General Maintenance and Troubleshooting
3-4 SM 6495, Rev. 7, December 2008
3.2.5. Hold Clear Device (Brake) Removal/Replacement and Testing Procedure
WARNING
To avoid bodily injury, remove power from gate mechanism before
attempting to remove the hold clear device. The following steps MUST
be taken:
1. Position the gate arm of the Mechanism being serviced in the
desired position (See Section 3.2.9),
2. Electrically disconnect the Mechanism being serviced by
loosening the gold nut on Terminal 5B, and
3. Remove and insulate the B12 (or B24) supply wire from Terminal
2C.
3.2.5.1. Removal of Hold Clear Device
The hold clear device (J0702050438), is mounted on the left end of the gear motor (See Figure 3-1) in
the lower left corner of the gate mechanism. Before removing the hold clear device, secure the gate
arm and remove power from the gate mechanism. To remove the hold clear device, follow these steps.
1. Remove (white) brake wires 1B and 4B on circuit controller on 12-volt systems and 2B and 4B on
24-volt systems.
2. Loosen two (2) Allen head screws on the armature. Slide the armature off output shaft of gear
motor. Keep key in place. Remove spacers (one M46710601 and one M46710602).
3. Remove four (4) Allen head screws securing the hold clear device to the gearmotor.
3.2.5.2. Replacement of the Hold Clear Device
To replace the hold clear device, perform the removal procedure in reverse order. The air gap should
be measured and adjusted (if necessary) according to the following procedure.
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