No1 problem is dirt (on fiber or splicer's lens & groove) -Clean your fiber with isopropyl alcohol & lint-free wipe -Place the fiber into the cleaver groove -Then directly to splicer groove You must do these steps quickly so as the clean fiber don't get in touch with. No1 problem is dirt (on fiber or splicer's lens & groove) -Clean your fiber with isopropyl alcohol & lint-free wipe -Place the fiber into the cleaver groove -Then directly to splicer groove You must do these steps quickly so as the clean fiber don't get in touch with. Even seasoned technicians sometimes trip up on avoidable errors that reduce signal quality, shorten cable lifespan, or introduce unplanned downtime. Based on insights from Jonard Tools, here are the five most common mistakes—and how you can fix them right at the start of a job, using the right. One of the most common causes of splicing failures is dirty or damaged fibers. Dirt, dust, oil, or moisture can contaminate the fiber ends and prevent a good splice. Damage can occur from scratches, cracks, nicks, or bends in the fiber. To avoid this, you should always clean the fibers with. Proper fiber optic cable installation is critical to ensuring network performance and long-term reliability. These don't always show up immediately but may worsen over time as the network scales or as environmental stress takes its toll. This can be done using a fiber stripping tool, which is designed to remove the protective coating without damaging the fiber. Select the fiber holder set up for the upcoming fiber type of the fiber optic cable.