Chamberlain 995XD - Manual (Page 25)

25
INSTALLATION STEP 13
Connect Door Arm to Trolley
Follow instructions which apply to your door type as
illustrated below and on the following page.
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"x1-1/4" 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.
• Pull the emergency release handle toward the opener
at a 45° angle so that the trolley release arm is
horizontal. Proceed to Adjustment Step 1, page 27.
Trolley will re-engage automatically when opener is
operated.
Cut this end
Lock
Washers
5/16"
Nuts
5/16"-18
Bolts
5/16"-18x7/8"
Door Bracket
Ring
Fastener
Door
Bracket
Straight
Door Arm
Curved Door Arm
Inner
Trolley Outer
Trolley
Emergency
Release
Handle
Clevis Pin
5/16"x1"
Clevis Pin
5/16"x1-1/4"
Lock
Washers
5/16"
Nuts
5/16"-18
Bolts
5/16"-18x7/8"
Figure 1
Figure 2
Figure 3
Lock Washer 5/16" Nut 5/16"-18 Ring Fastener
Hex Bolt
5/16"-18x7/8" Clevis Pin
5/16"x1" (Trolley) Clevis Pin
5/16"x1-1/4" (Door Bracket)
HARDWARE SHOWN ACTUAL SIZE