Chamberlain 87504-267 Manual page 14
Smart led garage door openers
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Also See for 87504-267:
- Manual (180 pages) ,
- Owner's manual (56 pages) ,
- User manual (21 pages)
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Assembly
3 Tighten the Chain
1.
Loosen the inner nut and lock washer on the trolley threaded shaft.
2.
Tighten the outer nut until the chain is a 1/2" above the base of the rail at the midpoint of the rail.
3.
Re-tighten the inner nut.
Slack in the chain is normal when the door is closed. No readjustment is necessary.
1/2" (13 mm)
14
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