Connect Door Arm To Trolley - Chamberlain 3000E Owner's Manual

INSTALLATION STEP 11

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 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.
IMPORTANT: The groove on the straight door arm MUST
face away from the curved door arm (Figure 4).
• 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 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 29. Trolley will
re-engage automatically when opener is operated.
HARDWARE SHOWN ACTUAL SIZE
Nut 5/16"-18 Lock Washer 5/16"
Clevis Pin
5/16"x1" (Trolley)
Ring Fastener
Clevis Pin
Hex Bolt
5/16"x1-1/4"
5/16"-18x7/8"
(Door Bracket)
Figure 1
Outer Trolley
Ring
Fastener
Door
Bracket
Clevis Pin
5/16"x1-1/4"
Figure 2
Lock
Washers
5/16"
Nuts
5/16"-18
Door Bracket
Figure 3
Nuts
5/16"-18
Figure 4 CORRECT
Straight
Door Arm
Curved
(Groove
Door
facing out)
Arm
27
Inner Trolley
Clevis Pin
5/16"x1"
Straight
Door Arm
Curved
Door Arm
Emergency
Release
Handle
Bolts
5/16"-18x7/8"
Lock
Washers
5/16"
Bolts
5/16"-18x7/8"
Cut This End
INCORRECT
Straight
Door Arm
Curved
Door
Arm