Step 4, Step 3 – Mighty Mule MM-SL2000B User Manual

Page 18

SL-2000B Instruction Manual 04.26.12

Determining the Mounting Position and Mounting the Operator
Step 2

Install chain brackets at each end of the gate on the inside

(operator side) of the gate (see Overview Illustration, page.

4). Position the tops of chain brackets no more than 6” above

the bottom corners of the gate frame and secure with U-bolts

(see Illustration B). The chain brackets will work on gate

frames 1

” to 2

” in diameter or square tube gates. The

U-bolts provided will work on 2” diameter pipe. Larger gate

sizes will require larger U-bolts.

Step 4

Find the center point between the two roller/fence posts (see

Illustration D). This should coincide with the position of the

center point of the operator. Dig a hole approximately 12” x 28”

wide x 28” deep. Place the operator in the hole on its legs and

position the bottom idler sprockets on the top of the string and

level the unit (see Illustration E). Make sure operator is level and

plumb. With the unit level and in place, pour the concrete and

let set for 24 hours before proceeding to the next step.

BEFORE POURING CONCRETE: 1] Make sure operator is

centered between roller posts and aligned with string; and,

2] Determine method of installing conduit for wiring (see page 5)!

Step 3

Insert a quick release

pin into the center slot

in each of the chain

brackets (see Illustration C). Tie a string to the end of each quick

release pin so that the string is tight between the two chain

brackets (the string will be used to align the operator). The string

should be 7”-10” from the ground (see Illustration B). The chain

brackets can be adjusted up or down on the gate to achieve the

proper height. The goal here is to set the height of the operator

so that when the housing is in place it will clear the ground by 1”

to 4” (see Illustration E).

Quick Release Pin

String

Chain Bracket

String

Chain Sprockets

Operator

(centered between post)

Roller

Gate

Fence Post

Center point between posts

Roller

Sprockets

String 7" to 10"

above ground

Housing

Level

1" to 4" clearance

Ground Level

position bracket so that string

will be approximately 7" to 10"

from ground level at the point where

the operator will be mounted

Quick Release Pin

String

Chain Bracket

Illustration B

Illustration C

Illustration D

Illustration E