Veh brake system compliance checks

Skill x3fleetsafety/skills/skills/veh-brake-system-compliance-checks

Use this skill for vehicle brake system inspection requirements. Covers daily DVIR, weekly maintenance, brake adjustment check, and the 'percent of out-of-adjustment' rule.From its SKILL.md

Install

npx -y skills add x3fleetsafety/skills --skill veh-brake-system-compliance-checks

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

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SKILL.md

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Brake System Compliance Checks

Brake system is the #1 cited area in roadside inspections. § 393.40 sets construction standards; § 396.3 and § 396.17 set maintenance and inspection.

What brake checks must occur

Pre-trip (§ 392.7) — every trip
Post-trip (DVIR) (§ 396.11) — every duty day
Annual inspection (§ 396.17) — comprehensive
Periodic inspection between annuals — carrier's program (typically every 30-90 days)

Pre-trip brake check

Air pressure builds + holds (governor cuts off ~120 psi)
Brakes work in service position
Brakes work in spring (parking) position
Brake light functioning
Air drained from tanks weekly

DVIR triggers for brakes

Reduced braking distance
Pulling to one side
Squealing or grinding
Air loss
Brake light malfunction

Annual inspection brake requirements

Each axle brake performance test
Slack adjuster check (within tolerance per FMCSA Appendix G)
Brake hose and tubing integrity
Brake shoe + drum measurements
Wheel-end inspection for leaks

Out-of-adjustment rule

A brake is considered "out of service" if more than 20% of brakes on a vehicle are out of adjustment. Compass + maintenance log should track this.

Common brake violations

Slack adjuster out of tolerance
Brake hose contact with another component
Brake shoe excessive wear
Air pressure cutoff issues
Anti-lock brake malfunction lamp on

Compass tracking

Compass Vehicles module:

Tracks annual inspection completion + next due
Flags vehicles with documented brake issues
Calculates carrier's brake-violation rate vs peer group

CFR citations

49 CFR § 396.3
49 CFR § 396.17
49 CFR § 393.40

How Compass surfaces this

Searchable in Compass Ask. Runs against carrier fleet data when invoked from the relevant tracker. Read-only; no actions without explicit user approval.

Built by X3 Compass

The AI-powered DOT compliance platform for fleets 1–100 power units. Try a 7-day free trial — no credit card required — at https://x3compass.com/?utm_source=skill&utm_medium=github&utm_campaign=veh-brake-system-compliance-checks

X3 Compass turns these skills into a complete operational platform: driver qualification files, drug & alcohol consortium, MVR pulls, hours-of-service tracking, hazmat shipping, IFTA filing, FMCSA audit prep, and DataQ dispute drafting — all CFR-cited, all in one place.

This skill is published under the X3 Compass open skills initiative. Contributions welcome at https://github.com/x3fleetsafety/skills

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.