User manual

Step 24: Connecting Door Arm to Trolley

Trolley must be at the factory preset fully close position. If not,

activate opener to bring trolley to factory preset close limit, (see

illustration).

Door arm assembly consists of the upper arm (straight piece) and lower

arm (curved piece). To assemble door arm, remove hairpin cotter from

clevis pin at front of trolley and slide clevis pin out far enough to slide

upper arm between left and right side of trolley body. Position upper door

arm so the end with the single hole lines up with the clevis pin. Slide

clevis pin completely back into trolley and reinstall hairpin cotter.

Attach warning tag and red pull knob to red release cord connected to

trolley.

Step 25: Setting Trolley Close Posi-

tion

Verify trolley close position is 11” to 13” between trolley

clevis pin and the inside face of the door. If adjustment

of the trolley position is required, use the close travel

adjustment screw located on the bottom of the motor

head. A 1/4 turn equals approximately 1” of trolley travel;

turn clockwise to decrease distance (forward) and

counter-clockwise to increase distance (backward).

Step 26: Connecting Door Arm to Door

Align lower door arm hole in curved end

(single hole) with middle hole of door

bracket. Install 5/16” clevis pin through

lower door arm and door bracket, slide

5/16” flat washer over clevis pin and se-

cure with retaining ring.

Align upper and lower door arm pieces to

nearest matching holes. Note: It may be

necessary to apply downward pressure

on the door or slightly raise the door

during this process. Secure upper and

lower door arms to each other using two

1/4-20x3/4” machine bolts and 1/4-20

nylock nuts.

Note: Door arm angle must be 10° to 30° degrees (see illustration). If not, repeat

Step 25 and increase distance between trolley clevis pin and inside face of the door.

Note: Install machine bolts as far apart as possible.