Important Safety Notes; Site Preparations; Installation Instructions - Chamberlain SJ Owner's Manual

TO AVOID DAMAGE TO DOOR AND OPERATOR,
MAKE ALL DOOR LOCKS INOPERATIVE. SECURE
LOCK(S) IN "OPEN" POSITION.
IF THE DOOR LOCK NEEDS TO REMAIN
FUNCTIONAL, INSTALL AN INTERLOCK SWITCH.
DO NOT CONNECT ELECTRIC POWER UNTIL
INSTRUCTED TO DO SO.
It is imperative that the wall or mounting surface provide adequate support for the operator. The safety and wear
of the operator will be adversely affected if any of the following requirements are not met.
a) Mounting surface to be rigid to prevent play between operator and door shaft.
b) Provide a level base.
c) Permit the operator to be fastened securely and with the drive shaft parallel to the door shaft.
TYPICAL SHAFT INSTALLATION
1. Slide the shaft collar supplied over the door shaft to
desired position and secure in place.
2. Slide the operator on the door shaft until it contacts the
shaft collar. Insert the 4-1/2" key supplied into the operator
and the door shaft.
Hex Bolt
Door
Shaft Shaft
Collar
Hex Bolt
4-1/2" Key
Torque Arm
Right hand unit shown, hex bolts and
torque arms supplied by others, Door
side plates removed for clarity.

IMPORTANT SAFETY NOTES

CAUTION CAUTION

SITE PREPARATIONS

INSTALLATION INSTRUCTIONS

Shaft Collar
FIGURE 1
WARNING
WARNING
KEEP DOOR BALANCED. STICKING OR BINDING
DOORS MUST BE REPAIRED. DOORS, DOOR
SPRINGS, CABLES, PULLEYS, BRACKETS AND
THEIR HARDWARE MAY BE UNDER EXTREME
TENSION AND CAN CAUSE SERIOUS PERSONAL
INJURY. CALL A
SERVICEMAN TO MOVE OR ADJUST DOOR
SPRINGS OR HARDWARE.
CAUTION
3. Slide the second shaft collar on the door shaft until it
contacts the operator and secure in place, this will hold the
4-1/2" key in place.
4. Mount torque arm using 5/16-18 x 1" hex bolt to gear
box as shown in figures 1 & 2.
NOTE: For additional help refer to the illustrations below.
FIGURE 2
Right hand unit shown installed, Door
side plates removed for clarity.
PROFESSIONAL DOOR
Part of Door
W