Craftsman 53479 Owner's Manual page 26

Installation Step 13
Connect Door Arm to Trolley
Follow instructions which apply to )Tourdoor type
as illustrated below and on page 27.
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" as shown in Figures 1, 2 and 3.
Figure 1:
• Fasten straight door arm section to omer trolley with a
clevis pin. Secure the connection with a ring t:astener.
• Fasten curved section to the door bracket in the same
way as shown.
Figure 2:
• Bring arm sections together. Find two pairs of holes
that line tip and join sections. Select holes as tar apart
as possible to increase door arm rigidity.
Figure 1
Clevis
Inner Outer
Trolley Trotley
Straight
Curved
Door Arm
Clevis
Pin
Figure 2
........... :=; ...............
Washers Iol II
Nuts 5/16"
131 II
\ - _ _ Emergency
\ /_ _ _,._2 e
Screwe
I Door 5/16"-18x7/8"
Bracket
Hole Alignment Alternative
Figure 3:
• If holes in curved arm are above holes in straight arm,
discomaect straight arm. Cm abom 6" froln the solid
end. Reconnect to trolley with c_tt end down as shown.
• Bring arm sections together.
• Find two pairs of holes that line tip and join with
screws, lock washers and nuts.
Figure 3
WLo°h
5/16" Zu/
II
_hL Sc_'
Hardware Shown Actual Size
© ©o
Nut 5/16" - 18 Lockwasher 5/16" Ring Fastener
P D ol
Hex Screw Clevis Pin
5/16"- 18 x 7/8" 5/16" x 1"
Proceed to Adjustment Step 1, page 28.
Trolley will re-engage automatically when the
opener is operated.
26