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Enerpac
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NS-7095
Instruction Sheet
7 pgs486.05 Kb0

Enerpac NS Series, NS-7085, NS-7080, NS-7080D, NS-7095D Instruction Sheet

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Instruction Sheet
POWERFUL SOLUTIONS. GLOBAL FORCE.
L2923 Rev. B 09/09
Index:
English. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
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Repair Parts Sheets for this product are available from the Enerpac web site at www.enerpac.com, or from your nearest
Authorized Enerpac Service Center or Enerpac Sales offi ce.
1.0 IMPORTANT RECEIVING INSTRUCTIONS
SAFETY FIRST
2.0 GENERAL HYDRAULIC SAFETY PRECAUTIONS
Read all instructions, warnings and cautions carefully. Follow all safety precautions to avoid
personal injury or property damage during system operation. Enerpac cannot be responsible for damage or injury resulting from unsafe product use, lack of maintenance or incorrect product and/or system operation. Contact Enerpac when in doubt as to the safety precautions and operations. If you have never been trained on high-pressure hydraulic safety, consult your distribution or service center for a free Enerpac Hydraulic safety course.
Failure to comply with the following cautions and warnings could cause equipment damage and personal injury.
A CAUTION is used to indicate correct operating or maintenance procedures and practices to prevent damage to, or destruction of equipment or other property.
A WARNING indicates a potential danger that requires correct procedures or practices to avoid personal injury.
A DANGER is only used when your action or lack of action may cause serious injury or even death.
WARNING: Wear proper personal protective gear when operating hydraulic equipment.
WARNING: Do not exceed equipment ratings. Overloading causes equipment failure and possible
personal injury. The nut splitter is designed for a maximum pressure of 700 bar [10,000 psi]. Do not connect the nut splitter to a pump with a higher pressure rating.
Never set the relief valve to a higher pressure than the
maximum rated pressure of the pump. Higher settings
may result in equipment damage and/or personal
injury.
NS Series Hydraulic Nut Splitter
WARNING: The system operating pressure must not
exceed the pressure rating of the lowest rated
component in the system. Install pressure gauges in the system to monitor operating pressure. It is your window to what is happening in the system.
CAUTION: Avoid damaging hydraulic hose. Avoid
sharp bends and kinks when routing hydraulic hoses. Using a bent or kinked hose will cause severe back-pressure. Sharp bends and kinks will internally damage the hose leading to premature hose failure.
Do not drop heavy objects on hose. A sharp impact may cause internal damage to hose wire strands. Applying pressure to a damaged hose
may cause it to rupture.
IMPORTANT: Do not lift hydraulic equipment by the hoses or swivel couplers. Use the carrying handle or other means of safe transport.
CAUTION: Keep hydraulic equipment away from fl ames and heat. Excessive heat will soften
packings and seals, resulting in fl uid leaks. Heat also weakens hose materials and packings. For optimum performance do not expose equipment to temperatures of 65°C [150°F] or higher. Protect hoses and cylinders from weld spatter.
DANGER: Do not handle pressurized hoses. Escaping oil under pressure can penetrate the skin, causing serious injury. If oil is injected under the skin,
see a doctor immediately.
IMPORTANT: Hydraulic equipment must only be serviced by a qualifi ed hydraulic technician. For repair
service, contact the Authorized ENERPAC Service Center in your area. To protect your warranty, use only ENERPAC oil.
WARNING: Immediately replace worn or damaged parts with genuine ENERPAC parts. Standard grade
parts will break causing personal injury and property damage. ENERPAC parts are designed to fi t properly and withstand high loads.
1
2.1 Hydraulic Nut Splitter Safety Precautions
WARNING: Failure to observe the following precautions
may result in serious personal injury or death!
• Personal protective equipment must be worn at all times. Use of safety footwear, thick gloves, overalls and safety glasses is mandatory. These items are in addition to any other safety equipment required at your site.
• Keep personnel clear while pressurizing the system. Allow only relevant personnel to be within the work zone.
• Never exceed the maximum working pressure of the nut splitter or any associated ancillary equipment. The maximum working pressure of the nut splitter is 10,000 psi [700 bar].
• Do not place fi ngers or any part of the body between the nut splitter and the nut. Keep hands clear of the nut splitter head at all times and especially in the vicinity of the blade.
• Do not place fi ngers or hands underneath the body of the nut splitter to support the weight, as hands or limbs could be trapped when the pressure is applied.
• Lift the nut splitter using only the provided lifting eyebolt. Always use appropriate lifting equipment. See Section 3.1 for weights.
• The nut splitter handle is provided for positioning and maneuvering purposes only. Do not use the handle to carry the nut splitter.
• Do not strike the nut splitter (or any of its components) with a hammer or other objects in an attempt to shock or impact the nut.
• Do not attempt to move or reposition the nut splitter while it is in operation.
• Do not apply heat to the nut while the nut splitter is positioned on the nut.
• When in operation, do not stand along the axis of the nut splitter. Always stand to the side.
• Do not cut the nut into small pieces. Use a maximum of two cuts. The second cut must always be at 180º (opposite) to the fi rst.
• Hydraulic couplers are susceptible to knocks and damage. Therefore, be careful when handling the equipment. A damaged coupler or fi tting may burst or eject fl uid under pressure.
• Always allow the nut splitter cylinder to fully retract before disconnecting hydraulic hose(s). High-pressure fl uid may be ejected from an unretracted cylinder if a coupler has been damaged during handling.
• Fully release hydraulic pressure and disconnect hydraulic hose(s) from nut splitter cylinder before applying lubricant to blade or performing any other work inside the cutting zone.
• Be careful when handling severed nuts. Sharp edges can cause lacerations.
• Always use the correct size cutting head for the nut to be cut.
• Do not insert packing pieces or shims behind the nut or blade in an attempt to split a nut that is not within the specifi ed size range for the cutting head.
• Use the nut splitter to cut hexagonal nuts only. Do not attempt to cut square, round, bi-hex or 12-point nuts.
• Do not use the nut splitter to cut chains or bolts.
• Do not use the nut splitter to rotate nuts.
• Do not use the nut splitter's hydraulic cylinder for jacking, lifting, pushing or any other purpose than that for which it is intended.
• Sparks can be emitted at the blade tip when the nut fractures. To minimize the risk of sparks or hot metal fragments, a water spray can be directed over the entire nut and blade area. However if there is any doubt as to whether sparks can be effectively arrested, then the nut splitter should not be used.
• Never attempt to disconnect or retighten any part of the hydraulic system while under pressure. Be sure pressure gauge indicates zero (0) psi/bar before attempting to connect, disconnect or tighten hydraulic fi ttings.
• Treat hydraulic hoses with care. Do not kink, twist or sharply bend any hydraulic hose. Never exceed the hose manufacturer's specifi ed minimum bend radius. Never use a damaged, worn or split hose.
• Read and understand the operating instructions, maintenance instructions and safety precautions contained in this instruction sheet.
1. Cutting Head
2. Blade Cutting Depth Scale
3. Lifting Eyebolt
4. Handle
5. Hydraulic Coupler
6. Vent Plug (single acting NS70 models only)
7. Pipe Plug (single acting NS110 models only)
8. Hydraulic Coupler (double acting models only)
9. Hydraulic Cylinder
10. Cutting Blade
1
4
3
2
9
10
Figure 1, Features and Components, NS Series Nut Splitter
2
Single Acting
Models
Double
Acting
Models
5
6, 7
(rear view)
5
8
3.0 SPECIFICATIONS
3.1 Product Data
Nut Splitter
Model
Number
NS-7080
NS-7080D
Capacity
tons [kN]
103.2 [918]
Dimensions
inch [mm]
ABCDEFG
5.2
1.1
7.1
0.3
3.2
7.3
[132]
[28]
[180]
[8.0]
[81]
[186]
16.2 [412]
Weight
lb [kg]
81.4
[37.0]
Minimum Pump Oil
Capacity
3
in
[cm3]
23.0
[377.0]
Additional Model Numbers
Cylinder
Sub-
Assembly
NSC-70
NSC-70D
Cutting
Head Sub-
Assembly
NSH-7080 NSB-70
Replacement
Blade
NS-7085
NS-7085D
NS-7095
NS-7095D
NS-70105
NS-70105D
NS-110115
NS-110115D
NS-110130
NS-110130D
Note: A model number ending with “D” indicates double acting.
103.2 [918]
103.2 [918]
103.2 [918]
192.5
[1712]
192.5
[1712]
5.7
[145]
6.3
[160]
6.9
[174]
7.4
[189]
8.6
[219]
1.2
[30]
1.3
[32]
1.4
[35]
1.4
[36]
1.6
[41]
7.1
[180]
7.1
[180]
7.1
[180]
9.2
[234]
9.2
[234]
0.3
[8.0]
0.3
[8.0]
0.4
[9.0]
0.1
[3.7]
0.1
[2.5]
3.2
[81]
3.2
[81]
3.2
[81]
4.4
[111]
4.4
[111]
7.7
16.6
[196]
[422]
7.9
[201]17[432]
17.5
8.2
[209]
[443]
9.2
18.6
[234]
[472]
9.5
19.4
[242]
[493]
Double Acting Only
82.7
[37.5]
84.9
[38.5]
87.1
[39.5]
151.6 [68.8]
158.3 [71.5]
23.0
[377.0]
23.0
[377.0]
23.0
[377.0]
50.0
[819.5]
50.0
[819.5]
NSC-70
NSC-70D
NSC-70
NSC-70D
NSC-70
NSC-70D
NSC-110
NSC-110D
NSC-110
NSC-110D
NSH-7085 NSB-70
NSH-7095 NSB-70
NSH-70105 NSB-70
NSH-110115 NSB-110
NSH-110130 NSB-110
Notes:
• The NS Series is available in both single and double acting models. Single acting models use spring force to retract the blade. Double acting models use hydraulic force to retract the blade.
• A model number ending with “D” indicates that the nut splitter (or cylinder sub-assembly) is double acting. Refer to Section 3.1 for model numbers and additional information.
• Both single and double acting models use the same NSH series cutting heads shown in Section 3.1.
3.2 Nut and Bolt Ranges
Cutting Head
Subassembly
Model Number
NSH-7080 1.75-2.00
NSH-7085 1.75-2.25
NSH-7095 1.75-2.50
NSH-70105 1.75-2.75
NSH-110115 2.75-3.00
NSH-110130 2.75-3.50
AB
Bolt Range
inch [mm]
[M45-M52]
[M45-M56]
[M45-M64]
[M45-M72]
[M76-M80]
[M76-M90]
Hexagon
Nut Range
inch [mm]
2.75-3.13 [70-80]
2.75-3.50 [70-85]
2.75-3.88 [70-95]
2.75-4.25
[70-105]
4.25-4.63
[110-115]
4.25-5.38
[110-130]
4.0 DESCRIPTION
The NS Series nut splitter is a hydraulically operated industrial power tool, designed to quickly remove seized or heavily corroded nuts from threaded studs.
See Figure 1 for an overview of NS nut splitter major features and components.
A complete nut splitter consists of two separate subassemblies:
1) a single or double acting hydraulic cylinder and 2) a matching cutting head designed for use with a specifi ed nut size range. The replaceable cutting blade is installed in a blade holder mounted on the shaft of the cylinder subassembly. See Figure 2.
One cutting head is provided with each nut splitter. If desired, additional cutting heads for different nut size ranges can be purchased separately from Enerpac.
Refer to sections 3.1 and 3.2 for nut splitter specifi cations and additional information.
Cylinder Subassembly
Cutting Head Subassembly
3
Figure 2, Nut Splitter Subassemblies
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