Genie ChainLift 800 Owner's Manual - Page 11
Assembly for CHAIN DRIVE OPENER
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POWER HEAD & RAIL ASSEMBLY Assembly for CHAIN DRIVE OPENER NOTE: Handle carefully! Drive chain can slide out of rail. NOTE: For power head and rail assembly locate Bag 1 from Box 1. NOTE: Copy serial number from power head frame and record it on warranty page. 1. Attach rail assembly to power head by aligning the sprocket onto the motor shaft. Use (3) bolts, 5/16 -18 x 1/2" (Fig. 1-5). 2. Tighten the chain by turning the adjustment nut clockwise. The chain adjustment nut is located in the Chain Pulley Bracket (opposite rail end from the power head) (Fig. 1-6). 3. Tighten chain until chain is approximately 1/8 inch above the base of the rail at midpoint on the rail (Fig. 1-6). Do NOT over tighten chain. CAUTION You should have removed all ropes and/or cables (NOT door lift cables) and disabled the door lock already. If you have not, remove all ropes and/or cables and disable garage door lock NOW before continuing with installation (Fig. 1-8). Set assembled power head and rail aside. Begin with Section 2 INSTALLATION. Assembly for BELT DRIVE OPENER NOTE: For power head and rail assembly locate Bag 1 from Box 1. NOTE: Copy serial number from power head frame and record it on warranty page. 1. Attach rail assembly to power head by aligning the sprocket onto the motor shaft. Use (3) bolts, 5/16 -18 x 1/2" (Fig. 1-5). 2. Tighten the belt by turning the adjustment nut clockwise. The belt adjustment nut is located in the Belt Pulley Bracket (opposite rail end from the power head) (Fig. 1-7). 3. Tighten belt until belt is approximately 1/8 inch above the base of the rail at midpoint on the rail (Fig. 1-7). Do NOT over tighten belt. Use 5/16"-18 x 1/2" Bolts FIG. 1-5 Rail - Power head assembly. Chain Pulley Bracket (at wall end of rail) Use 1/2" socket on adjustment nut Tighten nut to move pulley this direction Chain Chain 1/8" T-Rail at center of rail assembly T-Rail FIG. 1-6 Chain adjustment. Belt Pulley Bracket (at wall end of rail) Use 1/2" socket on adjustment nut Tighten nut to move pulley this direction Belt Belt 1/8" T-Rail at center of rail assembly T-Rail FIG. 1-7 Belt adjustment. CAUTION You should have removed all ropes and/or cables (NOT door lift cables) and disabled the door lock already. If you have not, remove all ropes and/or cables and disable garage door lock NOW before continuing with installation (Fig. 1-8). Remove Remove FIG. 1-8 Disable garage door lock. Set assembled power head and rail aside. Begin with Section 2 INSTALLATION. PN# 37026500123 05/15/2009 11