MICO 691 Brake Lock Systems lock hydraulic pressure in the service brakesto supplement the vehicle’s original equipment parking brake and provideextra holding in heavy-duty and high frequency applications. These systemsalso function as an interlock to apply pressure to the service brakes whenother vehicle mounted equipment is being used.The 691 System consists of a small electrohydraulic pump, remote mountedactuator (single and/or dual), electronic control module, and a small dashmounted user interface. The operator simply activates a switch and the 691System automatically applies, monitors, and maintains brake-locking pressure.A 691 Brake Lock will significantly enhance vehicle holding capability whilenot interfering with normal service brake function.The single and dual 691 Actuators are available in two different borediameters, 1-1/4″ displacing 1.77 in3 and 1- 3/4 ” displacing 2.90 in3 perchannel. For vehicles under 19,000# GVW Single channel system Self contained actuation system 800 psi line pressure Self monitoring Simple to operate; activates with a flip of a switch Does not interfere with normal service braking Provides added safety for vehicle, operator and work area Supplements existing parking brake for additional holding
