Connect The Door Arm To The Trolley; Installation - Chamberlain LiftMaster ATS 2113X Owner's Manual

INSTALLATION STEP 12
Connect Door Arm to Trolley
SECTIONAL DOORS ONLY
• Make sure garage door is fully closed. Pull the emergency
release handle to disconnect the outer trolley from the inner
trolley. Slide the outer trolley back (away from the door) about
2" (5 cm) as shown in Figures 1, 2 and 3.
• Figure 1:
– Fasten straight door arm section to outer trolley with the
5/16"x1" clevis pin. Secure the connection with a ring
fastener.
– Fasten curved section to the door bracket in the same way,
using the 5/16"x1" clevis pin.
• Figure 2:
– Bring arm sections together. Find two pairs of holes that line
up and join sections. Select holes as far apart as possible to
increase door arm rigidity.
• Figure 3, Hole alignment alternative:
– If holes in curved arm are above holes in straight arm,
disconnect straight arm. Cut about 6" (15 cm) from the solid
end. Reconnect to trolley with cut end down as shown.
– Bring arm sections together.
– Find two pairs of holes that line up and join with bolts, lock
washers and nuts.
• Proceed to Adjustment Step 1, page 20. Trolley will re-engage
automatically when opener is operated.
HARDWARE SHOWN ACTUAL SIZE
Nut 5/16"-18 Écrou de
Rondelle-frein
Lock Washer 5/16"
5/16 po-18
de 5/16 po
Clevis Pin 5/16"x1"
Axe de chape de
5/16 po x 1 po (Chariot)
Hex Bolt
Boulon hexagonal de
5/16"-18x7/8"
5/16 po-18 x 7/8 po
Axe de chape de
Clevis Pin 5/16"x1-1/4"
Ring Anneau
5/16 po x 1-1/4 po
Fastener d'arrêt
(Support de la porte)
Outer Trolley
Ring
Fastener
Door
Bracket
Clevis Pin
5/16"x1-1/4"
Figure 1
Lock
Washers
5/16"
Nuts
5/16"-18
Door Bracket
Figure 2
Lock
Washers
5/16"
Nuts
5/16"-18
Figure 3
19
Inner Trolley
Clevis Pin
5/16"x1"
Straight
Door Arm
Curved
Door Arm
Emergency
Release
Handle
Bolts
5/16"-18x7/8"
Bolts
5/16"-18x7/8"
Cut This End