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B.
PAD AND MOUNT
1. The concrete pad must be sufficient to support the gate operator and the dynamic forces
created by the moving gate. LiftMaster recommends a pad 20" wide by 22" long by 20" deep.
2. Four anchor bolts are required to secure the gate operator to the pad. The mounting holes in
the gate operator are 5/8" in diameter. L-bolts ½" x 6" are recommended.
3. The pad should be level and about 4" above grade to prevent water entrance. Allow concrete
to set at least two days before installing gate.
4. Be sure to provide access for wiring conduits. In Master/Slave systems, remember to include
conduit stubs for separate inputs (if any) and for the Master/Slave connection cable between
gate operators. For more information, see Installation and Operation of Master/Slave Systems
for Series B1 Gate Operators Doc. No. 6001378, Part 1.
NOTE: The only access area for the conduit stub is at the center of the pad, indicated as the
shaded area in Figure 2 Top View. Allow a minimum three-foot-long conduit stub.
Rev C
Figure 2. Pad and Mount.
INSTALLATION NOTES
Doc 6001287 (01-20284)
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