Pisanan, carane nginstal rel panuntun laci perabot 1. Kaping pisanan, kita kudu ngerti struktur slideway katrol bal baja, sing dipérang dadi telung bagean: rel movable, rel tengah lan rel tetep. Antarane wong-wong mau, lemari sing bisa dipindhah yaiku rel njero; Rel tetep yaiku njaba