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CHAIN OR BELT - TENSION ADJUSTMENT
WARNING
• Observe all safety warning and precautions!
• Disconnect power from opener and disconnect
carriage in rail from bullet before beginning this
task.
Visually inspect the chain or belt every 6 months.
NOTE: Tension adjustments should be made with the
door in the down position and the carriage released.
• At the center of the rail the chain or belt should
not be resting on the rail. See adjustment
illustration on right.
– With the bullet NOT engaged to the carriage,
tighten adjustment nut until chain/belt does
not, at the center of the rail, rest on rail. Do NOT
overtighten.
• Is there rust on chain or frayed edges on belt?
– Contact a trained door system technician for
chain/belt replacement.
• Are there kinks or twists in the chain or belt?
– Contact a trained door system technician for
chain/belt replacement.
Tighten nut to increase
tension on chain or belt
Chain
Chain
Chain at center of rail
Approx. 1/8"
Adjustment required
Correctly adjusted
Belt
Belt
Belt at center of rail
Approx. 1/8"
Adjustment required
Correctly adjusted
BELT
CHAIN
©2010 The Genie Company 12/2010
21
REMOTE BATTERY REPLACEMENT
Replace remote battery with a CR 2032 coin cell battery.
1. Open the remote case using a washer or coin that fits
into the slot at the top of the remote.
2. Replace battery.
3. Align components and snap case closed.