GATE OPERATION
49
GATE ALIGNMENT
If the gates are out of alignment, the problem is most often caused by the equalizer arms being bent or broken. To correct the problem, complete the following steps: For removal or replacement of the equalizer arms. 1. Start with the gates in the closed position. For this operation, the trailer must be adequately supported at the kingpin plate. 2 Shut off the air supply to the trailer and drain all the air from the system. 3. Remove both the air lines from each cylinder on both sides of the gates. 4. Remove the lower pin from the equalizer arm. 5. Using a come-along connected to the winching eyes, open the street-side gate.
When manually opening gates, do so from the street side only, using the winching eye. Failure to do so may damage gate mechanism.
6. Remove the upper pin.
Use caution when lowering the gate. Make sure no equipment or personnel are in the path or vicinity of the gates when lowering them.
7. Release the come along and lower the gate. 8. Align the gates by moving both gates to the curb-side or to the driver’s side to even the gate floors as much as possible. 9. After alignment, measure the distance between the holes of the equalizer arm center-to-center. Be sure to measure both the front and the back as sometimes the measurements can be different. 10. Adjust the equalizers to the measured length and lock them into place with the lock nuts. If the equalizer arms are the nonadjustable type, drill a hole centered at the measured distance. 11. For reinstallation of the arms, follow the same steps in the reverse order.
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