Installation 16

Step 5: Arm and Turnbuckle Shaft Adjustments

CAUTION

Turn off power before making any adjustments.

MODEL BG770 ADJUSTMENTS

1If necessary, rotate the pulley on the motor by hand until the crank arm on the gear reducer is perfectly aligned with the turnbuckle shaft (see Figure 11). This is the lowest point of the arm travel and should be preset in this position at the factory.

2If the arm is not level, loosen the jam nuts at both ends of the turnbuckle shaft Insert a screwdriver or other similar tool into the hole in the shaft. Rotate the shaft either CW or CCW as necessary until the gate arm is in the desired horizontal position. Retighten jam nuts.

Pivot Arm

Jam Nut

Pulley

Turnbuckle Shaft

Crank Arm

01-G0674F13

Figure 11: Model BG770

BG770 TURNBUCKLE SHAFT ALIGNMENT

If necessary align turnbuckle shaft with center of crank arm for lowest point of travel of pivot arm (see Figure 12).

01-G0674F14

Figure 12

Doc 01-G0674

Rev E