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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.

Figure 1, Features and Components, NS Series Nut Splitter

(rear view)

Single

Acting

Models

Double

Acting

Models

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

Summary of Contents for NS Series

Page 1: ...he 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 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 press...

Page 2: ...inder to fully retract before disconnecting hydraulic hose s High pressure fluid 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...

Page 3: ...7 7 196 16 6 422 82 7 37 5 23 0 377 0 NSC 70 NSC 70D NSH 7085 NSB 70 NS 7095 NS 7095D 103 2 918 6 3 160 1 3 32 7 1 180 0 3 8 0 3 2 81 7 9 201 17 432 84 9 38 5 23 0 377 0 NSC 70 NSC 70D NSH 7095 NSB 70 NS 70105 NS 70105D 103 2 918 6 9 174 1 4 35 7 1 180 0 4 9 0 3 2 81 8 2 209 17 5 443 87 1 39 5 23 0 377 0 NSC 70 NSC 70D NSH 70105 NSB 70 NS 110115 NS 110115D 192 5 1712 7 4 189 1 4 36 9 2 234 0 1 3 7...

Page 4: ...psi 700 bar operation See Figure 4 for typical pump and hose arrangements Single acting nut splitters are equipped with one Enerpac CR 400 3 8 female coupler Double acting nut splitters are equipped with two Enerpac CR 400 3 8 female couplers Figure 4 Hydraulic Connections typical pumps shown Connect the hydraulic hose s between the pump and the nut splitter cylinder Check that couplers on both en...

Page 5: ... damage to the bolt threads Refer to sections 6 1 and 6 2 for adjustment instructions 4 Connect hydraulic hose s as described in Section 5 3 Check that hydraulic pump reservoir is filled to the correct level 5 To help prolong blade life lubricate the blade cutting edge and flanks with a molybdenum disulphide based lubricant or other high quality lubricant CAUTION Wear gloves when applying lubrican...

Page 6: ...positioned back in the same nut groove 4 If step 3 did not work Re lubricate the blade and the nut groove again Lift and position the nut splitter above the flange surface so that the blade will penetrate the nut approximately the height of the nut and in the same groove Then re apply pressure 5 If step 4 did not work Install a larger cutting head if available or use a larger nut splitter model Be...

Page 7: ...lds pressure but piston and blade do not move or move only a partial amount Pump reservoir not vented If using a vented pump loosen vent fill cap or vent screw as required to provide venting Coupler not fully assembled Check couplers Both hoses not connected double acting models only Be sure that both hoses are connected Piston at full stroke Allow piston to retract Blocked hose Replace hose 3 Nut...

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