11
INSTALLATION
ASSEMBLY STEP 5
Tighten the Chain
Spin the inner nut and lock washer down the trolley threaded
•
shaft, away from the trolley.
To tighten the chain, turn outer nut in the direction shown
•
(Figure 1).
When the chain is approximately 1/4" (6 mm) 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 too loose.
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 in Figure 2 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.
NOTE:
You may notice loosening of chain after Adjustment Step 3
(Test the Safety Reversal System). Check for proper tension and
readjust chain if necessary. Then repeat Adjustment Step 3.
You have now finished assembling your garage door opener.
Please read the following warnings before proceeding to the
installation section.
Outer
Nut
Lock
Washer
Trolley
Threaded
Shaft
Inner Nut
To Tighten
Inner Nut
To Tighten Outer Nut
Base of Rail
Mid length of Rail
Chain
1/4" (6 mm)
Figure 1
Figure 2
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
WARNING
WARNING
WARNING
WARNING
READ AND FOLLOW ALL INSTALLATION WARNINGS
1.
AND INSTRUCTIONS.
Install garage door opener ONLY on properly balanced
2.
and lubricated garage door. An improperly balanced door
may not reverse when required and could result in
SEVERE INJURY or DEATH.
ALL repairs to cables, spring assemblies and other
3.
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
8.
installing 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.
•
Place entrapment warning label on wall next to garage
10.
door control.
Place manual release/safety reverse test label in plain view
11.
on inside of garage door.
Upon completion of installation, test safety reversal
12.
system. Door MUST reverse on contact with a 1-1/2"
(3.8 cm) high object (or a 2x4 laid flat) on the floor.
