Carver Pump Maxum OH1 Installation, Operation And Maintenance Instructions
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Carver Pump Maxum OH1 Installation, Operation And Maintenance Instructions

End suction process pump
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Maxum OH1 –
End Suction Process Pump
Part Number: _______________________________________
Serial Numbers: _____________________________________
These operating instructions contain fundamental information and precautionary notes. Please read the manual
thoroughly prior to installation of unit, electrical connection and commissioning. It is imperative to comply with all
other operating instructions referring to components of individual units.
This manual shall always be kept close to the unit's location of operation or directly on the pump set.
INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
I-402
402 – 17.04.EN
ATEX
Inch Units

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  • Page 1 I-402 402 – 17.04.EN ATEX Inch Units Maxum OH1 – End Suction Process Pump INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS Part Number: _______________________________________ Serial Numbers: _____________________________________ These operating instructions contain fundamental information and precautionary notes. Please read the manual thoroughly prior to installation of unit, electrical connection and commissioning. It is imperative to comply with all other operating instructions referring to components of individual units.
  • Page 2 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN EC Declaration of Conformity MANUFACTURER: CARVER PUMP COMPANY www.carverpump.com 2415 PARK AVE. Phone: 1-563-263-3410 MUSCATINE, IOWA, USA 52761 Email: sales@carverpump.com PRODUCT DESCRIPTION: Maxum OH1 Pump PART NUMBER: SERIAL NUMBER:...
  • Page 3 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN SERVICE RECORD PAGE Service No. ______________________ Model _________________________ Size and Type _______________ Customer Order No. ____________________________ Date Installed __________________________________ Installation Date Location Application PUMP RATING Capacity _____________________________________ Total Head ____________________________________...
  • Page 4 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN NOTES ON INSPECTION AND REPAIRS INSPECTION DATE REPAIR TIME REPAIRS COST REMARKS...

  • Page 5: Table Of Contents

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS TABLE OF CONTENTS SECTION/PARAGRAPH PAGE SECTION/PARAGRAPH PAGE GENERAL DESCRIPTION ....... 1 C. Foundation ..........14 A. General Information ........1 D. Leveling of Unit .......... 15 B.
  • Page 6 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN TABLE OF CONTENTS - Continued LIST OF TABLES LIST OF ILLUSTRATIONS NUMBER TITLE PAGE NUMBER TITLE PAGE 1. Fluid Temperature Limits ......5 1. Seal Chamber Dimensions ......9 2. Basic Design Features ....... 10 2.

  • Page 7: General Description

    User This manual is designed to provide sufficient material to Instructions is believed to be reliable. In spite of all the properly maintain the pumping unit. The information efforts of Carver Pump Company to provide sound and presented should improve...

  • Page 8: Parts Inventory Guide

    Carver Pump Company may ship an interchangeable The word “DANGER” indicates a location, equipment, or part that is not identical in appearance or symbol. This is system where imminent hazards exist, capable of done only if the part has been improved.

  • Page 9: Scope Of Compliance

    Where Carver Pump has supplied only the bare shaft G. SAFETY INSTRUCTIONS FOR MAINTENANCE, pump, the Ex rating applies only to the pump. The party INSPECTION AND INSTALLATION WORK.

  • Page 10: Unauthorized Modification And Manufacture Of Spare Parts

    The actual classification of the pump will be alterations of the pumping unit supplied are only engraved on the nameplate. permitted after consultation with Carver Pump and to the extent permitted by Carver Pump. Original spare parts II 2 GD c IIC 135 ºC (T4) and accessories authorized by Carver Pump ensure safety.
  • Page 11 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN In the ball bearing bracket area, the unit surfaces must be freely exposed to the atmosphere and the fan inlet Pump operation with the shut-off valves in flow must be unimpeded.

  • Page 12: Equipment Description

    All circuits NOT known to be dead must be with the applicable directives. considered live at all times. The Maxum OH1 is supplied with a casing that should  DO NOT wear loose or torn clothing around always be mounted solidly on an adequate bedplate. No rotating machines.
  • Page 13 (808D) and lockwashers (840J). (18) are housed in the bearing frame (19). Thrust ball Grouting of this type of base is required by Carver Pump bearings will be duplex 40° angular contact ball Company.

  • Page 14: Effects Of Fluids

    402 – 17.04.EN IV. EFFECTS OF FLUIDS. operation at some viscosity other than that for which the pump was originally designed, check with Carver Pump Company. Solids pumped in the fluid may cause D. EFFECTS OF SPECIFIC GRAVITY. The capacity...

  • Page 15: Seal Chamber Dimensions

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN Seal Chamber Dimensions (Inches) Stud Bearing Shaft Box Bore Circle Max Gland Total Clear Depth Stud Size Frame Pump Diameter Diameter Length Length Number Size (Qty = 4) 1.5748/1.5742 3.5430/3.5444...
  • Page 16 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN Table 2. Basic Design Features Shaft Deflection @ 20% Casing Design Shaft Bearing Critical @ Max. Pump Size Speed Stiffness Frame Speed Impeller Dia. (RPM) *Discharge Volute(s) @ Seal (in.) @ Impeller (in.) (RPM) AA- 1½...
  • Page 17 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN Table 3. Key Mechanical Data Bearing Frame Item Max power (BHP) @ 3500 RPM @ 1750 RPM 1500 @ 1150 RPM 1000 Bearing type - radial ball bearing 6211...
  • Page 18 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN Table 4. Permissible Nozzle Loads Suction Discharge Pump Size AA- 1½ x 1 x 6 AB - 2 x 1½ x 6 AC- 3 x 1½ x 6 AD - 3 x 2 x 6 AE - 4 x 3 x 6 BA - 1½...

  • Page 19: Inspection And Storage

    B. PACKING FOR RETURN. If the pumping unit is necessary to refurbish the pump. sent back to Carver Pump Company for repair, drain the unit, and re-seal all flanges and connections that were Consider a unit to be in storage when: covered or plugged.

  • Page 20: Installation

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN All openings of the assembled unit components are closed and must only be opened when required during installation. All blank parts and surfaces of the pump are oiled or greased (silicone-free oil and grease) to protect them against corrosion.

  • Page 21: Leveling Of Unit

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN D. LEVELING OF UNIT. When the pump is supplied E. GROUTING. After the pumping unit has been complete with motor and base, the unit is assembled at leveled and the alignment is correct, grout the unit to the the factory.

  • Page 22: Unit Leveling

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN Figure 4. Grouting and Foundation Bolting *Milled Leveling Pad *Motor Adjusting Block *Lifting Eye Milled Pads *Drip Pan & Drain *Leveling Bolt *Not on all Bases Figure 5. Unit Leveling...

  • Page 23: Coupling Alignment

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN F. COUPLING ALIGNMENT. The pump and motor shims under the feet or supports of the motor and are connected by a coupling. The base aligns the pump tighten fastening bolts until correct alignment is and motor.

  • Page 24: Pre-Installation Procedures

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN G. PRE-INSTALLATION PROCEDURES. depending on the type of plant and pump. The check valve, between the pump and valve, protects pump from 1. Complete Section VII, Paragraph D. water hammer and prevents reverse rotation in the 2.

  • Page 25: Operation

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN VIII. OPERATION. 7. Jog starter switch on motor to check that the direction of rotation agrees with the arrow on the pump. A. PRE-START CAUTIONS. 8. Before starting the pump, install closed guards around all exposed rotating parts.

  • Page 26: Starting The Pump

    (890E) or equal is not applications, consult your local distributor installed. Ball bearing temperature should not representative from Carver Pump Company. exceed 190° F (87° C). a. Remove plug (552C) on bearing frame E. MINIMUM/MAXIMUM FLOW CALCULATION. (19).

  • Page 27: Indefinite Shutdown

    Replace defective parts. 4. System head lower than design condition. 4. Adjust system head. Trim impellers to actual condition. 5. Incorrect impeller diameter. 5. Replace impeller or trim impeller to correct diameter. Consult with Carver Pump before trimming impellers.
  • Page 28 5. Check liquid temperature and adjust as high. necessary. 6. Incorrect impeller diameter. 6. Replace impeller or trim impeller to correct diameter. Consult with Carver Pump before trimming impeller. Vibration 1. Foundation bolting loose. 1. Torque bolting to proper values.

  • Page 29: Maintenance

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN MAINTENANCE. Semi-annual Inspection:  Check for coupling alignment due to settling of foundation. Generally, the pump does not need continuous  If stand-by pumps are installed, it is advisable to supervision.

  • Page 30: Lubrication Of Motor Ball Bearings

    Box Wrench Figure 7. Constant Level Oiler Vice Grips *Oil Mist. The Maxum OH1 comes equipped with Torque Wrench appropriate connections for the installation of an oil mist Bearing Heater system by the customer if oil mist lubrication is desired.

  • Page 31: Service And Repair

    1. Read this entire section study Sealing faces should be perfectly clean. Carver Pump applicable sectional or exploded view drawing Company recommends that all O-rings and shims are and parts list before disassembling the pump. only used once. DANGER...
  • Page 32 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN NOTE Parts marked with * are options. Parts marked with ** are not shown. Item Description Number Casing Bearing Frame Base *73B** Gasket - Casing Drain Flange *524** Blind Flange – Casing Drain Pipe Plug –...
  • Page 33 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN Item Item Description Description Number Number Casing 808E Hex Head Bolt – Bearing Frame to Base Base 820D Stud – Back Cover to Casing *73A** Gasket – Auxiliary Piping 820E** Stud –...

  • Page 34: Remove Coupling

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN 6. (Refer to Figure 9) Remove capscrews (800A), 10. Otherwise remove hex nuts (830F) from studs flatwashers (850A) and lockwashers (840A) and (820D and 820E) fastening casing (1) to back remove splash guards (132A and 132B).

  • Page 35: Disassembly Of Pump

    (*224) from casing (1). Remove O-ring service your Carver Pump. Refer to Figures 8 through (*700D) from discharge nozzle and discard. 13, the exploded views and Figure 16 to locate the (Refer to Figure 17) pump parts by item number and parts list.
  • Page 36 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN NOTE Parts marked with * are options or vary by pump or bearing housing size. Parts marked with ** are not shown. Item Item Description Description Number Number 552C Pipe Plug –...
  • Page 37 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN 11. Refer to Figure 13, remove locknuts (837) and 16. Remove shaft (6) (with radial and thrust bearing washers (850D) from studs (820A) fastening fan assemblies) from outboard end of bearing frame shroud (131B) to bearing frame (19) and (19).
  • Page 38 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN NOTE Parts marked with * are options or vary by pump or bearing housing size. Item Item Description Description Number Number 552B Pipe Plug – Bearing Cap Shaft Hose Clamp – Bearing Frame Cooling Fan...

  • Page 39: Parts Inspection

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN C. PARTS INSPECTION. 9. Check the wear ring clearances as follows: a. Measure outside diameter of front impeller 1. All parts should be thoroughly cleaned with a (2) wearing surface in three places.

  • Page 40: Reassembly Of Pump

    Carver Pump. Refer to Figures 8 through 2. If removed, install oil flinger (*60) on shaft (6) 13, the exploded views and Figure 16, pump with base, and tighten flinger setscrew (*871).

  • Page 41: Replacement Of Wear Ring

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN 4. Install shaft (6) (with radial and thrust bearing NOTE assemblies) from outboard end of bearing frame (19) in bearing frame. Seating the thrust ball Refer to mechanical seal vendor instructions for bearings (18) in the bearing frame.
  • Page 42 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN nozzle. Install O-ring (*700D) on discharge NOTE nozzle and install in casing. Tighten locknut to Parts marked with * are options that vary by secure discharge nozzle to casing.
  • Page 43 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN NOTE Back Cover Wear Ring (7B). When replacing casing wear ring with the CAUTION standard casing wear ring, (part number beginning with "00") machining in step 8 is not required.

  • Page 44: Motor

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN NOTE F. MOTOR. The motor should be maintained in accordance with the manufacturer’s instructions. When replacing back cover wear ring with the G. CHECK VALVE. If applicable, the check valve...

  • Page 45: Inducer

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN Table 10. Recommended Spare Parts List Item Description Item Description Number Number Impeller *73A** Gasket, Auxiliary Piping Impeller, Low-Flow High-Head *73B** Gasket, Casing Drain Flange Wear Ring Gasket, Bearing Frame/IB Bearing Cap...

  • Page 46: Exploded View Of Complete Pump

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN Figure 15. Exploded View of Complete Pump for Reference...
  • Page 47 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN Figure 16. Pump with Base...
  • Page 48 Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN Table 11. Parts List Item Item Description Description Number Number Casing 700C O-ring, Oil Pan/ Bearing Frame Impeller *700D O-ring, Discharge Nozzle Impeller, Low-Flow High-Head *715 Seal, Deflector – OB...

  • Page 49: Flanged Drain And Discharge Option

    Maxum OH1 – I-402 End Suction Process Pump 402 – 17.04.EN Item Number Description Item Number Description Casing *224 Discharge Nozzle Impeller, Low-Flow High-Head *700B O-Ring, Back Cover/Casing Wear Ring, Back Cover *700D O-Ring, Discharge Nozzle Back Cover 830F Hex Nut, Back Cover/ Casing...
  • Page 50 2415 Park Avenue, Muscatine, IA 52761 Phone: 563.263.3410 www.carverpump.com Maxum OH1 IOM 402 – 17.04.EN...

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