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Summary of Contents for Roadmaster Invisibrake 8700
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Page 2: Table Of Contents
InvisiBrake specifications Table of contents Controller height ..........2¾ inches Components .............. 1 Controller width ...........8¾ inches Towed vehicle wiring diagram ........2 Controller length ..........8¾ inches Verify the application ..........3 Voltage ............12 volts DC General warnings and cautions ......... 4 Fuse size ............ -
Page 3: Components
Components part number description 1 945201-00 ..InvisiBrake controller, complete (Components not shown to scale) 2 452109 ....cable only 3 452109-10 ..air cylinder only 4 452104-10 ..pulley only 5 452140 ....cable anchor bracket 6 945202-00 ..brake pedal clamp (with mounting nuts and bolts) 7 450008 .....monitor wire patch cord 8 450008-15 ..car side monitor wire, 15 feet long (not shown) -
Page 5: Verify The Application
• If the diodes are single terminal (as shown below), that could make noise. Have an assistant pump the ROADMASTER recommends replacing them with ‘two brakes several times while you listen carefully under terminal in, one terminal out' diodes (as shown be- the hood. -
Page 6: General Warnings And Cautions
General warnings and cautions 1. The controller, pulley, cable anchor bracket, cable Use the included wire ties to secure the wiring housing clamps and the air cylinder are attached with out of the way. self-tapping screws. Before attaching these parts, make Wiring exposed by moving parts, sharp edges or certain that the screws will not damage any compo- hot components may cause a short circuit, which... -
Page 7: Installation Instructions
Plan the installation CAUTION Note: the mounting locations of the controller, pulley and air cylinder are dependent on each other — where Check the seat movement and adjustments. you choose to attach one affects the mounting loca- If the InvisiBrake controller is installed under one tions of the other two. - Page 8 Plan the installation directly in line with each other. 1. Position the pulley in line with the brake pedal arm's continued from preceding page cessible, to an appropriate power source which will be direction of travel — see Figure 2. energized when towing).
- Page 9 Plan the installation cable aligns directly to the center of the pulley wheel (Figure 5). continued from preceding page If the vehicle is equipped with brake pedal pre- If the cable is not directly in line to the center sets, install the cable and brake pedal clamp as- of the pulley wheel it may be pulled off the wheel sembly with the brake pedal as close to the driver’s at any time while the vehicle is being driven or...
- Page 10 (Figure 7) is avail- able from ROADMASTER. • The pulley will be attached with four 5/16" self- tapping screws. Make certain that the screws will not damage any components or electronics on the other side of the firewall.
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Page 11: Begin The Installation
Begin the installation — attach the brake pedal clamp; attach the pulley; attach the cable anchor bracket Note: do not attach any component until you have 4. Make certain that no part of the brake pedal clamp, chosen mounting locations for the controller, pulley and and/or the two Allen head bolts, will interfere with the air cylinder —... -
Page 12: Adjust The Cable
Attach the cable anchor bracket ward until the ball at the end of the cable is clearly visible, as shown in Figure 9. This will allow 1/4" of continued from preceding page free play in the cable. CAUTION 3. With two of the 3/8" self-tapping screws, attach Do not allow sharp bends near the cable anchor the cable anchor bracket. -
Page 13: Attach The Vacuum Line
Attach the vacuum line able force will be required to apply the brakes and Note: the vacuum line is used on vehicles with vac- uum-assisted power brakes. If the vehicle has a full- braking distance will be subsequently lengthened, time (“active”) power braking system it will not have a which may cause property damage, personal in- power brake booster (Figure 13). -
Page 14: Check The Existing Lighting
766) and stop light switch kits for most popular towed from activating. If the towed vehicle separates, the vehicles are available through ROADMASTER. brakes will not be applied, which may cause prop- erty damage, personal injury or even death. -
Page 15: Attach The Four-Wire Flat Harness; Attach The Controller
2. Route the harness to the vehicle's aftermarket tow Note: the following wiring instructions are based on a typical connection from the motorhome. For other light harness. wiring applications, contact ROADMASTER. 3. Find a convenient point to attach the wires to the aftermarket tow light harness. CAUTION With a test light, identify the ground, right turn, left If the towed vehicle’s turn signals, taillights and... -
Page 16: Install The Monitor System
Attach the controller continued from preceding page flanges (Figure 18) is attached to the controller. Slide the flange under the carpet. Repeat for the remaining side; with a pair of pliers bend this flange down 45º and slide it under the car- pet. - Page 17 Install the monitor system 8. With one or more wire ties, attach the audio signal circuit board (Figure 20) to the underside of the dash, continued from preceding page the vacuum line, cable housing and the electrical wiring as close to the LED as possible. from the controller.
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Page 18: Test The System
Test the system; evaluate the brake pressure setting Test drive the motorhome must refer to the “Troubleshooting” section in the Drive the motorhome for a short distance, making a owner’s manual and repair the fault before towing. few stops. Get a good feel for the motorhome's brak- ing ability. -
Page 19: Test The System
Test the system; brake failure, resulting in property damage, per- evaluate the brake pressure setting sonal injury or even death. continued from preceding page • Brake pressure set too high — a sharp pull at Finish the installation the motorhome indicates that the brake pressure is set The installation and tests are complete. - Page 20 — — advertisement Towed vehicle protection Protect your towed vehicle’s finish, headlights and windshield against damage with these two ROADMASTER products! Made in the U.S.A. pictured: 4700 Tow Defender U.S. patent number 8,708,369 A bumper-to-bumper blanket of protection! The Tow Defender's all-weather, heavy-duty screen...
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