Brake Lock Application Guide 2005
Contents
1. 02 691 109 Single Brake Lock System BF 02 691 201 Dual Brake Lock System BF 02 691 209 Dual Brake Lock System BF 02 691 303 3 Channel Anti Lock Brake Lock System BF 02 691 305 3 Channel Anti Lock Brake Lock System BF 02 691 403 4 Channel Anti Lock Brake Lock System BF BF Brake Fluid Over 19 000 GVW 19 000 GVW and under NOTE 691 System uses silicone fluid Brake Lock Product Line 691 Brake Lock System The new 691 Brake Lock System is the next generation brake locking device from MICO Designed to replace the original 690 Brake Locks that have delivered superior performance in the field for nearly a decade 691 Locks provide easier installation and enhanced performance MICO Brake Lock Systems lock hydraulic pressure in the service brakes to supplement the vehicle s mechanical parking brake and provide extra holding in heavy duty and high frequency applications The 691 consists of a small electrohydraulic pump remote mounted actuator single and or dual elec tronic control module and small dash mounted user interface The operator simply activates a switch and the 691 system automatically applies monitors and maintains brake locking pressure 691 Systems bring many improvements A small User Interface simplifies installation and conserves space on the often crowded vehicle dash A downsized Control Module is now microprocessor controlled and has onboard diagnos2. 02 691 209 02 691 303 02 691 209 Figure 5 with ABS on the air side 02 640 169 Rear wheel lockup only Best Choice 10 Medium Duty Isuzu FSR FTR FVR Aerial Lift Bucket Other Applications Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1999 2005 4 channel ABS 4 wheel disc Hydraulic booster 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 02 640 169 Mitsubishi Fuso Vehicle Application Interlock Applications Light Duty FE FG Aerial Lift Bucket OtherApplications Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1991 1998 Dual Figure 2 Drum 02 691 209 02 691 109 02 691 209 02 691 209 02 640 169 02 640 023 2000 2005 4 channel ABS F disc R drum Vacuum hydraulic 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 4 wheel disc booster 02 640 169 or 4 wheel drum Medium Duty FH Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1996 1998 Dual Figure 2 4 wheel drum Air Hydraulic boosters 02 691 201 02 691 101 02 691 201 02 691 101 02 640 169 02 640 023 2000 2004 4 channel ABS 4 wheel drum Hydraulic booster 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 02 640 169 Medium Duty FK FM MR FM HR Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Whee
3. Bucket Other Applications Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1967 1986 Dual Figure 2 F disc R drum Early models had 4 02 691 209 02 691 109 02 691 209 02 691 109 wheel drums 02 640 169 02 640 125 1987 1996 Rear ABS Figure 4 F disc R drum 02 691 209 02 691 109 02 691 209 02 691 109 02 640 169 02 640 125 1997 2003 Rear ABS Figure 4 F disc R drum 3 channel ABS 02 691 209 02 691 109 02 691 209 02 691 109 optional Figure 6 02 640 169 02 640 125 2004 2005 3 channel ABS Figure 6 4 wheel disc 02 691 305 02 691 109 02 691 305 02 691 109 02 640 169 02 640 125 E250 E350 F250 F350 8600 lb and above GVW Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1967 1986 Dual Figure 2 F disc R drum Early models had 4 02 691 209 02 691 109 02 691 209 02 691 109 wheel drum 02 640 169 02 640 125 1987 1998 Rear ABS Figure 4 F disc R drum 02 691 209 02 691 109 02 691 209 02 691 109 02 640 169 02 640 125 Super Duty Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1988 1998 Dual Figure 2 4 wheel disc 02 691 209 02 691 109 02 691 209 02 691 109 02 640 169 02 640 125 Super Duty E250 E350 F250 F350 Below 10 000 lb GVW Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wh
4. wheel lockup 1970 1987 Dual Figure 2 Drum Hydrovac 02 691 201 02 691 101 02 691 201 02 691 101 02 640 169 02 640 023 Medium Duty Series 4600 4900 s Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1988 1998 Dual Figure 2 4 wheel disc Hydraulic Boost M C 02 691 201 02 691 101 02 691 201 02 691 101 02 640 169 02 640 023 1999 2001 4 channel ABS 4 wheel disc 4 channel ABS standard 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 with option to delete 02 640 169 until 3 1 99 Medium Duty Next Generation Vehicle 4200 4400 Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 2002 2005 4 channel ABS 4 wheel disc 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 02 640 169 Medium Duty CF500 CF600 Cab Forward 16 000 19 500 lb GVW Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 2005 3 channel ABS 4 wheel disc 02 691 305 02 691 109 02 691 305 02 691 109 Figure 4 02 640 023 Kenworth Medium Duty T 300 Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 2001 2005 4 channel ABS 4 wheel disc 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 02 640 169 Peterbilt Medium Duty Model 330 Model Year Brake System Type Service Brakes Miscellaneous Notes
5. 2 640 125 1989 1993 Rear ABS Figure 4 F disc R drum Anti lock valve location at 02 691 209 02 691 109 02 691 209 02 691 109 rear axle makes it difficult 02 640 169 02 640 125 to install lock downstream from anti lock valve Single locks should go on front axle 1994 1998 Rear ABS Figure 4 F disc R drum 3 channel ABS Optional 02 691 209 02 691 109 02 691 209 02 691 109 Figure 6 1999 2005 3 channel ABS F disc R drum 3 channel ABS Standard 02 691 305 02 691 109 02 691 305 02 691 109 Figure 6 4 wheel disc on on 3500 optional on 02 640 125 D2500 D3500 1500 2500 in 2001 2005 MY With 4 channel ABS deleted brake system type is Dual Figure 2 NOTE Hydrovac Frame mount vacuum booster Hydraulic Boost M C Master cylinder driven by hydraulic booster powered by steering pump Front wheel lockup only On 3 channel ABS systems use 02 691 305 Rear wheel lockup only on 3 channel ABS Best Choice 691 Installation Kits for GM C4500 5500 Installation Kits include all major components for high quality consistent installations Locking front wheels only 02 603 006 Installation Kit Use with 02 691 209 Dual 691 Lock Locking rear wheels only 02 603 007 Installation Kit Use with 02 691 209 Dual 691 Lock Locking all four wheels 02 603 002 Installation Kit Use with 02 691 403 4 Channel 691 Lock 7 Ford Vehicle Application Interlock Applications Light Duty E150 E250 F150 F250 below 8600 lb GVW Aerial Lift
6. 4 Wheel 2 Wheel 4 Wheel 2 Wheel 2001 2005 4 channel ABS 4 wheel disc 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 02 640 169 Sterling Medium Duty Actera 5500 8500 Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 2001 2005 4 channel ABS 4 wheel disc 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 02 640 169 With 4 channel ABS deleted brake system type is Dual Figure 2 NOTE Hydrovac frame mount vacuum booster Hydraulic Boost M C Master cylinder driven by hydraulic booster powered by steering pump Front wheel lockup only Best Choice Rear wheel lockup only 9 Imported Truck Brake System Types hydraulic Dodge Freightliner Sprinter Vehicle Application Light Duty Van amp Cab chassis Aerial Lift Bucket Other Applications Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 2002 2005 4 channel ABS 4 wheel disc 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 02 640 169 General Motors W Series Chev Tiltmaster GMC Forward Vehicle Application Interlock Applications Light Duty W3500 4500 also W5500 through 1998 model year Aerial Lift Bucket Other Applications Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1986 1998 Dual Figure 2 Disc Drum Drum Vacuum Hydraulic 02 691 209 02 691 109 02
7. 691 209 02 691 109 booster 02 640 169 02 640 023 2000 2005 4 channel ABS F disc Vacuum Hydraulic 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 R drum booster 02 640 169 Medium Duty W5500 W5500HD Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 2000 3 channel ABS Disc Drum Drum Air Hydraulic boost 02 691 303 02 691 209 02 691 303 02 691 209 Figure 5 with ABS on the air side 02 640 169 2001 2005 4 channel ABS 4 wheel disc 4 channel ABS Vac Hyd 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 booster 05 HD is Hyd Hyd 02 640 169 Medium Duty WT5500 Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 2000 2004 3 channel ABS Disc Drum Drum Air Hydraulic boost 02 691 303 02 691 209 02 691 303 02 691 209 Figure 5 with ABS on the air side 02 640 169 Hino For recommendations on new HINO conventional cab models contact MICO Inc Vehicle Application Light Duty FA Aerial Lift Bucket Other Applications Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 2001 2004 3 channel ABS 4 wheel drum Vacuum Hydraulic 02 691 305 02 691 209 02 691 305 02 691 209 Figure 5 booster 02 640 169 Light Duty FB Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 2001 2004 3 c
8. Brake Lock Application Guide 2005 Many commercial vehicles as well as re creational and off highway vehicles require that they remain stationary while performing the functions for which they were designed Some of these vehicles are found in the In addition to a well maintained and adjusted mechanical parking brake experience has shown that in many uses additional supple mental holding is necessary This can be done in the form of wheel chocks out riggers or other means to keep all wheels that are in contact with the ground from moving util ity cable television vehicle recovery multi stop transit refuse recycling sanitation ground support and lawn care industries MICO Locks are for supplemental parking and are to be used in conjunction with a vehicle s mechanical parking brake They perform as an operational holding brake only and are not intended to be used for pro longed parking All MICO Brake Locks include low pressure warning switch s for added safety Several types of Brake Locks are available for use on single dual split or anti lock brake systems The Brake Lock you select will depend on the type of brake system on your vehicle Hydraulic Brake Locks Multi Stop Delivery Vehicles Service and Utility Vehicles In Plant and Warehouse Equipment Waste amp Recycling Vehicles Airport Support Vehicles Recreation Vehicles 2 MODELS 02 691 101 Single Brake Lock System BF
9. S use the 1998 recommendations Use the 2000 recommendations for trucks having ABS 11 691 Accessories Remote Reservoir Model 02 600 038 For use in BF applications MICO offers a remote reservoir for installations where the Power Unit brass breather plug cannot be kept upright and away from dust and dirt or when visual monitoring of fluid level is desired Remote Reservoir Assembly Connector 34 150 038 Tubing 10 ft 30 560 037 Connector 34 150 038 Adapter 34 050 045 Nut 30 300 044 691 Models and Sub Components System Model Number Description Power Unit Control Module Actuator User Interface Main Wire Harness 02 691 101 Single 1 3 4 20 410 014 32 585 006 20 460 013 32 585 007 32 820 021 02 691 109 Single 1 1 4 20 410 014 32 585 006 20 460 018 32 585 007 32 820 021 02 691 201 Dual 1 3 4 20 410 014 32 585 006 20 460 012 32 585 007 32 820 021 02 691 209 Dual 1 1 4 20 410 014 32 585 006 20 460 017 32 585 007 32 820 021 02 691 223 Dual 1 1 4 20 410 014 32 585 006 20 460 018 two 32 585 007 32 820 021 02 691 303 3 Channel 20 410 014 32 585 006 20 460 013 one 20 460 017 one 32 585 007 32 820 021 02 691 305 3 Channel 20 410 014 32 585 006 02 460 018 one 20 460 017 one 32 585 007 32 820 021 02 691 403 4 Channel 20 410 014 32 585 006 20 460 017 two 32 585 007 32 820 021 Consist of two 1 1 4 inch
10. diameter single actuator Consist of one 1 3 4 inch diameter single actuator and one 1 1 4 inch diameter dual actuator Consist of one 1 1 4 inch diameter single actuator and one 1 1 4 inch diameter dual actuator Consist of two 1 1 4 inch diameter dual actuators 7 16 20UNF 7 16 20UNF 37 Flare o 34 350 006 90 Elbow 34 350 011 45 Elbow 34 050 078 Straight Adapter 34 050 079 Straight Adapter 7 16 20UNF 7 16 20UNF 37 Flare o 7 16 20UNF 37 Seat o SAE 3 8 24 for 3 16 Line 7 16 20UNF 37 Seat o SAE 7 16 24 for 1 4 Line Elbow Fittings and Straight Adapters Simplify plumbing installation using 90 or 45 elbows and straight adapters available from MICO These fittings allow more direct routing of brake tubes with fewer bends and are handy when mounting compo nents in close quarters Wiring Harness Extension This 11 ft supplemental harness simplifies wiring when 691 Control Module is mounted away from Power Unit Contains waterproof adapters for quick connection of Control Module and Power Unit leads Model number 32 820 022 Form No 80 950 152 Revised 12 29 04 Printed in U S A MICO is a registered trademark of MICO Incorporated MICO is registered in the U S Patent and Trademark Office as well as in Australia Canada Great Britain Indonesia Japan Peoples Republic of China and South Korea MICO Incorporated MICO West Division 1911 Lee Boulevard Zip Code 56003 2507 701 East Franci
11. eck valves which lock fluid under pressure in the selected brakes Hand operation leaves the operator s feet free for clutch and gas pedal operation All Lever Locks include a low pressure warning switch Cable Lock Cable Locks are functionally the same as lever locks and twist locks The difference being a Cable Lock is cable operated for remote mountings when space under the dash is limited All Cable Locks include a low pres sure warning switch Dualock MODELS 02 640 169 Cable operated 3 16 amp 1 4 fittings in line mount includes 10 ft cable BF 02 640 202 Cable operated 3 16 amp 1 4 fittings in line mount includes 10 ft cable HO BF Brake Fluid HO Hydraulic Oil Dualocks are designed to supplement your standard parking brake by utilizing the hydraulic service brakes of a vehicle equipped with a dual or split braking system Dualocks can provide 4 wheel lockup for hydraulic dual brake systems or rear wheel ABS as well as 2 wheel lockup for hydraulic 3 and 4 channel ABS All Dualocks include two low pressure warning switches Lever Lock 4 TYPICAL DUAL SYSTEM Vertical Split Two independent braking systems One system leads to the front brakes and the other system to the rear brakes Identifying Features 1 Two lines from master cylinder 2 Combination valve used on some models Lock Position 1 Front axle 2 Rear axle 3 4 wheel Some imported vehicles use two separa
12. eel 1999 2000 Rear ABS Figure 4 4 wheel disc 3 channel ABS optional 02 691 209 02 691 109 02 691 209 02 691 109 Figure 6 02 640 169 02 640 125 2001 2005 3 channel ABS 4 wheel disc 02 691 305 02 691 109 02 691 305 02 691 109 Figure 6 02 640 125 Super Duty E350 E450 F350 F550 10 000 lb and above GVW Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1999 2005 3 channel ABS 4 wheel disc 02 691 305 02 691 109 02 691 305 02 691 109 Figure 6 02 640 125 Medium Super Duty F650 F750 23 000 lb GVW and over Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 2001 2005 4 channel ABS 4 wheel disc 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 02 640 169 Medium Duty F500 F800 Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1984 1999 Dual Figure 2 Drum or OEM spring apply rear NA 02 691 101 NA 02 691 101 disc drum parking brake standard NA 02 640 023 Use MICO Locks on front brakes only Medium Duty LCF Cab Forward 16 000 19 500 lb GVW Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 2005 3 channel ABS Figure 4 4 wheel disc 02 691 305 02 691 109 02 691 305 02 691 109 02 640 023 NOTE Hydrovac Frame mount vacuum booster Hydraulic Boost M C Master cylinder driven b
13. hannel ABS 4 wheel drum Air Hydraulic boost 02 691 303 02 691 209 02 691 303 02 691 209 Figure 5 with ABS on the air side 02 640 169 Medium Duty FD FF Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 2001 2004 3 channel ABS 4 wheel drum Air Hydraulic boost 02 691 303 02 691 209 02 691 303 02 691 209 Figure 5 with ABS on the air side 02 640 169 Conventional Cab 145 268 Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 2005 4 channel ABS 4 wheel disc Hydraulic Booster 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 02 640 169 Isuzu Vehicle Application Light Duty N Series Aerial Lift Bucket Other Applications Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1986 1998 Dual Figure 2 Disc Drum Drum Vacuum Hydraulic 02 691 209 02 691 109 02 691 209 02 691 109 02 640 169 02 640 023 2000 2005 4 channel ABS F disc R drum Vacuum Hydraulic 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 02 640 169 Medium Duty Isuzu FRR Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1988 1998 Dual Drum Air Hydraulic 02 691 209 02 691 109 02 691 209 02 691 109 Figure 2 02 640 169 02 640 023 2000 2004 3 channel ABS 4 wheel drum Air Hydraulic boost 02 691 303
14. isconnect Low Pressure Warning Switch Does not apply for 691 Brake Lock System 3 The 691 System must be used in combination with an audible or visual alarm to signal any loss of brake system pressure Do not disconnect vehicle horn visual alarm or Control Module alarm 4 All lines fittings and adjacent areas must be cleaned of dirt or road residue before any lines or fittings are disconnected Special care should be taken that dirt and road residue are not allowed to enter hydraulic brake system This could contaminate the system and interfere with proper operation of brakes and MICO locking devices 5 Follow procedures outlined in Vehicle Manufacturer s Service Manual or SAE Standards when making new connections or adding to existing brake systems Use only steel brake tubing conforming to SAE specifications 6 Use only proper system fluid conforming to latest SAE or DOT Standards Im proper or contaminated fluid may cause gummy deposits and softening and swelling of other rubber seals in the entire brake system Such a condition must be corrected immediately 7 Do not use sealants tapes teflon or cement compounds on any connections or fittings The sealants or compounds can contaminate the hydraulic brake system and interfere with the operation of brake components or MICO locking device 8 All fittings and connections must be in good condition and tightened to proper torque values as specified in the Installation and Service Instr
15. l 2 Wheel 1991 1998 Dual 4 wheel drum 02 691 201 02 691 101 02 691 201 02 691 101 Figure 2 02 640 169 02 640 023 1999 2005 3 channel ABS 4 wheel drum 3 channel ABS 02 691 303 02 691 209 02 691 303 02 691 209 Figure 5 Air hydraulic boost 02 640 169 w ABS on air side UD Light Duty 1200 1400 Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1990 1998 Dual Figure 2 4 wheel drum Vacuum hydraulic 02 691 209 02 691 109 02 691 209 02 691 109 booster 02 640 169 02 640 023 2000 2005 4 channel ABS F disc R drum Vacuum hydraulic 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 or 4 wheel disc booster 02 640 169 Medium Duty 1800CS 3000 Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1990 1998 Dual Figure 2 4 wheel drum Air Hydraulic boosters 02 691 201 02 691 101 02 691 201 02 691 101 On trucks with optional 02 640 169 02 640 023 air rear parking brake lock front brakes only 1999 2005 4 channel ABS 4 wheel drum Air Hydraulic boosters 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 On trucks with optional 02 640 169 air rear parking brake lock front brakes only Imported Truck Brake System Types hydraulic Best Choice Rear wheel lockup only NOTE 1999 was a transition year to ABS systems on most imported trucks If a 1999 model does not have AB
16. s Street Zip Code 91761 5514 P O Box 8118 North Mankato MN U S A 56002 8118 P O Box 9058 Ontario CA U S A 91762 9058 507 625 6426 Facsimile 507 625 3212 909 947 4077 Facsimile 909 947 6054 Web Site www mico com MICO could not possibly know of and give advice with respect to all conceivable applications in which these products might be used and the possible hazards and or results of each application MICO has not undertaken any such wide evaluation Therefore anyone who uses an application which is not recommended by the manufacturer first must completely satisfy himself that a danger will not be created by the application selected or by the particular model of our product that is selected for the application MICO has made every attempt to present accurate information in catalogs brochures and other printed material MICO can accept no responsibility for errors from unintentional oversights that may exist Due to a continuous program of product improvement materials specifications and product documentation are subject to change without notice or obligation 1 All MICO locking devices are supplemental safety equipment which provide additional brake holding action when used with existing vehicle parking brake 2 The Low Pressure Warning Switch must be used in combination with an audible or visual alarm to signal any loss of system pressure The Low Pres sure Warning Switch is explained in the Operating Instructions Do not d
17. sed both halves of system must be locked FIGURE 3 5 TYPICAL 4 CHANNEL ALL WHEEL ANTI LOCK SYSTEM Provides braking control by way of an independent channel for each front wheel and each rear wheel Identifying Features 1 Two lines from master cylinder to anti lock valve 2 Separate lines from anti lock valve to each of the front and rear wheels Lock Position 1 Front axle 2 Rear axle 1 amp 2 4 wheel NOTE Some 4 channel anti lock brake systems use two separate anti lock valves IMPORTED TRUCK 3 CHANNEL ALL WHEEL ANTI LOCK SYSTEM Provides braking control by way of independent anti lock channels for each rear wheel and a third channel for the front wheels Identifying Features 1 Three separate air hydraulic brake boosters 2 One line to front brakes 3 Separate lines to each rear wheel Lock Position 1 Front axle 2 Rear axle 1 amp 2 4 wheel NOTE The anti lock functions on air booster system not the hydraulic side FIGURE 5 TYPICAL 3 CHANNEL ALL WHEEL ANTI LOCK SYSTEM Provides braking control by way of independent anti lock channels for each front wheel and a third channel for both rear wheels Identifying Features 1 Two lines from master cylinder to anti lock valve s 2 One line from anti lock valve to rear brakes 3 Separate lines from anti lock valve to each front wheel Lock Position 1 Front axle 2 Rear axle 1 amp 2 4 wheel NOTE Some 3 channel anti lock brake sy
18. sing valve at 02 691 209 02 691 109 02 691 209 02 691 109 rear axle 02 640 169 02 640 125 1995 2002 3 channel ABS Figure 6 4 wheel disc No load sensing valve 02 691 305 02 691 109 02 691 305 02 691 109 at rear axle 02 640 125 Medium Duty C50 C65 Kodiak amp TopKick C4500 C8500 Conventional Cab T5500 T8500 Tilt Cab Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1970 mid 1980s Single Figure 1 Drum Hydrovac 02 691 101 02 691 101 02 691 101 02 691 101 02 640 023 02 640 023 1970 mid 1980s Dual Figure 2 Drum Hydrovac s 02 691 201 02 691 101 02 691 201 02 691 101 02 640 169 02 640 023 1970 mid 1980s 1 1 2 x 1 2 split Drum A dual brake lock is 02 691 201 02 691 201 02 691 201 02 691 201 Figure 3 required for either 02 640 023 rear or 4 wheel lockup mid 80s 1996 Dual Figure 2 4 wheel disc Hydraulic Boost 02 691 201 02 691 101 02 691 201 02 691 101 Master Cylinder 02 640 169 02 640 023 1997 2005 4 channel ABS 4 wheel disc 4 channel ABS Standard 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 Option to delete was 02 640 169 available prior to 3 1 99 Dodge Light Duty D100 D350 Ram 1500 3500 Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel mid 70 s 1988 Dual Figure 2 F disc R drum 02 691 209 02 691 109 02 691 209 02 691 109 02 640 169 0
19. stems use two separate anti lock valves FIGURE 6 FIGURE 7 TYPICAL REAR WHEEL ANTI LOCK SYSTEM Dual Vertical Split Two independent braking systems One system leads to the front brakes and the other system to the rear brakes Identifying Features 1 Two lines from master cylinder 2 Anti lock control valve between master cylinder and rear wheels Lock Position 1 Front axle 2 Rear axle 3 4 wheel FIGURE 4 6 Domestic Truck Brake System Types hydraulic Chevrolet GMC Vehicle Application Interlock Applications Light Duty C K10 30 C K1500 3500 Aerial Lift Bucket Other Applications Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1967 1987 Dual Figure 2 F disc R drum Early models had 4 02 691 209 02 691 109 02 691 209 02 691 109 wheel drums 02 640 169 02 640 125 1988 1994 Rear ABS F disc R drum 02 691 209 02 691 109 02 691 209 02 691 109 Figure 4 02 640 169 02 640 125 1995 2005 3 channel ABS F disc R drum 02 691 305 02 691 109 02 691 305 02 691 109 Figure 6 02 640 125 3500HD All models have Hydraulic Boost M C s Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1990 1992 Dual Figure 2 4 wheel disc Load sensing valve at 02 691 209 02 691 109 02 691 209 02 691 109 rear axle 02 640 169 02 640 125 1993 1994 Rear ABS Figure 4 4 wheel disc Load sen
20. te air boosted master cylinders Different Brake Systems The typical hydraulic braking systems in use today vary depending on manufacturer and size of vehicle For in stance a vehicle equipped with a single system may have a firewall mounted booster or possibly a frame mounted remote booster The same holds true for the dual and split systems The rear wheel anti lock system is a dual brake system with an anti lock valve installed All wheel anti lock systems are defined as 3 channel or 4 channel systems Check the number of outlet lines from the anti lock control valve To be absolutely sure which braking system your vehicle is equipped with check it Look for identifying features such as dual flex lines at rear axle or front wheels number of master cylinder lines anti lock valve s etc Then compare with circuits shown here TYPICAL SINGLE SYSTEM One single hydraulic system serving both front and rear brakes Identifying Feature 1 One line from master cylinder Lock Position 1 Front axle 2 Rear axle 3 4 wheel FIGURE 1 FIGURE 2 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 Features 1 Two lines from master cylinder 2 Single hose to each front wheel 3 Two hoses to rear axle Lock Position 1 Front axle 2 Rear axle 3 4 wheel CAUTION If position 2 or 3 is u
21. tic LED s The new Control Module is waterproof provides improved durability and is easier to mount and wire Factory installed weath erproof connectors reduce the time and complexity of wiring the system The 691 Brake Lock significantly enhances vehicle holding capability while not interfering with normal service brake function Main Wire Harness User Interface Control Module Dual Actuator Single Actuator Power Unit See chart with 691 Models and Sub Components on page 11 3 MODELS 03 640 075 Twist Lock 3 16 amp 1 4 fittings BF 03 640 076 Twist Lock 3 16 amp 1 4 fittings HO BF Brake Fluid HO Hydraulic Oil Twist Lock Twist Locks are functionally the same as lever locks The differences being a Twist Lock has a rotary action handle and the push rod is sealed and lubricated in silicone grease for tough environmental applications All Twist Locks include a low pressure warning switch MODEL 02 640 023 Cable Lock 3 16 amp 1 4 fittings includes 10 ft cable BF 02 640 122 Cable Lock includes 10 ft cable HO BF Brake Fluid HO Hydraulic Oil MODELS 02 640 125 Lever Lock 3 16 amp 1 4 fittings BF 02 640 126 Lever Lock 3 16 amp 1 4 fittings HO BF Brake Fluid HO Hydraulic Oil Lever Locks are designed to supplement your standard parking brake by utilizing the hydraulic service brakes They are manually operated one way ch
22. uctions 9 Separate models of MICO locking device brake components cylinders and all fittings must be routinely inspected for leaks damage or wear Adequate fluid levels must be maintained In the event of any loss of fluid brake system must be carefully inspected for leaks 10 Brake hoses brake lines MICO locking device brake components cylinders and all fittings must be routinely inspected for leaks damage or wear Ade quate fluid levels must be maintained In the event of any loss of fluid brake system must be carefully inspected for leaks 11 After installation bleed system according to vehicle manufacturer s recom mendations 12 Follow INSPECTIONS and TESTS section as outlined in the Operating Instructions 13 The self adhesive warning s accompanying each MICO locking device must be affixed in cab in view of operator 14 The Operating Instructions must be placed in cab of vehicle in a place avail able to operator
23. y hydraulic booster powered by steering pump Best Choice Front wheel lockup only On 3 channel ABS systems use 02 691 305 NA Not applicable Domestic Truck Brake System Types hydraulic Rear wheel lockup only on 3 channel ABS for front wheel only lockup use 02 691 223 NOTE Contact MICO for information on a 691 Installation Kit for Ford F450 F550 Rear wheel lockup only 8 Domestic Truck Brake System Types hydraulic Freightliner Vehicle Application Interlock Applications Medium Duty Business Class F50 F80 Business Class M2 MT35 MT55 Aerial Lift Bucket Other Applications Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1991 1996 Dual Figure 2 4 wheel disc Hydraulic Boost M C 02 691 201 02 691 101 02 691 201 02 691 101 02 640 169 02 640 023 1997 2005 4 channel ABS 4 wheel disc 4 channel ABS standard 02 691 403 02 691 209 02 691 403 02 691 209 Figure 7 with option to delete 02 640 169 until 3 1 99 International Navistar Medium Duty S1600 S1800 Loadstar Model Year Brake System Type Service Brakes Miscellaneous Notes 4 Wheel 2 Wheel 4 Wheel 2 Wheel 1970 1987 Single Figure 1 Drum Vacuum hydraulic 02 691 101 02 691 101 02 691 101 02 691 101 02 640 023 02 640 023 1970 1987 1 1 2 x 1 2 Drum A dual brake lock is 02 691 201 02 691 201 02 691 201 02 691 201 Figure 3 required for either 02 640 023 rear or 4
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