Chamberlain LiftMaster Professional 50-1950 Assembly Instructions

1. Assemble post bracket assembly by placing push-to-open bracket
between the two post brackets as shown. Insert 3/8" hex bolt through
middle hole. Fasten with lock washer, flat washer and nut (Figure 1).
2. With gate in open position (90˚ from closed position), clamp bracket
assembly to post using C clamp.
3. Rotate the push-to-open bracket or the entire post bracket assembly
to obtain desired dimensions (Figure 2).
4. Once dimensions are obtained, insert 5/16" hex bolt and fasten with
flat washer, lock washer, and nut to secure pivot point.
5. Mount operator to bracket assembly clamped to post by inserting
push-to-open bracket into slot on motor side of operator. Insert pin
and hairpin clips to secure (Figure 3).
6. Mount gate bracket to actuator side of operator with pin and hairpin
clips (Figure 3).
Figure 3
Pin
Hex Bolt
Post Bracket
Push-to-Open Bracket
Flat Washer
Lock Washer
Hairpin Clip
Nut
Figure 1
Figure 2
5/16" Hex Bolt
Special Post Pivot Bracket for
Push-to-Open Installation
Push-to-Open Kit
Model 50-1950
3/8" Hex Bolt
Post Bracket
Push-to-Open Bracket
Post Bracket
3/8" Flat Washer
3/8" Lock Washer
3/8" Nut
Center of Gate Hinge
7-3/4"
90°
7-3/4"
Pin
Gate Bracket
Hairpin Clip