Genie RAIL EXTENSION KIT Supplement Instructions page 2

9. At the door end of the rail, slide the carriage back into the rail. Make sure the door
arrow points toward the door. Fig. 7
10. Slide the rail coupler and 12 inch rail extension onto the pulley end of the rail. Coupler
will slide onto the pulley end rail section until it meets the stop tab on the bottom of
the rail. Align the 12 inch extension to the coupler with the pulley guard screw holes.
Fig. 8
11. Slide the pulley guard into the rail. Position the belt through the alignment slots of the
pulley guard. Insert the two pulley guard screws and tighten. The screws should align
with the clearance holes on the rail coupler. Fig. 9
12. Place the belt into the pulley and align the pulley with the pin hole in the pulley
holder. Insert the pin from underneath. It is important that the pin be inserted from
the bottom as shown. Fig. 10
13. Slide the pulley assembly into the rail until it hooks onto the edges of the rail end.
Check to make sure both sides of the pulley assembly are hooked on the rail end. The
holes in the ends of the pulley assembly should match up with the mounting holes at
the end of the rail. Important: confirm the pulley pin is still in place. Fig. 10-11
14. On the other end of the rail, slide the drive sprocket assembly to adjust its position
until the tabs rest in the slots in the rail end. Insert two mounting screws and tighten
with a 1/4" wrench or socket. Fig. 12.
Note: This is also illustrated in step 1G on the assembly & installation poster.
15. On the door end (pulley), tension the belt by tightening the adjustment nut on the
pulley assembly until the belt does not ride on the rail (approximately 1/8" off the rail.
Fig. 11
Note: This is also illustrated in step 2 on the assembly & installation poster.
16. Tie the short red release cord to the existing release cord on the carriage. This will
allow for the cord to be within reach following installation.
17. Proceed to step 3 on the assembly & installation poster.
Fig. 12
Fig, 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Belt Tension
Adjustment Nut
(7/16" )