LiftMaster T T LOGIC CONTROL VERSION 2 Manual - Page 5

Installation Instructions, Important Note, Mount Header Bracket, Mount Operator - rail

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INSTALLATION INSTRUCTIONS IMPORTANT NOTE: Before the operator is installed, be sure the door has been properly aligned and is working smoothly. Although each installation will vary due to particular building characteristics, refer to the following general procedures to install the operator. MOUNT HEADER BRACKET The trolley operator is generally mounted over the center of the door. However, off center mounting may be required due to interfering structures or location of door stile / top section support. In such cases, the operator may be mounted up to 24" off center on torsion spring doors. Extension springs require center mounting. 1. Locate the center of the door and mark a line on the wall directly above the door. Extend this line up the wall. MOUNT OPERATOR 1. Allowing the motor to rest on the floor, raise the front end of the track assembly to the front header bracket and fasten using the 3/8" dia. x 6.40" long pivot shaft and cotterpins supplied. Header Bracket 2. Determine the highest point of door travel. Slowly raise the door and observe the action of the top section. When the top section reaches its highest point, use a level and project a line from this point to the center line the of the door. Carpenter's Level Header Wall High Point of Travel Door Travel Projection 3. Using the projected lines for location, mount a suitable wood block or length of angle iron to the wall above the door opening. Refer to the illustration below. This will provide a mounting pad for the front header bracket of the operator. If necessary reinforce the wall with suitable mounting brackets to ensure adequate support of mounting pad. Using suitable hardware, mount the (U-shaped) front header bracket to the pad. 3.50" 1.75" Cotterpins Pivot Shaft 2. Swing the operator to a horizontal position above the guide rails and temporarily secure with a suitable rope, chain, or support from the floor. Now open garage door slowly, being careful not to dislodge the temporary support. Using the door as a support, place a level against the rail and shim the operator until it is horizontal. Make sure that the operator is aligned with the center line of the door. Guide Rails Using the door as support, shim operator to a horizontal position. 4" MIN. High Rise Point Projection Line Vertical Center Line of Door Header Bracket Drill Pattern OOppeerartoartAolrigAnmliegnnt ment 5

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5
Carpenter’s
Le
v
el
Header
W
all
High Point
of Tra
v
el
Door Tra
v
el
Projection
IMPORTANT NOTE:
Before the operator is installed, be s
u
re the door has been properly aligned and is working
smoothly.
Altho
u
gh each installation will vary d
u
e to partic
u
lar b
u
ilding characteristics, refer to the following general
proced
u
res to install the operator.
MOUNT HEADER BRACKET
The trolley operator is generally mo
u
nted over the center
of the door.
However, off center mo
u
nting may be
req
u
ired d
u
e to interfering str
u
ct
u
res or location of door
stile / top section s
u
pport.
In s
u
ch cases, the operator
may be mo
u
nted
u
p to 24" off center on torsion spring
doors.
Extension springs req
u
ire center mo
u
nting.
1. Locate the center of the door and mark a line on the
wall directly above the door.
Extend this line
u
p the
wall.
2. Determine the highest point of door travel.
Slowly raise
the door and observe the action of the top section.
When the top section reaches its highest point,
u
se a
level
and project a line from this point to the center line
the of the door.
MOUNT OPERATOR
1.Allowing the motor to rest on the floor,
raise the front
end of the track assembly to the front header bracket
and fasten
u
sing the 3/8" dia. x 6.40" long pivot shaft
and cotterpins s
u
pplied.
3. Using the projected lines for location, mo
u
nt a s
u
itable
wood block or length of angle iron to the wall above the
door opening.
Refer to the ill
u
stration below.
This will
provide a mo
u
nting pad for the front header bracket of
the operator.
If necessary reinforce the wall with
s
u
itable mo
u
nting brackets to ens
u
re adeq
u
ate s
u
pport
of mo
u
nting pad.
Using s
u
itable hardware, mo
u
nt the
(U-shaped) front header bracket to the pad.
Vertical Center Line of Door
3.50"
1.75"
4" MIN.
High Rise Point
Projection Line
Header Bracket Drill Pattern
2. Swing the operator to a horizontal position above the
g
u
ide rails and temporarily sec
u
re with a s
u
itable rope,
chain, or s
u
pport from the floor.
N
ow open garage door
slowly, being caref
u
l not to dislodge the temporary
s
u
pport.
Using the door as a s
u
pport, place a level
against the rail and shim the operator
u
ntil it is
horizontal.
Make s
u
re that the operator is aligned with
the center line of the door.
Header Bracket
Pi
v
ot Shaft
Cotterpins
Using the door as support, shim
operator to a horizontal position.
Guide
Rails
Operator Alignment
INSTALLATION
INSTRUCTIONS