Mount The Door Operator; Mounting Options - LiftMaster LJ8950W Manuel

Installation
2

Mount the Door Operator

MOUNTING OPTIONS

There are three options for mounting the door operator:
• Standard wall mount using the brackets included with the door operator.
• Outside bracket mount using the optional mounting bracket Model 3950MB.
• Inside bracket mount using the optional mounting bracket Model 3950MB.
Anchors must be fastened to structural members only. Use concrete anchors for masonry
construction.
NOTE: Mounting the operator to drywall is not recommended.
Mounting
brackets
STANDARD MOUNTING WITH BRACKETS PROVIDED
Drive sprocket middle position
5/8" (1.6 cm) from door guide
Drive sprocket inner position
1" (2.5 cm) from door guide
OUTSIDE MOUNT WITH OPTIONAL 3950MB MOUNTING BRACKET
Drive sprocket inner position
1" (2.5 cm) from door guide
Drive sprocket middle position
1-3/8" (3.5 cm) from door guide
Drive sprocket outer position
1-5/8" (4.1 cm) from door guide
INSIDE MOUNT WITH OPTIONAL 3950MB MOUNTING BRACKET
Door Guide
Door Guide
10
To prevent possible SERIOUS INJURY
or DEATH:
• Concrete anchors MUST be used if
mounting bracket into masonry.
• NEVER try to loosen, move or
adjust door, springs, cables,
pulleys, brackets or their hardware,
ALL of which are under EXTREME
tension.
• ALWAYS call an authorized service
technician if door binds, sticks or is
out of balance. An unbalanced door
might NOT reverse when required.
• Operator MUST be mounted at a
right angle to the door shaft.