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Liftmaster 8550 Elite Manual

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IMPORTANT SAFETYINSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
1. READAND FOLLOW ALL WARNINGS ANDINSTRUCTIONS.
2. ALWAYS keep remote controlsout of reach of children. NEVER permit children to operate or
playwith garage door control push buttons or remote controls.
3. ONLY activate garage door when itcan be seen clearly,it is properly adjusted,and there are
no obstructions to door travel.
4. ALWAYS keep garage door in sight and away from people and objectsuntil completely
closed.NO ONE SHOULD CROSS THE PATH OFTHE MOVING DOOR.
5. NO ONE SHOULD GO UNDER A STOPPED,PARTIALLY OPENED DOOR.
6. Ifpossible, use emergencyrelease handle to disengage trolley ONLY when garage door is
CLOSED. Use caution when using thisrelease with the door open. Weak or broken springs or
unbalanced door could resultin an open door falling rapidly and/or unexpectedly and
increasing the riskof SEVERE INJURY or DEATH.
7. NEVER use emergency release handle unless garage doorwayis clear of persons and
obstructions.
8. NEVER use handle to pull garage door open or closed.If rope knot becomes untied, you
could fall.
9. After ANY adjustments are made, the safetyreversal system MUSTbe tested.
10. Safety reversal system MUST be tested every month.Garage door MUST reverse on
contact with 1-1/2" (3.8 cm) high object(or a 2x4 laid flat) on the floor. Failure to adjust the
garage door opener properly increases the riskofSEVERE INJURY or DEATH.
11. ALWAYS KEEP GARAGE DOOR PROPERLY BALANCED (see page 2). An improperly
balanced door mayNOT reverse when required and could resultin SEVERE INJURY or
DEATH.
12. ALL repairs to cables,spring assemblies and other hardware, ALL ofwhich are under
EXTREME tension, MUSTbe made by a trained door systemstechnician.
13. To avoid SERIOUS PERSONAL INJURY or DEATH from electrocution,disconnectALL
electricand battery power BEFORE performing ANY service or maintenance.
14. This operator system is equipped with an unattended operation feature. The door could
move unexpectedly.NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
15. DO NOT enable the Timer-to-Close functionality ifoperating either one-piece or swinging
garage doors.To be enabled ONLY when operating a sectional door.
16. SAVE THESE INSTRUCTIONS.
Operation
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