Electric-over-Hydraulic & Disc Brakes

EOH actuators, hydraulic disc brakes, bleeding and service.

Lessons

1. 01Trace the Electrical Command and Hydraulic Braking ActionDistinguish actuator operation, floating-caliper action, and fixed-caliper action before selecting service information.
2. 02Diagnose Slow Response and a Nonrunning ActuatorSeparate hydraulic air, wiring capacity, controller adjustment, supply voltage, and grounding faults.
3. 03Use Breakaway Testing to Isolate Actuator FaultsInterpret actuator operation and pressure buildup during the documented breakaway test without extending its diagnostic limits.
4. 04Prepare Safely and Evaluate Rotor ConditionEstablish safe access and inspect rotor and mounting conditions before replacing disc-brake components.
5. 05Replace a Floating Caliper Without Losing Installation ControlFollow the small floating-caliper replacement sequence while preserving bleeder orientation, fastener preparation, and hydraulic completion.
6. 06Install Fixed-Caliper Pads and Retaining HardwareOrient the pads correctly and assemble the retaining bolt, anti-rattle spring, tension clip, and locknut for the covered fixed-caliper design.
7. 07Control Fixed-Caliper Line Routing and Production DifferencesUse the applicable caliper layout to position the bleeder, crossover line, remote inlet, and supports without interference.
8. 08Separate Slip-On Rotor Work from Hub-and-Rotor RemovalChoose the rotor-removal path that matches the assembly while preserving hydraulic connections and verifying final clearance.
9. 09Replace Clip-On Pads and Protect Slider SealsUse the clip-on pad kit's retention method while inspecting sliding components and preventing O-ring damage.
10. 10Maintain Caliper Bushings and Complete Wheel InstallationRecognize rotor-grooving clues, preserve bushing lubricant compatibility, and finish service with controlled wheel-fastener tightening.