User manual LIFT-MASTER 65 9213

[. . . ] DUAL AUXILIARY TROLLEY MODIFICATION For Use With Models J, H and GH WARNING APPLICATION This modification is available for model J, H and GH operators. For 3/4 HP and higher side mount operators use #41 drive chain. 659213-XX WARNINGXX is door height. [. . . ] Determine which side of the door the operator will be mounted on and install the track with the double idler on that side at the center of the opening. Install the track assembly with the single idler on the other side of the center of the opening. Determine the length of the shaft needed to couple the two tracks together and cut the shaft provided to that length. Install a 48B14 sprocket on each end of the shaft using the (2) 1/4" x 1-1/2" roll pin provided (Figure 1). Use a tape measure to set the slider assemblies the same distance from the wall. Couple the shaft between the two idler assemblies by butting the 14 tooth sprockets together and connect with a #40 chain and master link (Figure 2). FIGURE 1 48B14 Sprocket 1" Bore 1" Diameter Shaft Be Sure Shaft is Flush With Sprocket. VARIABLE PARTS DOORS DOORS DOORS DOORS PART # DESCRIPTION 12'-14'' 16'-20' 22'-24' TO 26' K75-10259 Track Spacer 0 2 4 6 80-10383 Key Ring 1-1/4" 0 2 2 2 Drill 1/4" Hole - Pin with 1/4"x1-1/2" Roll Pin 1 I N S TA L L AT I O N INSTALL OPERATOR 1. Determine the length of shaft needed to connect the operator to the double idler assembly and cut the shaft provided to that length. Install the last 48B14 sprocket to one end of the extension shaft with the 1/4" x 1-1/2" roll pin provided (Figure 3). [. . . ] Bearing assembly should be mounted as close to the (50B12) sprocket as possible to prevent shaft flex. Refer to owner's manual for instructions on reversing limits. GH, H, J Operator (With Reversed Limits Logic 3 Requires Removal of Jumper) Disconnect Bracket 01-12575E © 2005, The Chamberlain Group, Inc. [. . . ]