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ASSEMBLY STEP 5
Set the Tension
• Insert a screwdriver tip into one of the nut ring slots
and brace it firmly against the trolley.
• Place a 7/16" open end wrench on the square end.
Rotate the nut about 1/4 turn until the spring releases
and snaps the nut ring against the trolley.
This sets the spring to optimum belt tension.
You have now finished assembling your garage door
opener. Please read the following warnings before
proceeding to the installation section.
Square
End
I,
Trolley
Nut Rin(
I BEFORE _ I AFTER RELEASE
1-1/4"
(2.5 cm) (3.18 cm)
Nut Rin(
INSTALLATION
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
1. READAND FOLLOWALL INSTALLATIONWARNINGSAND
INSTRUCTIONS.
2. Install garage door opener ONLYon properly balancedand
lubricated garagedoor. An improperly balanceddoor may
not reversewhen requiredandcould result in SEVERE
INJURYor DEATH.
3.ALL repairs to cables,spring assemblies and other
hardwareMUSTbe madeby a trained door systems
technician BEFOREinstalling opener.
4. DisableALL locks and remove ALL ropes connectedto
garagedoor BEFOREinstalling opener to avoid
entanglement.
5. Install garage door opener 7 feet (2.1 m) or more
abovefloor.
6. Mount emergency releasehandle6 feet (1.8 m)
abovefloor.
7. NEVERconnect garagedoor opener to power source until
instructed to do so.
8. NEVERwear watches, rings or loose clothing while
installing or servicing opener.They could be caught in
garagedoor or opener mechanisms.
9. Install wall-mounted garagecontrol console:
• within sight of the garagedoor.
• out of reachof children at minimum height of
5 feet (1.5 m).
• awayfrom ALL moving parts of the door.
10. Placeentrapment warning label on wall next to garage
control console.
11. Placemanual release/safetyreversetest labelin plain view
on insideof garagedoor.
12. Uponcompletion of installation,test safety reversal
system. Door MUSTreverseon contact with a
1-1/2" (3.8 cm) high object (or a 2x4 laid flat) on the floor.
13.To avoid SERIOUSPERSONALINJURYor DEATHfrom
electrocution, disconnect ALL electric and battery power
BEFOREperforming ANYservice or maintenance.
11
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