Tighten The Chain - Chamberlain Group 1120E Serie Manual De Propietario

ASSEMBLY STEP 5

Tighten the Chain

• Spin the inner nut and lock washer down the
threaded shaft, away from the trolley.
• To tighten the chain, turn outer nut in the direction
shown. As you turn the nut, keep the chain
from twisting.
• When the chain is approximately 13mm above the
base of the T-rail at its midpoint, re-tighten the
inner nut to secure the adjustment.
Sprocket noise can result if chain is either too
loose or too tight.
When installation is complete, you may notice some
chain droop with the door closed. This is normal. If
the chain returns to the position shown when the
door is open, do not re-adjust the chain.
NOTE: During future maintenance, ALWAYS pull
the manual release handle to disconnect trolley
before adjusting chain.
ASSEMBLY OF YOUR GARAGE DOOR OPENER IS NOW COMPLETE
Outer Nut
To Tighten Outer Nut
Chain
Base of T-rail
12
Lock
Washer
Inner Nut
To Tighten
Inner Nut
13mm