Chamberlain 3595C 3/4 HP Owner's Manual page 19

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"x1-1/4" 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.
• Proceed to Adjustment Step 1, page 20. 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" (Door Bracket) 5/16"-18x7/8"
Outer Trolley
Figure 1
Nuts
5/16"-18
Door Bracket
Figure 2
Nuts
5/16"-18
Figure 3
19
Inner Trolley
Ring
Fastener
Door
Bracket
Straight
Door Arm
Curved
Door Arm
Clevis Pin
5/16"x1-1/4"
Lock
Washers
5/16"
Emergency
Release
Handle
Bolts
5/16"-18x7/8"
Lock
Washers
5/16"
Bolts
5/16"-18x7/8"
Cut This End
Clevis Pin
5/16"x1"