2 - Pentair Water Literature
Contents
1. 410115 141410115 141410115 Stator 412031 410031 410031 SAM and SAMRC 6 Pole 1150 RPM Description Connection Box 3 amp 5MP 200 3 1150 071380015 230 3 1150 071380005 3 amp 5HP 460 3 1150 071380005 416031 3 amp 5HP 575 3 1150 071380015 Rotor Shaft Ass y 141390115 141390115 141390115 141390115 Stator 142972031 142970031 SAP H3H and HAH 1750 RPM Description Connection Box 5 HP 200 1 1750 071380015 5 HP 230 1 1750 071380015 142970031 5 amp 7 5 HP 200 3 1750 071380015 142976031 5 amp 7 5 HP 230 3 1750 071380005 432031 5 amp 7 5 HP 460 3 1750 071380005 430031 5 amp 7 5 HP 575 3 1750 071380015 141430031 7 5 HP 230 1 1750 071380015 141436031 10 HP 200 3 1750 071380015 Rotor Shaft Ass y 141420145 141420145 141390155 141390155 141390155 141390155 141440155 141410155 Al Stator Description Connection Box 141422011 10 HP 230 3 1750 071380005 141420011 10 HP 460 3 1750 071380005 141402031 10 HP 575 3 1750 071380015 141400031 15 HP 200 3 1750 071380015 141400031 15 HP 230 3 1750 071380005 141406031 15 HP 460 3 1750 071380005 141440011 15 HP 575 3 1750 071380015 A3 SAHRC 3450 RPM Rotor Shaft Ass y Stator Descrip2. STATOR W CONN BOX VARIES 5 001780041 SCREW HHC 4 20 191014021 SCREW HHC 3 8 16UNCx 1 1 2 2 39 008530001 CONNECTOR VARIES 6 009750171 RING RETAINING 21 06000021 WIRE W TERMINAL 3 024940001 CONNECTOR WIRE VARIES 7 070720002 HOUSING SEAL 22 070740003 RING RETAINING 1 151760007 LIFTING BAIL 1 8 00975003 RING RETAIN EXT 1 23 009200011 SEAL UPPER CARBON CERAMIC 1 9 00150029 O RING 1 8 x 3 359 ID 2 237 1 24 081000005 SEAL LOWER CARBON CERAMIC 1 10 00150024 O RING 1 8 x 8 984 ID 22 270 2 25 002390251 m he 3UNCx 3 1 2 4 14299002 KEY 1 8 SQ VARIES 12 070700002 HOUSING BEARING 1 191034062 ae 4 Motor Parts List S4M and S4MRC 4 Pole 1750 RPM Description Connection Box 5 HP 230 1 1750 380015 5 7 5 HP 200 3 1750 380015 5 7 5 HP 230 3 1750 380005 5 7 5 HP 460 3 1750 380005 5 7 5 HP 575 3 1750 380015 7 5 HP 230 1 1750 380015 Rotor Shaft Ass y 420115 390115 390115 390115 390115 440115 Stator Description Connection Box 420011 10 HP 200 3 1750 380015 402031 10 HP 230 3 1750 380005 400031 10 HP 460 3 1750 380005 400031 10 HP 575 3 1750 380015 406031 15 HP 200 3 1750 380015 440011 15 HP 230 3 1750 380005 15 HP 460 3 1750 071380005 15 HP 575 3 1750 071380015 Rotor Shaft Ass y 410115 410115 410115 410115 410115
3. back of holes pry plates loose This will force out lower seal if not already removed Remove snap ring that holds upper seal Pull seal if it is free If not free it can be forced off when shaft is removed Remove 4 bolts that hold bearing housing in place Set assembly in upright position and bump end of shaft on hardwood block This will push the bearing from the housing and will force upper seal from shaft Use bearing puller to remove bearings Replace with new bearings Press only on inner face of bearing when replacing Pressing on outer face can damage the bearing 11 12 13 IMPORTANT DO NOT USE ANY OF THE OLD SEAL PARTS REPLACE WITH ALL NEW SEALS Thoroughly clean all castings before replacing seals One grain of dirt between the seal faces can cause failure Examine all O rings for nicks before using Use Locktite on socket head locking screw in end of shaft Pump Troubleshooting Below is a list of common problems and the probable causes Pump will not start 1 No power to the motor Check for blown fuse or open circuit breaker Selector switch may be in the Off position Control circuit transformer fuse may be blown Overload heater on starter may be tripped Push to reset Pump will not start and overload heaters trip 1 Turn off power and check motor leads with Megger or ohmmeter for possible ground Check resistance of motor
4. defective in materials and workmanship Pentair Hydromatic reserves the right to change or improve its products or any portions thereof without being obligated to provide such a change or improvement for prior sold and or shipped units Start up reports and electrical schematics may be required to support warranty claims Submit at the time of start up through the Pentair Hydromatic website http forms pentairliterature com startupform startupform asp type h Warranty is effective only if Pentair Hydromatic authorized control panels are used All seal fail and heat sensing devices must be hooked up functional and monitored or this warranty will be void Pentair Hydromatic will cover only the lower seal and labor thereof for all dual seal pumps Under no circumstance will Pentair Hydromatic be responsible for the cost of field labor travel expenses rented equipment removal reinstallation costs or freight expenses to and from the factory or an authorized Pentair Hydromatic service facility This limited warranty will not apply to defects malfunctions resulting from failure to properly install operate or maintain the unit in accordance with the printed instructions provided b to failures resulting from abuse accident or negligence c to normal maintenance services and parts used in connection with such service d to units that are not installed in accordance with applicable local codes ordinances and good trade practices e if th
5. gt PENTAIR HYDROMATIC MODELS 54M 54 S4HRC and o4MRC SUBMERSIBLE SOLIDS HANDLING PUMPS INSTALLATION AND SERVICE MANUAL For use with product built with USEM motor 8 NOTE To the installer Please make sure you provide this manual to the owner of the equipment or to the responsible party who maintains the system Item E 03 486 Part 5625 486 1 2013 Pentair Ltd 11 06 13 General Information Attention This manual contains important information for the safe use of this product Read this manual completely before using this product and refer to it often for continued safe product use DO NOT THROW AWAY OR LOSE THIS MANUAL Keep it in a safe place so that you may refer to it often Reasonable care and safe methods should be practiced Check local codes and requirements before installation Unpacking Pump Remove pump from carton When unpacking unit check for concealed damage Claims for damage must be made at the receiving end through the delivery carrier Damage cannot be processed from the factory WARNING Before handling these pumps and controls always disconnect the power first Do not smoke or use sparkable electrical devices or flames in a septic gaseous or possible septic sump CALIFORNIA PROPOSITION 65 WARNING A WARNING This product and related accessories contain chemicals known to the State of California to cause cancer birth de
6. together only if sump level rises to the fourth control second override This control also brings on the third pump in case of failure of either or both of the first two pumps Alarm Controls The alarm level is usually set above the override level so the alarm will signal only if the override level is exceeded However some engineers prefer to have the alarm level set below the override level as it is possible for one pump to fail and the other pump to operate on the override level with the sump level never reaching the alarm level This is particularly true in cases of low inflow capacity Electrical Control Panel It is recommended that the Hydromatic control panel be used with all pumps as proper starter heaters and connections for heat sensor wires are furnished Hydromatic electrical equipment is installed in a weatherproof NEMA 3R enclosure The electrical equipment includes a main circuit breaker for each pump a magnetic starter with overload protection foreach pump H O A switch and run light for each pump and an electric alternator and a transformer to provide appropriate control for control circuit and alarms Overload Heater Starters with 3 leg overload protection must be supplied if the Hydromatic electrical panel is not used The heaters must be sized in accordance with the nameplate amps on the motor The amp draw on these submersible motors is slightly higher than a corresponding
7. 274 001500471 001500471 001500471 B2 SCREW CAP 005680021 005680021 029210041 005680021 005680021 005680021 WASHER IMPELLER SST 080230001 080230001 080230011 080230001 080230001 080230001 B4 VOLUTE 070680015 137210015 082120002 070800002 151470015 151470002 B5 SPACER 137720003 137720003 137720003 IMPELLER 070710152 6 88 137220112 7 50 082130082 4 69 070810082 6 75 151460072 8 25 151460072 8 25 070710132 7 56 137220082 8 25 082130042 5 00 070810022 8 00 151460032 9 25 151460032 9 25 070710052 8 00 137220042 9 25 082130052 5 69 070810012 8 50 151460002 10 00 151460002 10 00 070710012 9 00 137220012 10 00 070810132 8 69 E 070810002 9 00 10 THIS PAGE INTENTIONALLY LEFT BLANK STANDARD LIMITED WARRANTY Pentair Hydromatic warrants its products against defects in material and workmanship for a period of 12 months from the date of shipment from Pentair Hydromatic or 18 months from the manufacturing date whichever occurs first provided that such products are used in compliance with the requirements of the Pentair Hydromatic catalog and technical manuals for use in pumping raw sewage municipal wastewater or similar abrasive free noncorrosive liquids During the warranty period and subject to the conditions set forth Pentair Hydromatic at its discretion will repair or replace to the original user the parts that prove
8. AILURE CONNECTIONS 460V 8 2 BLACK W HEAT SENSORS L2 FOR ANY VOLTAGE MOTOR ELECTRODE HEAT SENSORS IN MOTOR WINDINGS SEAL FAILURE Pump Maintenance Lubrication or other maintenance is not required as the motors are oll filled Generally these pumps give very reliable service and can be expected to operate for many years without failure under normal operating conditions Lightning In some areas where considerable lightningoccurs itisrecommended that a lightning arrestor be installed at the control panel Lightning arrestors are good insurance against damage to an expensive motor Field Service on Motor All submersible motors out of warranty can be serviced in the field by any reliable motor service shop Any pump in warranty must be returned to the factory for service or repaired at an authorized Hydromatic service center Charges will not be allowed if in warranty pump is not taken to an authorized Hydromatic service center When field service is performed on a pump these instructions should be carefully followed Replacing Stator 1 If stator only is damaged it may not be necessary to completely dismantle pump as stator and housing can be lifted from pump without disturbing seals or bearings 2 To drain all oil from upper housing remove drain plug in bottom of stator housing and remove plug in top of housing to allow air to enter 3 After chamber is dra
9. AST 9TH STREET 490 PINEBUSH ROAD UNIT 4 ASHLAND OHIO USA 44805 CAMBRIDGE ONTARIO CANADA N1T 0A5 419 289 1144 800 363 PUMP WWW HYDROMATIC COM Warranty Rev 12 13
10. cond pump in the same manner 4 Now set both H O A switches to Auto position and allow water to rise in sump until one pump starts Allow pump to operate until the level drops to turn off point 5 Allow sump level to rise to start other pump Notice run lights on panel Pumps should alternate on each successive cycle of operation 6 Turn both H O A switches to Off position and allow sump to fill to the override control level 7 Turn both switches to Auto position and both pumps should start and operate together until level drops to turn off point 8 Repeat this operation cycle several times before leaving the job 9 Check voltage when pumps are operating and check the amp draw of each pump Check amps on each wire as sometimes a high leg will exist One leg can be somewhat higher 5 to 10 without causing trouble For excessive amp draw on one leg the power company should be consulted Phase Converters Phase converters are generally not recommended but in cases where only single phase current is available phase converters can be used Be sure to size the phase converter large enough for the amp draw specified on the motor nameplate not necessarily by motor horsepower The warranty on all three phase submersible motors is void if operated with single phase power through a phase converter and 3 leg ambient compensated extra quick trip overload protectors are not used HEAT SENSORS AND SEAL F
11. detect excessive heat The heat sensors are set to trip at 130 C The sensors automatically reset when motor cools to safe temperature The sensors are connected in series with the motor starter coil so that the starter is tripped if heat sensor opens The motor starter is equipped with overload heaters so all normal overloads are protected by the starter IMPORTANT If Hydromatic electrical starting equipment is not supplied the heat sensor circuit must be connected in series with the starter coil or warranty is void Sump Level Control Sump level is controlled by Hydromatic switch controls The float is held in position in the sump by a weight attached to the power cord above the float The cord supports the float and is adjusted for height from the surface Duplex systems three controls one set at turn off one set at turn on for one pump and one set for turn on for two pumps Pumps alternate operation on each successive cycle Two pumps operate together only if sump level rises to the third or override control The override control also brings on the second pump in case of failure of the first pump Extra floats with appropriate controls can be supplied for alarm functions Triplex systems use four controls one set at turn off one set at turn on for one pump one set at turn on for two pumps and one set at turn on for three pumps Pumps alternate each successive cycle Three pumps operate
12. e unit is moved from its original installation location f if unit is used for purposes other than for what it is designed and manufactured 41 to any unit that has been repaired or altered by anyone other than Pentair Hydromatic or authorized Pentair Hydromatic service provider h to any unit that has been repaired using non factory specified OEM parts Warranty Exclusions PENTAIR HYDROMATIC MAKES NO EXPRESS OR IMPLIED WARRANTIES THAT EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF PENTAIR HYDROMATIC SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSE Liability Limitation IN NO EVENT SHALL PENTAIR HYDROMATIC BE LIABLE OR RESPONSIBLE FOR CONSEQUENTIAL INCIDENTAL OR SPECIAL DAMAGES RESULTING FROM OR RELATED IN ANY MANNER TO ANY PENTAIR HYDROMATIC PRODUCT OR PARTS THEREOF PERSONAL INJURY AND OR PROPERTY DAMAGE MAY RESULT FROM IMPROPER INSTALLATION PENTAIR HYDROMATIC DISCLAIMS ALL LIABILITY INCLUDING LIABILITY UNDER THIS WARRANTY FOR IMPROPER INSTALLATION PENTAIR HYDROMATIC RECOMMENDS INSTALLATION BY PROFESSIONALS Some states do not permit some or all of the above warranty limitations or the exclusion or limitation of incidental or consequential damages and therefore such limitations may not apply to you No warranties or representations at any time made by any representatives of Pentair Hydromatic shall vary or expand the provision hereof gt PENTAIR HYDROMATIC 740 E
13. fects or other reproductive harm Pumps Not Operating or in Storage Pumps with carbon ceramic seals must have impellers manually rotated 6 revolutions after setting non operational for 3 months or longer and prior to electrical start up 2 Pumps with tungsten carbide seals must have impellers manually rotated 6 revolutions after setting non operational for 3 weeks or longer and prior to electrical start up Seal Failure An electrode is installed in the seal chamber so if any water enters the chamber through the first seal the electrode will be energized and a signal will be transmitted to the sensing unit at ground surface causing a red light to turn on The electrode probe is installed in all units but the sensing unit is supplied at extra cost and must be ordered In operation the seal failure unit indicates only that there is some water in the seal chamber The pump will continue to operate but the seal should be checked immediately after failure is indicated The sensing unit is recommended on all installations as good insurance against motor failure Pump The submersible pumps in this manual are supplied for 1 and 3 phase and for 200 230 460 or 575 volts Power cable is supplied with the green wire for ground Be sure green wire is connected to a good ground such as water pipe or ground stake Heat Sensors All motors have heat sensor units embedded in the motor winding to
14. gh rotor core IMPORTANT Use only compression type insulated connectors on the wires Do not tape leads as oil will deteriorate the tape and cause damage to stator and bearings Check top bearing If clean and does not turn rough bearings can be reused and it is not necessary to completely dismantle pump to change bearings If bearings are damaged with dirt or heat they must replaced Remember to reinstall the upper bearing load spring Replace stator housing onto seal chamber and bolt in place BE SURE SEAL FAILURE WIRE IS CONNECTED BEFORE HOUSING 15 ASSEMBLED Be sure O ring seal has been replaced If O ring is nicked or cut replace with new one This applies to all O rings used in assembly 10 I1 12 After all leads are reconnected in the connection box make a high voltage ground test on each wire The only wire that should show ground is the green power lead and the ground lead in the auxiliary control cable For safety complete pump should be air checked under water for leaks Lay pump on side for this oil filling with oil fill hole upright Do not completely fill leave oil about 1 inch below the plug hole Use only Hydromatic submersible oil in this chamber or high grade transformer oil Replace the plug use Permatex on threads Install air valve in top plug opening of motor housing and charge housing with about 10 psi of air Be sure air is dry Do not use air line where
15. horsepower surface motor so heaters must be sized by the nameplate rating IMPORTANT Make certain the heat sensor wires are connected in series with the starter coil circuit if other than Hydromatic starters are used Installation Instructions Installing Pump in Sump Before installing pump in sump lay it on side and turn impeller manually Impeller may be slightly stuck due to factory test water so it must be broken loose with small bar or screwdriver in edge of vanes The impeller should turn freely Clean all trash and sticks from sump and connect pump to piping A check valve must be installed on each pump A gate or plug valve in each pump discharge line is also recommended This valve should be installed on the discharge side of the check valve so the line pressure can be cut off if necessary to service the check valve Single pump systems are sometimes installed without a check valve where it is desirable to self drain the discharge line to prevent freezing This can be done only with short discharge lines Otherwise water will return to the sump and cause short cycling of the pump NEMA 4 Junction Box Optional A NEMA 4 junction box should be used to make power and control connections if electrical control panel is to be set remote from the pump sump The Hydromatic NEMA 4 junction box is provided with compression connectors for sealing all wires No sealing compound is needed to make connecti
16. ined remove hold down bolts and lift off Use care in lifting as the seal failure connecting wire must be disconnected before housing is completely removed 4 Set assembly on bench and remove connection box When box is lifted off connection wires to motor will be exposed These wires will probably be burned but each wire is tagged with a metal marker giving wire number Cut the wires If the leads to the connection box are burned a complete new connection box with new WARNING WARRANTY IS VOID IF HEAT SENSORS ARE NOT CONNECTED AS SHOWN IN SERIES WITH CONTACTOR OIL TWO WIRE CONTROL OFFERING AUTOMATIC RESET L1 ON OFF THERMOSTATS SWITCH COIL IN SERIES BLACK WHITE THREE WIRE CONTROL OFFERING AUTOMATIC RESET L1 THERMOSTATS 12 START OL OL IN SERIES BLACK WHITE IN CERTAIN APPLICATIONS THE NEC MAY REQUIRE THREE OVERLOAD RELAYS wire must be used The wires are potted in with sealing compound and a new unit must be obtained from the factory The stator is held in the housing with bolted in clamp ring After ring is removed turn housing upright and bump on hardwood blocks This should jar the stator loose and allow it to drop out Thoroughly clean housing before replacing new stator Replace stator and make all wire connections to connection box before replacing housing on pump This is important as leads must be tucked behind the windings by using hands up throu
17. ons waterproof Wiring diagrams are provided with the panel for making connections The size wire to use from the panel to sump depends on motor size and distance in feet Be sure each wire is checked out so that a wrong connection will not be made An ohmmeter or Megger can be used to check wire continuity Installing Switch Controls The controls are supported by a mounting bracket that is attached to sump wall cover or to the NEMA 4 junction box Cord snubbers are used to hold the cord in place Control level can be changed at any time by loosening the snubber and readjusting cord length NUMBER OF CONDUCTORS REQUIRED BETWEEN CONTROL PANEL AND NEMA 4 JUNCTION BOX POWER LINES AND CONTROL WIRES CAN BE CARRIED IN CONDUIT OR CAN BE UNDERGROUND BURIED CABLE Number of Control Wires System Type Number of Ground Wires 8 Number of Power Lines HEAT SENSOR amp SEAL FAILURE Number of Ground Wires Number of Sensor Wires Simplex 3 1 Simplex with Alarm Duplex Duplex with Alarm 3 1 6 2 6 2 In either a simplex or duplex system the lower or turn off control is set just above the top of volute so that the volute will always be submerged during the pumping cycle The second or turn on control is set about 24 inches above the lower turn off control More distance between turn on and turn off controls can be used but sewage may become septic and excessive solid
18. or wear or clogged impeller Motor stops and then restarts after short period but overload heaters in starter do not trip 1 This indicates heat sensors in the motor are tripping due to excessive heat Impeller may be partially clogged giving a sustained overload but not high enough to trip overload heater switch 2 Motor may be operating out of liquid due to a failed level control 3 Pump may be operating on a short cycle due to sump being too small or from water returning to sump due to a leaking check valve Common Parts List E Part Port Ref Port Port Ref Port Port Qty o No Description No No Description No No Description 1 191014010 SCREW HHC 3 8 16UNC x 1 8 3 084720085 SEAL FAILURE ASS Y 26 083460033 KEY 3 8 54 H3H and 1 2 016640081 PLUG PIPE 3 8 1 4 070690002 HOUSING MOTOR 083460011 KEY 3 8 SAM SAMRC and S4HRC 1 3 152770305 35 CORD ASSEMBLY 10 4 1 5 000640041 SPRING BEARING ADJ 1 7 000650311 eiiim Mist 1 152770315 35 CORD ASSEMBLY 8 4 SOOW 1 6 126721001 CONNECTOR SPLICE 3 152770325 35 CORD ASSEMBLY 8 4 W 1 7 001500071 O RING 1 8 x 2 234 ID 22 228 1 085654027 egi SARC 1 152770335 35 CORD ASSEMBLY 6 4 000730011 CONNECTOR WIRE 3 au BENE I VARIES 4 000650031 UPPER BEARING BALL 9 001500121 O RING 1 8 x 3734 ID 42 240 29 010060011 CONNECTOR
19. s may collect for the pump to handle A frequent pumping cycle is recommended for best operation If an alarm system is used this control is usually set about 6 inches above the override control Making Electrical Connections All electrical wiring must be in accordance with local codes and only competent electricians should make the installations Complete wiring diagrams are glued to the inside cover of the panel All wires should be checked for grounds with an ohmmeter or Megger after the connections are made THIS IS IMPORTANT AS ONE GROUNDED WIRE CAN CAUSE CONSIDERABLE TROUBLE IMPORTANT If equipment is not properly wired and protected as recommended the warranty is void DUAL VOLTAGE 3 PHASE MOTOR WIRING 230V 5 6 toj 1 2 GREEN R BL L1 1 BL L2 L3 L1 Heat Sensors and Seal Failure Connections Be sure heat sensor wires are connected in series with the starter coil Connections are provided on the terminal strip Pump Operations Starting System 1 Turn H O A switch to Off position and then turn on main circuit breakers 2 Open all discharge valves and allow water to rise in sump 3 Turn H O A switch to Hand position on one pump and notice operation If pump is noisy and vibrates rotation is wrong To change rotation interchange any two line leads to motor 39 only Do not interchange main incoming lines If duplex system check se
20. tion Connection Box 141410155 141410031 10 HP 200 3 3450 071380015 141410155 141410031 10 HP 230 3 3450 071380005 141410155 141416031 10 HP 460 3 3450 071380005 141410155 141432031 10 HP 575 3 3450 071380015 141410155 141430031 15 HP 200 3 3450 071380015 141410155 141430031 15 HP 230 3 3450 071380005 141410155 141436031 15 HP 460 3 3450 071380005 141412031 15 HP 575 3 3450 071380015 Rotor Shaft Ass y 141450115 141450115 141450115 141450115 141450115 141450115 141450115 141450115 Stator 141452031 141450031 141450031 141456031 141462031 141460031 141460031 141466031 2 SF S WG 00 IN Jo lt 0 j to CN T OO fre Od Iim i T CN TN CN T NOS gt v RAN CD LLL RNAI CED TS Y eu ANN 244 m CM n N 2 EIL NS N SS ES ox lt a WS Mats SI NN GY 2 7 COA ASA ot ZANE Vane KZ 24 7 8 22 9 10 Wet Ends Parts List 55 lt lt NESS NY T __ T O RING 1 8 x 9 984 ID 22
21. water may be trapped in the line Submerge complete unit under water and check for leaks Refill motor chamber with oil Use high grade transformer oil or Hydromatic special submersible oil Fill chamber until oil covers top of the windings Leave air space in top for expansion Use Permatex on plug threads Replacing Seals and Bearings 1 Drain all from motor chamber and seal chamber as described Remove motor housing as described Remove bolts that hold seal chamber to pump housing Use back off screws to break loose With hardwood block tap end of impeller to loosen from shaft When free remove impeller from shaft 4 10 Lift rotating assembly rotor shaft and impeller from pump case and place horizontally on bench Impeller Removal Hold rotor and remove bolt and washer from impeller end of shaft then thread bolt back into shaft The impeller is keyed to the shaft so by using a screwdriver on opposite sides behind the impeller apply force then tap on the end of the bolt to break impeller loose from taper shaft Remove impeller IMPORTANT Theimpeller is designed to be self tightening when running so impeller may be difficult to break loose If this is the case use plastic or rubber hammer on impeller tip to free Remove impeller Remove lower seal spring and pry out seal with screwdriver To remove seal housing take out socket head bolts and using bolts in
22. windings All 3 phases should show the same reading If no grounds exist and the motor windings check OK remove pump from sump and check for clogged or blocked impeller Pump operates with selector switch in Hand position but will not operate in Auto position 1 This indicates trouble in the float level control or the alternator relay 2 Check control trouble panel for Pump runs but will not shut off 1 Pump may be air locked Turn pump off and let set for several minutes then restart 2 Lower float control may be hung up in the closed position Check in sump to be sure control is free 3 Selector switch may be in the Hand position Pump does not deliver proper capacity 1 Discharge gate valve may be partially closed or partially clogged 2 Check valve may be partially clogged Raise level up and down to clear 3 Pump may be running in wrong direction Low speed pumps can operate in reverse direction without much noise or vibration 4 Discharge head may too high Check total head with gauge when pump is operating Total head is discharge gauge pressure converted to feet plus vertical height from water level in sump to center line of pressure gauge in discharge line Gauge should be installed on pump side of all valves Multiply gauge pressure in pounds by 2 31 to get head in feet 5 If pump has been in service for some time and capacity falls off remove pump and check f
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