DBS-R03 ROLL-OVER FOR .250 WIDE BANDS APPLICATION TOOL
The DMC Roll-Over tool (Part No. DBS-RO3) Is used to fold the extended band tab securely over the buckle. Experts agree that the "folded tab" method assures maximum strength and reliability. Like other DMC Band Application Tools, the Roll-Over Tool is compatible with all currently available bands.

DMC also provides the DBS-RO4 Roll-Over Tool for use with .125 wide Mini- Bands. This tool is similar to the
DBS-RO3 in size and shape.

A short piece of unused band material is fed into the tool far enough to fully engage the gripping mechanism. The other end is then inserted and latched into the calibration fixture. Full tension is then exerted by the tool and read directly on the precision dial indicator portion of the calibration fixture. Simple adjustments can be made to the tool. A quick release mechanism is provided to allow the operator to easily remove the tool from the test fixture.

FIELD CALIBRATION FIXTURES & GO/NO-GO GAGES were developed to allow the user a quick means of checking calibration of band application tools in the field. A band is placed into the calibration fixture. The band is drawn through the tool until the nose of the banding tool is firmly against the calibration fixture. Once the full banding pressure has been applied, insert the "GO' side of the Gage into the verification slot of the calibration fixture. If it does not insert freely, the tool is exerting excessive force. Likewise, if the NO-GO probe freely enters the verification slot, the tool is below the minimum force, thus alerting the user that the tool is out of calibration.

Careful measurement should be made prior to installing the backshell. The outer jacket is then uniformly removed at a distance which would allow the braid to make a comfortable transition onto the backshell termination area. This dimension will vary depending upon the differences between cable and backshell diameters or other application dependent factors.

The braid is then trimmed to a length which will allow it to extend 1 inch past the backshell termination platform. Then the braid is carefully folded rearward to expose the wires which will be inside the backshell.

A sufficient number of wraps of self vulcanizing tape (normally red in color) are applied over the wires to buildup a diameter slightly less than the inside diameter of the backshell. Care should be taken not to apply tension to the contacts located in the outer perimeter of the connector.

These layers of tape are followed by a minimum of one layer of Teflon tape which will prevent adhesion with the backshell and other components.

The backshell is then installed onto the connector, using a nonabrasive tool such as a strap wrench. The braid is then carefully moved from under the backshell. It is important to retain the woven characteristics of the braid during this step.

Use self vulcanizing tape or a pre-formed component to build up the area behind the backshell. It is important that the braid is supported in the transition from the backshell rear diameter to the natural diameter of the wire bundle. Leave approximately 1/8 inch spacing between the tape wrap and the backshell.

The braid is pushed into position over the backshell termination platform. Care must be taken to make sure the weave is uniform and no large "windows" are present. A shield termination band is then loaded into the tool. The band is then slid over the connector/backshell assembly into a position of alignment with the termination platform. Apply an adequate amount of pressure in line with the cable as it enters the backshell to allow the 1/8 inch space to be reduced to zero. The tool is then activated to the pre-set tension. The band is then bent sharply at the buckle approximately 90° then cut-off using the cut-off lever on the tool. If band is un-curled for any reason, it must be double looped thru the buckle, before termination.

The 90° tab is then curled and folded back over the buckle using the roll-over tool.

For braided a non-jacket cable use fine point shears to trim the excess braid as close to the connector side of the bands as possible. Do not leave any unsecured braid wires longer than 1/8 inch. Do not allow the trimmed wires to fall into any areas where they may present a foreign object damage hazard.

PROCEDURE FOR MID CABLE SPLICING

The jacket is present, and shield are cut and separated to expose the wires requiring service. Care must be taken to avoid damaging the insulation on internal wires. The required service is then completed.

The wire bundle is then protected by a few wraps of self vulcanizing tape followed by 2-3 layers of Teflon tape. An appropriate size split ring set is then selected and installed.

One layer of Teflon tape is applied over the split ring set to hold the halves in position while the next steps are being performed.

The braid is then overlapped across the split ring set. Be sure the braid ends protrude completely under the band in both directions.

Heat shrinkable tape is then applied over the splice. Where a jacketed cable is used, be sure the tape extends onto the jacket in both directions.

APPLICATION  TOOLS , ACCESSORIES AND COMPONENTS

.250 Width Band Tools

.125 Width Mini-Band Tools

Pneumatic Band Tools for .250 width Bands

Pneumatic Band Tools for .125 width Bands

Tool Calibration Instrumentation

Banding Application Kit

Bands & Rings