1.The top hung window can be opened by swivel the handles. When used at ordinary times, the action should be light and gently pull and push, do not use violence, For long term use, add a little oil for lubrication.
2.When using the top hung window, the push-pull track should be cleaned frequently to keep it clean. To make the surface of the orbit and groove free of hard particle matter
3.When clean it, the person cannot step on the frame, also do not pull frame to make support, otherwise frame can be pull out of shape, then cause window to push pull difficulty.
4.The glass sealing and sealing strips on windows are the key structures to ensure the sealing. lf they fall off, should be repaired and replaced in time.
5.Top hung window can use soft cloth in clear water or neuter scour to clean, but cannot use common soap and washing powder, particularly the detergent such as detergent with strong acid and alkaline.