PLUMBING
Determine the type of brake system on your vehicle, refer to pages 3 & 4. All brake systems in use today require the MICO 691 Actuator(s) be installed after the
Contact MICO, Incorporated if you have questions.
Single 691 Brake Lock System
Single Brake System
1.Disconnect the existing brake line necessary to install the single actuator. Reduce fluid loss by plugging the ports. Do not loosen or remove hydraulic lines that are not effected by the installation of the single actuator.
2.Determine the length and shape of new or modified brake lines needed to install the actuator. The installer must be qualified to modify existing brake tubing, or new factory double flared SAE approved brake line must be used. When adding or replacing brake lines, do not use smaller diameter than existing lines. The MICO 691 Actuator is supplied with brass adapters designed to mate with 1/4" inverted flare tube nuts. Contact MICO, Incorporated or a local brake fitting supplier to obtain proper fittings to install different size lines. All new connections or modifications between flexing vehicle sections, such as vehicle body and frame, must be made to absorb shock and vibration. Common methods used to absorb this shock are coiling the brake tubing or using a short length of purchased brake hose. Follow procedures outlined by the vehicle manufacturer or SAE specifications.
3.Connect the upstream line coming from the vehicle master cylinder to the fluid inlet port on the end of the single actuator. Connect the downstream line going to either the front or rear brakes from the side outlet port on the same end of the single actuator. See Figure 16.
From
Master Cylinder (port not shown)
To Brakes
FIGURE 16
4.Determine the shape and length of a new piece of tubing to connect the power unit and single actuator. See Figure 17.
FIGURE 17
From
Power Unit
5.Connect one end of the new tubing to the single actuator.
6.Connect the other end of the new tubing to the power unit. This connection can be made to either the side or top port. Remove the plastic shipping plug from the top port. To install line in the side port use 3/16" hex key wrench to move the steel plug from side port to top port. Install the remaining brass adapter from the fitting package in the selected port prior to connecting the line. See Figure 18.
Plug One of
These Ports
FIGURE 18
Single Brake System with 691 System
Dual 691 Brake Lock System
Dual Brake Systems
1.Disconnect the existing rear brake lines necessary to install the dual actuator. Reduce fluid loss by plugging the ports. Note which master cylinder port supplies fluid to the front brakes and rear brakes. Do not reverse the front and rear fluid paths during the installation of new brake lines.
2.Determine the length and shape of new or modified brake lines needed to install the dual actuator. The installer must be qualified to modify existing brake tubing, or new factory double flared SAE approved brake line must be used. When adding or replacing brake lines, do not use smaller diameter than existing lines. The MICO 691 Actuator is supplied with brass adapters designed to mate with 1/4" inverted flare tube nuts. Contact MICO, Incorporated or a local brake fitting supplier to obtain proper fittings to install different size lines. All new connections or modifica- tions between flexing vehicle sections, such as vehicle body and frame, must be made to absorb shock and
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