cover O ring Screw Seal Gland Seal Gland Gasket Stationary Seal Nut Casing Adapter Washer Casing Adapter Rotating Seal Spring Drive Collar Drive Collar Stainless Steel Pin Drive Collar O ring Stuffing Box Single Flush Lip Seal Stuffing Box Type FG Screw Stuffing Box Flush Pipe O ring requirements Impeller 1 o ring CL4311 6410 use key 49 1 o ring Type DG Seal 1 o ring 1 1 1 1 1 20r3 60r8 60r8 4 4 4 4 4 4 2 2 DESCRIPTION Spacing Ring Stationary Seal Rear O ring S
36. ully open Ensure no obstruction in discharge piping exists See cavitation causes in the INSTALLATION section of these instructions Check impeller clearance Remove cover and check for particles in the pump PROBLEM 5 Pump is noisy 6 Fluid leaks at sealing surfaces PROBABLE CAUSE Bent impeller Motor is rotating in the wrong direction Impeller clearance is not within tolerance Pump cavitation Solid particles in pump Worn seals or damaged o rings Not enough compression on rotating seal TROUBLESHOOTING REMEDY Remove cover and check impeller against a known straightedge Verify motor is wired according to manufacturer s instructions Remove casing and verify clearance between impeller rear and casing is correct See cavitation causes in the INSTALLATION section of these instructions Remove cover and check for particles in the pump Disassemble pump according to the DISASSEMBLY sequence in these instructions Replace all worn seals or damaged o rings Disassemble pump according to the DISASSEMBLY sequence in these instructions Replace spring PARTS LIST ORDERING INFORMATION All orders for repair parts must contain the following 1 Complete model number located on nameplate 2 Pump serial number located on nameplate 3 Description and part key number from the parts list The explode
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