Micon 691 manual

Operation and Installation Instructions 691 LOCK SYSTEM READ GENERAL INSTALLATION GUIDELINES SHEET (FORM NO. 81-600-001) BEFORE PROCEEDING. 1. The MICO 691 System is a supplemental safety device which provides additional brake holding action when used with existing vehicle parking brake . It is not for dynamic service braking. 2. The 691 System mus[...]

Page SELF ADHESIVE LABELS ................................. 1 INTRODUCTION ...................................... 2 PRINCIPLE OF OPERATION ................................ 2 INSTALLING A 691 SYSTEM ................................ 3 IDENTIFY YOUR BRAKE SYSTEM ............................ 3 - 4 DIMENSIONAL DATA ................................... 5 [...]

1 THI S N O TI C EM U S T BE AFFIXED O ND A S HI N V I E W O F O PERA T O R Operator must read and understand W arnings and Operating Instructions before using vehicle (Form no. 81-690-032). 691 Brake Loc k T O LOCK: 1. Set parking brake 2. Move lock s witch to LOCK position T O RELEASE: 1. Move lock s witch to RELEASE position 2. Release parking b[...]

2 Vehicles today have two separate brake systems. One is the service brake system and the other is the parking brake system. The service brake system is used to slow or stop a vehicle during normal operation. The parking brake system is usually cable operated and used to hold the vehicle stationary while parked. Experience has shown that some vehic[...]

3 There are four steps to installing the 691 System. 1. Mounting 2. Plumbing 3. Wiring 4. Bleeding The 691 System must only be installed by someone with good working knowledge of automotive brake and electri - cal systems. It is important that the installer of the 691 System under - stands fluid types used in various 691 Systems. Read and understan[...]

4 Typical Split System (1 1/2 x 1/2) Two independent braking systems. One system leads to the front and the rear brakes and the other system leads only to the rear brakes. Identifying Feature: 1. Two lines from master cylinder. 2. Single hose to each front wheel. 3. Two hoses to rear axle. 691 Actuator Position: (1) Front axle (2) Rear axle (3) 4-w[...]

5 Power Unit Remote Reservoir - (optional) See 691 Accessories on page 19 DIMENSIONAL DATA 1 1/4" Diameter Bore Dual Actuator 1 1/4" Diameter Bore Single Actuator 1 3/4" Diameter Bore Dual Actuator 1 3/4" Diameter Bore Single Actuator User Interface millimeters inches Control Module[...]

CAUTION Label Pressure Switches 6 Several self adhesive labels are supplied with each 691 Brake Lock. Determine which labels are used in your application and affix in the vehicle cab in view of the operator. See page 1. Actuator 1. Repeat the mounting procedures for each actuator used in your system. 2. Find a location, preferably on the frame rail[...]

7 Determine the type of brake system on your vehicle, refer to page s3&4 .A l l brake systems in use today require the MICO 691 Actuator(s) be installed after the anti-lock brake valve and combination warning valve if so equipped. Contact MICO, Incorporated if you have questions. Single 691 Brake Lock System 1. Disconnect the existing brake lin[...]

8 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 master cylinder to the fluid inlet port on one end of the actua- tor. Note that the actuator is[...]

9 691 Wiring Instructions (Refer to diagrams on pages 14 & 15) The 691 System is designed for use on vehicles with a 12 volt DC, negative ground system. References to "ground" in this literature refer to vehicle chassis ground which is connected to the negative (-) battery terminal. References to "hot" or "positive"[...]

10 All electrical connections must be completed and the power unit reservoir filled with proper fluid before bleeding. The hydraulic brake system must be bled whenever any line has been disconnected. Although we recommend the use of pressure bleeding equipment when bleeding the system, some vehicle manufacturers do not advise certain bleeding metho[...]

11 6. Pressure Bleed - There are two options for pressure bleeding the brake system, either using a commercial pressurized bladder type bleeder or by activating the 691 Power Unit. Using commercial bleeder Follow manufacturer's instructions. Using 691 Power Unit A. Activate the 691 System. B. Starting at the actuators and moving outward to fou[...]

12 To Deactivate Lock Device 1. Disengage other provided holding devices. 2. Switch the user interface to "release" position. The "locked" indicator lamp will deactivate and the power unit will return brake system to static system pressure. 3. Release mechanical parking brake. Using 691 as an Interlock To Activate 1. Bring vehic[...]

13 NOTES[...]

691 System Installation Checklist NOTE: As you install the 691 System complete this check list. Upon completion of the 691 installation, retain this checklist with the 691 Operation and Installation Manual. Date installed: _______________ Name of person(s) installing: ______________________________________ Vehicle make:_____________________________[...]

o Yes o No 1. Are the wires protected from being hit or kicked and not hanging loose or pulled too tight? o Yes o No o N/A 2. If additional wire was added, is it the correct gauge and color as indicated in the 691 Operation and Installation Manual? o Yes o No 3. Trace each wire, are all wires either connected to something or properly capped off? o [...]

14 BRAKE LOCK APPLICATIONS Horn Relay User Interface Schematic[...]

15 INTERLOCK APPLICATIONS Horn Relay User Interface Schematic[...]

16 TROUBLESHOOTING Before Troubleshooting Unplug wire harness connectors. Check to be sure contacts are clean and making good contact and re - connect. Check the integrity of all wiring at the connectors. Also check to be sure all unused wires are properly capped. LED Display LED Display Explanation Motor Down On when system is releasing pressure. [...]

17 Situation Cause/Solution (Test in order indicated) When the 691 System is activated, the brakes will not lock-up and the power unit does not run. 1. No electric power. Check the battery, fuse, and wiring connections. 2. High Pressure Switch is inoperative. Activate the 691 System. If "PS1 (lock)" LED is on, unplug pressure switch 1. If[...]

18 NOTES The 691 System and "Motor Up" LED come on unexpectedly without being activated. 1. The control module is receiving false signals. Be sure stray signals are not being introduced into the external inputs. If the gray wire is not connected to an external input, ensure that it is capped off and not shorting to ground inadvertently. N[...]

19 691 MODELS AND REPLACEMENT PARTS Part Description Number 02-600-038 Remote Reservoir Kit for Silicone Fluid Models 02-600-049 Integral Reservoir Kit for All Type Fluid Models 32-820-022 11' Extension Harness from Power Unit to Control Module 691 ACCESSORIES TABLE 1 System Model Number Description 691 Fluid Vehicle Fluid Power Unit #1 - High[...]

20 User Interface Control Module Actuator Actuator Repair Kit Main Harness Reservoir Breather Plug 32-585-007 32-585-006 20-460-013 02-600-035 32-820-021 34-001-089 32-585-007 32-585-006 20-460-014 02-600-036 32-820-021 34-001-089 32-585-007 32-585-006 20-460-018 02-600-042 32-820-021 34-001-089 32-585-007 32-585-006 20-460-012 02-600-034 32-820-02[...]