All Gliderol roller doors are designed to offer years of trouble free operation and generally require minimal maintenance. Manually operated roller doors should operate freely in either the opening or closing direction. Roller doors which are either difficult to lift or which appear to fall when moving in the closing direction may require some adjustment to the spring tension. This is best left to the services of a suitably qualified technician. All roller doors operate with the assistance of specially designed torsion springs which are under tension – as such serious injury may be sustained if the adjustment procedure is not undertaken correctly. Gliderol roller doors fitted with either the Glidermatic or Roll.a.matic remote control system should likewise require minimal maintenance. Any door which appears to be labouring during the opening or closing operation may also require some qualified adjustment. Ensuring that the guide sections in which the door runs are kept free from dust, dirt and other build up is a simple yet effective maintenance step which involves nothing more than carefully wiping the inside of the section with a rag. Do not lubricate the guide sections with oil,grease or any other petroleum based product. Recent development in lubrication technology has witnessed the introduction of silicone sprays which are readily available and offer suitable lubrication for roller door guide sections. Refer to warranty recommendations in regards to service frequency.