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Multiquip ST4125G manual

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Table of contents for the manual

  • Page 1

    OPERA TION MANUAL THIS MANU AL MUST A CCOMP ANY THE EQ UIPMENT A T ALL TIMES. To fi nd the latest revision of this publication, visit our website at: www .m ultiquip.com MODEL ST4125G/ST6125G SUBMERSIBLE PUMP Re vision #0 (11/18/10)[...]

  • Page 2

    P A GE 2 — ST4125G/ST6125G SUBMERSIBLE PUMP • OPERA TION MANU AL — REV . #0 (11/18/10) T ABLE OF CONTENTS ST4125G/ST6125G Submersible Pump T ab le Of Contents .................................................... 2 P ar ts Ordering Procedures ...................................... 3 Saf ety Inf ormation ........................................[...]

  • Page 3

    ST4125G/ST6125G SUBMERSIBLE PUMP• OPERA TION MANU AL — REV . #0 (11/18/10) — P A GE 3 NOTES[...]

  • Page 4

    P A GE 4 — ST4125G/ST6125G SUBMERSIBLE PUMP • OPERA TION MANU AL — REV . #0 (11/18/10) SAFETY INFORMA TION Do not operate or service the equipment before reading the entire manual. Saf ety precautions should be f ollow ed at all times when operating this equipment. F ailure to read and understand the safety messages and operating instructions[...]

  • Page 5

    ST4125G/ST6125G SUBMERSIBLE PUMP• OPERA TION MANU AL — REV . #0 (11/18/10) — P A GE 5 SAFETY INFORMA TION GENERAL SAFETY CA UTION  NEVER operate this equipment without proper protectiv e clothing, shatter proof glasses, respiratory protection, hearing protection, steel-toed boots and other protective de vices required by the job or city an[...]

  • Page 6

    P A GE 6 — ST4125G/ST6125G SUBMERSIBLE PUMP • OPERA TION MANU AL — REV . #0 (11/18/10) SAFETY INFORMA TION PUMP SAFETY D ANGER  NEVER operate the equipment in an e xplosive atmosphere or near combustib le materials. An e xplosion or fi re could result causing se vere bodily harm or e ven death. W ARNING  Accidental star ting can cause [...]

  • Page 7

    ST4125G/ST6125G SUBMERSIBLE PUMP• OPERA TION MANU AL — REV . #0 (11/18/10) — P A GE 7 SAFETY INFORMA TION NO TICE  AL W A YS make cer tain that the voltage supplied to the pump is correct. Alwa ys read the pump’ s nameplate to deter mine what the power requirements are . P ower Cord/Cable Saf ety D ANGER  NEVER let po wer cords or cab[...]

  • Page 8

    P A GE 8 — ST4125G/ST6125G SUBMERSIBLE PUMP • OPERA TION MANU AL — REV . #0 (11/18/10) ST4125G/ST6125G SUBMERSIBLE PUMP — SPECIFICA TIONS T able 1. Specifi cations Model ST4125G ST6125G T ype Centrifugal Submersible Pump Centrifugal Submersible Pump Impeller Cast Ductile Iron Cast Ductile Iron Discharge Size 4.00 in. (101 mm) 6.00 in. (152[...]

  • Page 9

    ST4125G/ST6125G SUBMERSIBLE PUMP• OPERA TION MANU AL — REV . #0 (11/18/10) — P A GE 9 3.94 in. (100 mm) 5.90 in. (150 mm) 15.47 in. (393 mm) 6.97 in. (177 mm) 12.72 in. (323 mm) 16.89 in. (429 mm) 6.97 in. (177 mm) 12.72 in. (323 mm) 34.21 in. (869 mm) 28.9 in. (734 mm) 1 1.89 in. (302 mm) 1 1.89 in. (302 mm) 4.57 in. (1 16 mm) 30.67 in. (779[...]

  • Page 10

    P A GE 10 — ST4125G/ST6125G SUBMERSIBLE PUMP • OPERA TION MANU AL — REV . #0 (11/18/10) ST4125G/ST6125G — GENERAL INFORMA TION The Multiquip Model ST4125G and ST6125G submersible pumps are designed to pump water . These pumps work best when f aced with high head applications where you need an appreciable fl ow . Each pump has dual voltage [...]

  • Page 11

    ST4125G/ST6125G SUBMERSIBLE PUMP• OPERA TION MANU AL — REV . #0 (11/18/10) — P A GE 11 ST4125G/ST6125G — COMPONENTS Figure 2 shows the location of the basic components , f or the ST4125G and ST6125G submersible pumps . Listed below is a brief e xplanation of each component. 1. Strainer Base – This strainer base is made of stainless steel [...]

  • Page 12

    P A GE 12 — ST4125G/ST6125G SUBMERSIBLE PUMP • OPERA TION MANU AL — REV . #0 (11/18/10) FLOA T SWITCHES Mechanical Float Switch Mechanically activated fl oat switches off er a reliable low current control f or dew atering applications. How It W orks The mechanical fl oat s witch control will turn ON (close) when the fl oat tips 45° abov e[...]

  • Page 13

    ST4125G/ST6125G SUBMERSIBLE PUMP• OPERA TION MANU AL — REV . #0 (11/18/10) — P A GE 13 Float Switches F or unattended operation of the submersib le pump two single fl oat switches (Model SW -1WOP A) will be required. These fl oat switches can be connected directly to a control bo x (bare wires) and will allow the pump to turn on and off dep[...]

  • Page 14

    P A GE 14 — ST4125G/ST6125G SUBMERSIBLE PUMP • OPERA TION MANU AL — REV . #0 (11/18/10) FLOA T SWITCHES CB12/CB14 Control Bo xes F or remote pumping applications, both submersib le pumps, require a control bo x (Figure 7). The CB12 control bo x requires 230V AC , 3-phase input voltage f or nor mal operation, while the CB14 control bo x requir[...]

  • Page 15

    ST4125G/ST6125G SUBMERSIBLE PUMP• OPERA TION MANU AL — REV . #0 (11/18/10) — P A GE 15 CONTROL BOX INST ALLA TION Control Bo x Installation The f ollowing procedure outlines the steps f or connecting the pump to a control bo x. D ANGER The ST4125G and ST6125G submersible pumps are designed to work with a control bo x.This control bo x contain[...]

  • Page 16

    P A GE 16 — ST4125G/ST6125G SUBMERSIBLE PUMP • OPERA TION MANU AL — REV . #0 (11/18/10) CONTROL BOX INST ALLA TION Connecting SW -1WOP A Float Switches to Control Bo x 1. Remov e the fl oat switch input connector housing, then route the fl oat switch wires through the cable gland on the control bo x. Attach the wires of the fl oat switch t[...]

  • Page 17

    ST4125G/ST6125G SUBMERSIBLE PUMP• OPERA TION MANU AL — REV . #0 (11/18/10) — P A GE 17 230/460 V A C V oltage Selection The ST4125G/ST6125G submersible pumps are f actor y set at 230 V A C . T o change the voltage from 230 V A C to 460 V AC , reference Figure 8: T2 T1 T3 T4 T7 T5 BLACK BLACK GREEN GROUND RED WHITE BLACK T4 T7 T8 T5 T6 T9 T1 T[...]

  • Page 18

    P A GE 18 — ST4125G/ST6125G SUBMERSIBLE PUMP • OPERA TION MANU AL — REV . #0 (11/18/10) CB12/CB14 CONTROL BOX POWER CONNECTIONS 3-Phase P ower Installation (Input to Control Bo x) 1. The 3-phase input power cord should ha v e f our wires. Each wire is color coded. The colors are RED , WHITE , BLA CK and GREEN . 2. Remov e the 3-phase A C inpu[...]

  • Page 19

    ST4125G/ST6125G SUBMERSIBLE PUMP• OPERA TION MANU AL — REV . #0 (11/18/10) — P A GE 19 CB12/CB14 CONTROL BOX WIRING LA YOUT 2. ST ART FLOA T SWITCH. CONNECT TO TERMINALS 1 AND 2 3. STOP FLOA T SWITCH. CONNECT TO TERMINALS 3 AND 4 MOUNT CONTROL BOX IN AN UP-LEFT VERTICAL POSITION AS SHOWN. FLOA T SWITCH TERMINAL BLOCK CONTROLLER M A I N T R I [...]

  • Page 20

    P A GE 20 — ST4125G/ST6125G SUBMERSIBLE PUMP • OPERA TION MANU AL — REV . #0 (11/18/10) Pump Placement 1. Attach a suitab le lifting chain to the e ye bolts (Figure 10) on the pump . Use a crane, or similar lifting de vice and lower the pump into place . For applications where there is an e xcessiv e amount of mud, grit or silt, the use of a [...]

  • Page 21

    ST4125G/ST6125G SUBMERSIBLE PUMP• OPERA TION MANU AL — REV . #0 (11/18/10) — P A GE 21 OPERA TION 1 . When the electronic ov erload module detects an ov erload condition, the pump will shut down. Check the pump and correct the cause of ther ov erload. 2. Let the pump cool down, then press the RESET b utton (see Figure 15) on the front of the [...]

  • Page 22

    P A GE 22 — ST4125G/ST6125G SUBMERSIBLE PUMP • OPERA TION MANU AL — REV . #0 (11/18/10) MAINTENANCE Lubrication T o check the lubrication oil le v el of the mechanical seal perf orm the following: Checking Lubrication Oil Le vel 1. La y the pump (Figure 17) on its side with the oil plug f acing upwards . 2. Remov e oil fi ll plug. 3. Visuall[...]

  • Page 23

    ST4125G/ST6125G SUBMERSIBLE PUMP• OPERA TION MANU AL — REV . #0 (11/18/10) — P A GE 23 MAINTENANCE Impeller Remov al Ref er to the the f ollowing procedure and Figure 19 f or the remov al of the impeller . 1. Remov e oil plug (item 193) and o-ring (item 194). Drain oil from oil chamber as ref erenced in Figure 18. 2. Remov e suction strainer/[...]

  • Page 24

    P A GE 24 — ST4125G/ST6125G SUBMERSIBLE PUMP • OPERA TION MANU AL — REV . #0 (11/18/10) MAINTENANCE Electrical Insulation T esting Why perf orm electrical insulation testing? Electrical insulation star ts to age as soon as it is made. Harsh environments , especially those with e xtreme temperature changes and/or chemical contamination, cause [...]

  • Page 25

    ST4125G/ST6125G SUBMERSIBLE PUMP• OPERA TION MANU AL — REV . #0 (11/18/10) — P A GE 25 TROUBLESHOOTING T able 8. Pump T roubleshooting SYMPT OM POSSIBLE PROBLEM SOLUTION Pump F ails T o Star t Incorrect voltage/amps? Check that the proper v oltage, 230 or 460 V A C , 60 Hz, 3-phase is being supplied to the pump . Also check that there is an a[...]

  • Page 26

    P A GE 26 — ST4125G/ST6125G SUBMERSIBLE PUMP • OPERA TION MANU AL — REV . #0 (11/18/10) CB12/CB14 CONTROL BOX WIRING DIAGRAM L1 THREE PHASE WIRING CONNECTIONS EXTERNAL 3-PHASE (230 OR 460 VOL T) POWER SOURCE CIRCUIT BREAKER RED WHITE BLACK L1 L2 L3 GREEN GROUND G ON INDICA TOR LAMP M A1 A2 43 2 3 4 1 STOP FLOA T SWITCH ST ART FLOA T SWITCH TE[...]

  • Page 27

    ST4125G/ST6125G SUBMERSIBLE PUMP• OPERA TION MANU AL — REV . #0 (11/18/10) — P A GE 27 NOTES[...]

  • Page 28

    OPERA TION AND P AR TS MANUAL Y our Local Dealer is: HERE’S HOW TO GET HELP PLEASE HA VE THE MODEL AND SERIAL NUMBER ON-HAND WHEN CALLING © COPYRIGHT 2010, MUL TIQUIP INC. Multiquip Inc and the MQ logo are registered trademarks of Multiquip Inc. and ma y not be used, reproduced, or altered without w ritten permission. All other tr ademarks are t[...]