How do I hitch my trailer with the Model 660E, 750E, 850E actuator?

  1. The vehicle, towing hitch and ball must have a rating equal to or greater than the trailer G.V.W.R.
  2. Model 660E will accept 2” or 50mm trailer hitch balls only. Trailer balls larger than 2.00” (50mm) or out of round will not fit the coupler or may result in coupler failure. Balls smaller than 1.95” can cause shock loading and sudden disconnection. Make certain ball latch is in correct position to retain the hitch ball. Push latch until safety latch engages plate below latch. Insert safety pin into forward hole as a safety lock for the hitch ball coupler prior to towing. Do not tow trailer if coupler is damaged.
  3. Connect safety cables or chains using crossed pattern under tongue, or follow trailer manufacturer’s directions.
  4. Connect actuator breakaway cable S-hook to the tow vehicle only. Do not connect S-hook to the safety cables or chains.
  5. The breakaway system is designed to only operate after the trailer detaches from the tow vehicle and the safety chains have failed. The breakaway is not a parking brake. Do not use as such.
  6. If the breakaway is accidentally applied, insert a flat bladed screwdriver into the spring clip on the side of the actuator and pry sideways pressure to release.
  7. Any control devices that restrict operation of the actuator cannot be used. This includes certain sway control devices. The actuator must be free to telescope in response to braking requirements.
  8. Equalizing or weight distributing hitches that are designed to use with surge brake actuators may be used. Allow six to eight inches free chain length. DANGER: Tongue weight beyond rating limits will interfere with performance of actuator, and braking system, and the tow vehicle.
  9. The actuator is designed for use with Free-Backing trailer brakes. To block braking action, (in order to back up) with other types of brakes, use an electric solenoid. For trailer movement when brakes are not required, place the safety pin in the hole on the side of the actuator housing to block movement of the actuator. DANGER: Failure to remove pin will also prevent forward braking. Pin must be in the lower, forward hole as a safety lock for the hitch ball coupler latch when towing at all times.

660, 750, and 850 Coupler Latch Mechanism