Enerpac NS Serie Instrucciones página 5

Note: The cutting depth scale is calibrated only for the following
thread, bolt and nut types:
Imperial threads-Unifi ed (UN) bolt threads with heavy series nuts.
Metric threads-Metric (M) bolt threads with standard series nuts.
If any other thread, bolt or nut type is present, skip the following
steps in this section and refer to Section 6.2 for additional
instructions.
Note: Scale markings will vary
depending on cutting head size.
Figure 5, Blade Cutting Depth Scale
3. If tight, loosen the plastic set screw located on the cutting
head barrel. See Figure 3, item A.
4. Rotate the cutting head until the red marker line on the blade
holder is aligned with the required bolt size marker line on the
scale. See Figure 5.
5. Retighten the plastic set screw.
6.2 Adjusting Blade Cutting Depth
(If bolt diameter is NOT shown on the scale)
1. Measure the distance from the fl at of the nut to the furthest
side of the bolt. See Figure 6.
2. Advance and hold the nut splitter cylinder at full stroke.
3. If tight, loosen the plastic set screw located in the barrel
portion of the cutting head. See Figure 3, item A.
4. Rotate the cutting head until the distance from the head fl at
to the tip of the blade is the same as the nut to bolt distance
previously measured in Step 1 PLUS an additional 1 to 2
mm (1/16"). See Figure 7.
IMPORTANT: Ensure that the cylinder threads are not exposed.
If the threads are visible, a larger cutting head and possibly a
larger cylinder is required. Refer to Section 3.1 for additional
information.
5. Retighten the plastic set screw.
6. Retract the nut splitter cylinder.
"X" + inch [mm]
Figure 6
"X" + 1/16" [1-2 mm]
Figure 7
6.3 Nut Splitting Procedure
1. Verify that the nut splitter cutting head is the correct size (bolt
range) for the nut to be cut. See Section 3.2.
2. Ensure that the nut splitter blade is in good condition and that
the cutting edge is not worn, chipped or damaged. Rotate or
replace blade as required.
3. Adjust the blade cutting depth to prevent 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 fi lled to the correct level.
5. To help prolong blade life, lubricate the blade cutting edge
and fl anks with a molybdenum disulphide based lubricant or
other high quality lubricant.
CAUTION: Wear gloves when applying lubricants to
prevent contact with skin.
A
Figure 8, Positioning the Cutting Head
6. Position the cutting head over the nut, ensuring that the
fl at surface of the blade rests against one of the nut fl ats.
Centrally position the nut within the head so that the blade
will cut in the center of the nut fl at. See Figure 8, view "A".
7. Ensure that the underside of the cutting head is seated against
the fl ange, as the blade must cut as close to the bottom of
the nut as possible. However, if a washer is present under the
nut, position the nut splitter so that the cutting blade will not
contact the washer. See Figure 9.
IMPORTANT: Improper positioning of the nut splitter may cause
damage to the cutting blade, blade holder and piston.
Figure 9, Blade Position
8. Vented pumps only: open the vent/fi ll plug or loosen the
vent screw to provide venting.
9. Air or electric powered pumps only: Set the pump to deliver
a nominal pressure of 1000 psi [69 bar].
5
B
Blade
Washer
C