Enerpac NSH Series Operation And Maintenance Manual
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Enerpac NSH Series Operation And Maintenance Manual

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Operation and Maintenance Manual
Enerpac NSH-Series
NSH Cutting Head & NSPH Power Head
Document Number: L4489
Document Revision: C
Document Revision Date: 09-AUG-2021
Document Language: English EN
To reduce the risk of injury, users must read and understand this document
before use.

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Summary of Contents for Enerpac NSH Series

  • Page 1 Operation and Maintenance Manual Enerpac NSH-Series NSH Cutting Head & NSPH Power Head Document Number: L4489 Document Revision: C Document Revision Date: 09-AUG-2021 Document Language: English EN To reduce the risk of injury, users must read and understand this document...
  • Page 3 & gas and power generation rely on Enerpac for quality tools, services and solutions. For additional information, visit www.enerpac.com. WARRANTY Refer to the Enerpac Global Warranty document for terms and conditions of the product warranty. Such warranty information can be found at www.enerpac.com. NAMEPLATE Compliance Marking...
  • Page 4 ● For alle andre språk henviser vi til www.enerpac.com. ● Inne wersje językowe można znaleźć na stronie www.enerpac.com. ● Para outros idiomas consulte www.enerpac.com. ● Информацию на других языках вы найдете на сайте www.enerpac.com. ● För andra språk, besök www.enerpac.com. ● 如需其他语言， 请前往 www.enerpac.com.

  • Page 5: Table Of Contents

    Contents 1. SAFETY ........................4 1.1 SAFETY PRECAUTIONS .................. 4 2. COMPLIANCE STATEMENT(S) ................8 2.1 CONFORMANCE TO NATIONAL AND INTERNATIONAL STANDARDS ..8 3. FEATURES & COMPONENTS .................. 9 3.1 NSPH FEATURES DIAGRAM ................9 3.2 NSPH FEATURE DESCRIPTION ..............10 4.

  • Page 6: Safety

    In situation that, if not avoided, could result in the event that any questions or concerns minor or moderate personal injury. arise, contact Enerpac or a local Enerpac NOTICE Indicates information distributor for clarification.
  • Page 7 • Maximum allowable pressure for the NSPH Tool-Series is 10,000 psi [700 • Immediately replace worn or damaged bar]. Do not exceed this pressure setting. parts. Use only genuine Enerpac parts from approved distributors or service • Use only a high-quality non-flammable centers. Enerpac...
  • Page 8 • Do not strike the nut splitter (or any of CAUTION its components) with a hammer or other Failure to observe and comply with objects in an attempt to shock or impact the following precautions could result the nut. in minor or moderate personal injury. •...
  • Page 9 • Rope off working area and place warning cylinder for jacking, lifting, pushing or signs. any other purpose than that for which it is intended. • To help ensure proper operation and best performance, use of Enerpac oil is strongly recommended L4489_c...

  • Page 10: Compliance Statement(S)

    2. Compliance Statement(s) 2.1 Conformance to National and Enerpac declares that the product(s) have been tested and conforms to applicable International Standards standards and the product(s) are compatible to all EU and UK Requirements. •NSPH3 •NSPH4 •NSPH3D •NSPH4D Copies of the EU Declaration as well as the...

  • Page 11: Features & Components

    3. Features & Components 3.1 NSPH Features Diagram 1. Cutting Head 2. Blade Cutting Depth Scale 3. Handle 4. Hydraulic Coupler 5. Hydraulic Coupler (double acting models only) 6. Hydraulic Cylinder 7. Blade Wedge L4489_c...

  • Page 12: Nsph Feature Description

    Enerpac. See section 3.1 for an illustration of the Refer to sections 4.1 and 4.2 for nut splitter NSPH nut splitter major features and specifications and additional information.

  • Page 13: Technical Product Data

    4. Technical Product Data 4.1 NSPH Dimensional Callout Art Note: A model number ending with “D” indicates double acting. Double Acting Only Notes: • The NSPH Series is available in both • A model number containing “D” (e.g. ND3) indicates that the nut splitter (or single and double acting models.

  • Page 14: Nut And Bolt Ranges

    Cylinder Cutting Cylinder Head Weight Combined Additional Model Head Model Weight lb lb [kg] Weight Model Numbers Number Number [kg] lb [kg] Cutting Tip Service Kit NSH31 48.5 [22.0] 44.1 [20.0] 92.6 [42.0] NSH32 48.5 [22.0] 46.3 [21.0] 94.8 [43.0] NSPH3 NSPH3CTK NSPH3D...

  • Page 15: Operation

    5. Operation 5.1 Assembling Cutting Head 5.2 Hydraulic Pump and Cylinder A 10,000 psi [700 bar] hydraulic pump is required to operate the nut splitter. The cutting head is shipped disassembled from the cylinder. Assemble as described in If a single acting nut splitter is used, the the following steps: pump must be equipped with a pressure release valve.

  • Page 16: Hose Connections

    5.3 Hose Connections Connect the hydraulic hose(s) between the pump and the nut splitter cylinder. Check The nut splitter is equipped with an Enerpac that couplers on both ends of hose(s) CR-400 3/8” female coupler. Be sure to are fully screwed together. Firmly tighten...

  • Page 17: Adjusting Blade Cutting Depth (If Bolt Diameter Is Shown On The Scale)

    5.4 Adjusting Blade Cutting Note: Scale markings Depth (If bolt diameter is shown will vary depending on on the scale) cutting head size. The blade cutting depth scale allows the user to set the nut splitter’s maximum stroke, and the corresponding depth of the cutting blade.

  • Page 18: Nut Splitting Procedure

    “X” + 1/16" [1-2 mm] “X” + inch [mm] Figure 5 Figure 6 5.6 Nut Splitting Procedure 4. Rotate the cutting head until the distance from the head flat to the tip of the blade 1. Verify that the nut splitter cutting head is is the same as the nut to bolt distance the correct size (bolt range) for the nut to previously measured in Step 1 PLUS an...
  • Page 19 5. To help prolong blade life, lubricate the 8. Vented pumps only: open the vent/fill blade cutting edge and flanks with a plug or loosen the vent screw to provide molybdenum disulphide based lubricant venting. or other high quality lubricant. 9.

  • Page 20: If Nut Does Not Split At Full Hydraulic Pressure

    Notes: 13. After the cut is completed: • Air or electric powered pumps only: • Single acting models: Release the Once the blade has stopped cutting at pressure to retract the nut splitter blade. 1000 psi [69 bar], the pressure should be •...

  • Page 21: After Using The Nut Splitter

    After ensuring that there is no pressure present in the system, disconnect the hydraulic hose(s) from the cylinder. 6. Storage Enerpac tools should be stored in a cool dry place. Tools should always be cleaned, serviced and lubricated prior to storage. L4489_c...

  • Page 22: Maintenance

    7.3 Maintenance Cylinder disassembly and repairs should be Replace missing, worn or damaged parts. performed only by qualified personnel. Use only genuine Enerpac parts from 7.1 Inspection approved distributors or service centres. Enerpac parts have been engineered and A thorough inspection should be carried out manufactured to be fit-for-purpose.

  • Page 23: Cutting Blade Replacement

    7.4 Cutting Blade Replacement Ensure the correct blade wedge is fitted to the tool and has been checked for damage. Some minor blunting is acceptable, but cracked or chipped blade wedges should be replaced. The blade wedge is retained in the piston by the tip retention screw.

  • Page 24: Parts List

    8. Parts List Enerpac recommends that all kit components be installed to assure optimum performance of the repaired product. 8.1 NSPH3 Nut Splitter Cylinder Assembly Exploded Views � � � � � � � � Cutting Head See 9.9/ 9.10 Notes: Apply Loctite 577 to coupler threads.
  • Page 25 8.2 NSPH3 Nut Splitter Cylinder Assembly Table of Parts Item Description Part Numbers Flat Set Screw ❋ Female Coupler CR400 Cylinder Body DM1166190 Cylinder Piston DM1167051 Bushing Strip  End Cap DM1169020 Blade Carrier DM1170151 Blade Wedge ❋ Oil Seal Cup ...
  • Page 26 8.3 NSPH3D Double Acting Nut Splitter Cylinder Assembly Exploded Views � � � � � � � � � Cutting Head Cutting Head See 9.9/ 9.10 See 9.9 Notes: Apply Loctite 577 to coupler threads. Torque to 52-59 ft-lbs [70-80 Nm]. Apply Dow Corning DC4 silicone to cylinder bore before installing piston assembly.
  • Page 27 8.4 NSPH3D Double Acting Nut Splitter Cylinder Assembly Table of Parts Item Description Part Numbers Flat Set Screw ❋ Female Coupler CR400 Male Coupler CH604 3/8" NPT Nipple FZ1617 Bushing Strip  Blade Carrier DM1170151 Blade Wedge ❋ Cylinder Piston DM1261051 Cylinder Body DM1166190...
  • Page 28 8.5 NSPH4 Nut Splitter Cylinder Assembly Exploded Views � � � � � � Cutting Head See 9.9/ 9.10 Notes: Apply Loctite 577 to coupler threads. Torque to 52-59 ft-lbs [70-80 Nm]. Apply Dow Corning DC4 silicone to cylinder bore before installing piston assembly. Apply Dow Corning DC4 silicone to all O-rings and seals before installation.
  • Page 29 8.6 NSPH4 Nut Splitter Cylinder Assembly Table of Parts Item Description Part Numbers Flat Set Screw ❋ Female Coupler CR400 Cylinder Body DM1180190 Cylinder Piston DM1181051 End Cap DM1183020 Blade Carrier DM1184151 Blade Wedge ❋ Oil Seal Cup  Oil Seal O-Ring ...
  • Page 30 8.7 NSPH4D Double Acting Nut Splitter Cylinder Assembly Exploded Views � � � � � � � � � Cutting Head See 9.9/ 9.10 Notes: Apply Loctite 577 to coupler threads. Torque to 52-59 ft-lbs [70-80 Nm]. Apply Dow Corning DC4 silicone to cylinder bore before installing piston assembly. Apply Dow Corning DC4 silicone to all O-rings and seals before installation.
  • Page 31 8.8 NSPH4D Double Acting Nut Splitter Cylinder Assembly Table of Parts Item Description Part Numbers Flat Set Screw ❋ Female Coupler CR400 Male Coupler (half) CH604 3/8" NPT Nipple FZ1617 Bushing Strip  Blade Carrier DM1184151 Cutting Tip ❋ Cylinder Piston DM1261051 Cylinder Body DM1268190...
  • Page 32 8.9 NSH Cutting Head Assembly Exploded Views Cylinder Sub-assembly See 9.1 to 9.8 Note: Appearance of actual parts will vary slightly, depending on cutting head model. L4489_c...
  • Page 33 8.10 NSH Cutting Head Assembly Table of Parts Part Numbers Item Description Model Model Model Model NSH31 NSH32 NSH33 NSH34 Head Splitter NSH31A NSH32A NSH33A NSH34A Assembly Head ❋ ❋ ❋ ❋ Grub Screw ❋ ❋ ❋ ❋ Handle ❋ ❋...

  • Page 34: Troubleshooting

    9. Troubleshooting Fault Possible Cause Corrective Action Nut splitter cylinder will not Piston seal leaking. Replace seal. hold pressure. Coupler leaking. Replace coupler. Hydraulic pump Check hydraulic pump for malfunction. proper operation. Repair or replace pump as required. Nut splitter cylinder builds Pump reservoir not vented.
  • Page 35 Install correct coupler. used. Incorrect hose being used. Install correct hose. Pump release valve closed. Open pump release valve. Broken or weak piston Replace return spring. return spring. (single acting models only) Hydraulic oil too thick. Use correct (Enerpac) oil. L4489_c...
  • Page 36 © 2021 Enerpac Tool Group, All Rights Reserved. www.enerpac.com...

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