As explained in our previous blog Best Practices For Aerial Cable Placement, the stationary reel method may be used when attaching initial cable to a strand (new construction) or when attaching cable to an existing lashed cable and strand (overlash construction). This guide will help you to understand the difference between our standard J2 Lasher and the J2B.
The J2, shown above, is the original “Bell System standard” cable lasher for cables up to 3 in. (76 mm) on strands of 1⁄4 to 7⁄16 inch. diameter. This machine has overlashing capability with the turn of a lever to swing the strand lock out of the way. Its positive internal gear-to-gear mechanism has no chains or belts to stretch, slip, or break making it both safe and effective. It also has a positive mechanical brake that prevents lasher reverse until the brake is released.
At 46 lbs., (20.9 kgs) it is light enough to maneuver with relative ease. Constructed with plated steel, stainless steel, brass, bronze and aluminum components, it’s durable enough to last a lifetime. Because of the featured strand lock, we recommend the J2 lasher for technicians that perform both new construction on bare strand and overlashing.
The J2B, pictured below, is similar to the J2, however it is designed strictly for larger bundle overlashing. When overlashing consists of larger bundles, the strand lock of the J2 lasher can potentially interfere with the cable passing, even when the strand lock is in the open position.
The first thing you will notice about the J2B is the widened drive housing opening and the removal of the strand lock. The strand lock is only used for new construction and not for overlashing, and since the J2B is strictly for overlashing larger bundles, it was removed completely.
Lineman have told us that when there are multiple cables lashed together, part of the bundle has a tendency to migrate up towards the strand. The J2B has a relieved drive housing, giving the cables more room to move freely, preventing interference.
There’s also a removable handle that mounts to the front of the J2B’s drive housing. This provides a stable and accessible “grab point,” allowing the technician to comfortably use both hands to transfer the lasher around the pole.
GMP lashing machines withstand the test of time with routine repairs and maintenance. The J2, J2B, and every other GMP lasher are fully serviceable to “good-as-new” specifications at our factory and at factory-trained service locations around the globe.
Since 1936, General Machine Products has been a leader in supplying the telecom industry. Visit us today at gmptools.com or call us at 215-357-5500 to learn more about our product offerings.
