Chamberlain HD950WF HD950WF Owners Manual Manual - Page 19
STEP 9 Connect the door arm to the trolley (continued
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Installation STEP 9 Connect the door arm to the trolley (continued) OPTION B ONE-PIECE DOORS IMPORTANT: The groove on the straight door arm MUST face away from the curved door arm. 1. Close the door. Disconnect the trolley by pulling the emergency release handle. 2. Fasten the straight door arm and the curved door arm together to the longest possible length (with a 2 or 3 hole overlap) using the bolts, nuts, and lock washers. 3. Attach the straight door arm to the door bracket using the clevis pin. Secure with the ring fastener. 4. Attach the curved door arm to the trolley using the clevis pin. Secure with the ring fastener. 5. Pull the emergency release handle toward the garage door opener until the trolley release arm is horizontal. HARDWARE CORRECT Straight Door Arm (Groove facing out) Curved Door Arm One-Piece Door without Track INCORRECT Straight Door Arm Curved Door Arm Clevis Pin 5/16"x1-1/4" Clevis Pin 5/16"x1" Ring Fastener Lock Washer 5/16" -18 Hex Bolt 5/16"-18x7/8" Nut 5/16"-18 Ring Fastener Ring Fastener Nut 5/16"-18 Lock Washer 5/16" -18 Clevis Pin 5/16"x1-1/4" Hex Bolt 5/16"-18x7/8" One-Piece Door with Track Ring Fastener Ring Fastener Nut 5/16"-18 Lock Washer 5/16" -18 Clevis Pin 5/16"x1-1/4" Hex Bolt 5/16"-18x7/8" 18 Clevis Pin 5/16"x1" Clevis Pin 5/16"x1"