Owner's Manual

4.8
www.geniecompany.com 03-12
Connection to the Door
SPRING
BOX
Attach to door using
1/4" -20 x 2 -1/4"
carriage bolts w/nuts
(or as recommended
by door
manufacturer)
DOOR CENTER LINE
TOP DOOR
ROLLER
Figure 12
Figure 13
SPRING BOX
BOTTOMED OUT
DAMAGED RAIL
1) Pull down on the drawbar arm locking sleeve and attach to carriage.
2) Position the spring box on the door as shown in Fig. 12, with
mounting holes on the door centerline. (Even with or above top
door roller).
NOTE: Make sure to use reinforcement bracket when attaching spring box to
door. Do not attach door bracket directly to door section.
3) For wood doors fasten the spring box to the door using two
1/4” -20 X 2-1/4” carriage bolts and nuts. For metal doors use two
1/4”- 20 self tapping sheet metal screws, or as recommended by the
door manufacturer.
4) Use two (2) 3/8” -16 X 7/8” bolts and nuts to attach the door
arms together.
NOTE: If the door strut interferes with the mounting of the spring box,
position it below the strut. DO NOT, in any way, cut or modify the strut.
Make sure that Spring Box does not bottom out when door closes. Fig. 13.
WRONG CORRECT
Heavy Duty Operator
GCL-GT