Chamberlain ATS 2113X - Manual (Page 7)

7
ASSEMBLY STEP 3
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 1/2" (1.27 cm) above the base •
of the 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 emergency
release handle to disconnect trolley before adjusting chain.
You have now finished assembling your garage door opener.
Please read the following warnings before proceeding to the
installation section.
To Tighten Outer Nut
Inner Nut
Lock
Washer
Trolley
Chain
Base of Rail
1/2" (1.27 cm)
Outer Nut
To Tighten Inner Nut
INSTALLATION
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
WARNING
WARNING
WARNING WARNING
READ AND FOLLOW ALL INSTALLATION WARNINGS AND 1.
INSTRUCTIONS.
Install garage door opener only on properly balanced and
2.
lubricated garage door. An improperly balanced door may
not reverse when required and could result in SEVERE
INJURY or DEATH.
ALL
3. repairs to cables, spring assemblies and other hardware
MUST be made by a trained door systems technician
BEFORE installing opener.
Disable
4. ALL locks and remove ALL ropes connected
to garage door BEFORE installing opener to avoid
entanglement.
Install garage door opener 7 feet (2.13 m) or more above
5.
floor.
Mount emergency release handle 6 feet (1.83 m) above
6.
floor.
NEVER connect garage door opener to power source until
7.
instructed to do so.
NEVER wear watches, rings or loose clothing while installing 8.
or servicing opener. They could be caught in garage door or
opener mechanisms.
Install wall-mounted garage door control:
9.
within sight of the garage door. •
out of reach of children at minimum height of 5 feet •
(1.5 m).
away from
• ALL moving parts of the door.
Install the entrapment warning placard next to the control 10.
station in a prominent location.
Place manual release/safety reverse test label in plain view
11.
on inside of garage door.
Upon completion of installation, test safety reversal system.
12.
Door MUST reverse on contact with a 1-1/2" (3.8 cm) high
object (or a 2x4 laid flat) on the floor.