Chamberlain 41A2817 Manual De Instrucciones página 3

7
7.d
7.f
7.a
7.b 7.c
7.e
1-1/4"
6. Reinstall the motor, motor bracket and components
_ Reinstall motor and motor bracket to the opener chassis.
_ Reinstall the limit switch assembly or travel module to the motor
bracket.
_ For openers with a limit switch assembly, install the limit drive gear
so that it meshes with the limit switch drive gear.
_ Align the opening of the limit drive gear or travel module with the
hole in the motor shaft and replace the retainer clip.
7. Reinstall chain/belt and set tension
_ Reconnect power to the garage door opener.
_ Run the opener until the sprocket (7a) completes a clockwise cycle.
_ Remove tape from chain/belt and rail. Reinstall chain/belt and
sprocket cover on sprocket.
_ To tighten the chain, turn outer nut (7b) in the direction shown.
_ When the chain is approximately 1/4" (square rail) or 1/2" (T-rail)
above the base of the rail at its midpoint, re-tighten the inner nut (7c)
to secure the adjustment.
_ To tighten the belt, manually thread the spring trolley nut (7d) on the
threaded shaft until it is finger tight.
_ Place a 7/16" open end wrench on the square end of the spring
trolley nut (7e). Tighten spring to a 1-1/4" tension (7f).
8. Proceed to Adjustments
Page 4 - (TYPE 1) Garage door opener with a limit switch assembly.
Page 5 - (TYPE 2) Garage door opener with a travel module.
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