The travel distance limit setting and the downward force limit setting.
Liftmaster garage door opener limits.
Set the step ladder under the garage door opener in your garage and use it to access the up and down limit switch adjustment screws located on the side of the garage door opener motor housing.
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Adjusting these dials alters how far the garage door travels while closing and how much force in kilograms the motor uses.
The proper fully closed position is when the seal on the bottom of the garage door is resting on the.
The garage door opener trolley should stop in the fully open position at minimum 1 inch from the stop bolt on the opener rail.
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Changes are necessary if the door reverses during closing moves with too much force or strikes the ground and moves back to the top.
Door must reverse on contact with 1 1 2 3 8 cm high object or 2 x 4 laid flat on floor.
To check for compatible remote controls see liftmaster remote control and keyless entry compatibility chart.
Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products.
After any adjustments are made the safety reversal system must be tested.
8165w and 8164w are ac chain driven garage door openers.
Incorrect adjustment of garage door travel limits will interfere with proper operation of safety reversal system.
This video will show you how to program the travel limits in your liftmaster 8500 jackshaft.
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For information on adjusting your travel and force limits see how to program the travel on a security 2 0 and myq enabled garage door opener.
There are two types of adjustable down limit on liftmaster garage openers.
We design and engineer residential garage door openers commercial door operators and gate entry systems.
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Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products.