DoorHan SHAFT-20 설치 및 운영 매뉴얼 - 페이지 5

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3. OPERATOR UNIT

Motor-reducer

Release knob

Mounting bracket

Limit switches

Control unit

Control unit housing

The operator design is not intended for heavy door, i.e. the door, which cannot be manually (or can be only with

great force) opened or closed. That is why, before the beginning of the operator mounting, it is necessary to check the

door and to make sure that the door is opened and closed easily by hand. To this effect it is required to lift the door

for about a meter and then to lower it. The door must remain in this position and not to move both up and down. If

however the door is moving on one of the directions, then there is a danger that balancing springs have been damaged

or incorrectly adjusted. In this case one must consider a possibility of increased wear or misoperation of the door.

WARNING! DANGER TO LIFE! Never attempt to change, adjust, repair or displace springs, which balance the

door weight or its brackets by yourself. They are stretched with great force and may cause serious injuries. It

is forbidden to operate the door requiring repair or adjustment, as such door defect or incorrect installation

may also result in serious injuries.

Before mounting of the garage door operator it is necessary to check that the door mechanics is in trouble-free

state and the door is balanced so that it can be easily moved by hand (EN 12604). Besides, one must inspect check

if the door is easily opened and closed. It is also required to bring mechanical devices for door closing, which are not

needed for operation of the door with the operator, into a nonoperable state. They include, in particular, door locking

mechanisms. The garage door operator is designed for operation in dry rooms, that is why its mounting in the open

is forbidden.

Figure 1

OPERATOR UNIT