Quarry Haul Truck Pre-Shift MSHA Inspection Checklist

A quarry haul truck pre-shift inspection under MSHA Part 56 is not a formality — it is a federal legal requirement that protects operators from catastrophic equipment failures in one of mining's most hazardous environments. Cement quarry haul trucks operating 24-hour production cycles carry loads exceeding 100 tonnes on grades up to 15%, where brake failure, tire blowout, or lighting deficiency can be fatal within seconds. MSHA Part 56.14100 mandates that equipment with safety defects be removed from service immediately, and Part 56.14132 requires that brakes be examined every shift — making a structured pre-shift checklist the primary compliance instrument between your operation and a citation. Operators who complete and sign a documented pre-shift inspection every shift, with findings entered in a CMMS against the truck asset ID, create the citation-prevention paper trail that regulators require during inspections. Sign Up Free on Oxmaint to digitise your MSHA pre-shift records and maintain a complete, audit-ready inspection history for every truck in your quarry fleet.

MSHA citations average $1,800 per violation — and a single brake or lighting deficiency found by an inspector rather than your operator means both the citation and the liability. Oxmaint puts the pre-shift checklist on every operator's phone and records every finding, sign-off, and defect against the truck VIN and shift timestamp.

56.14100

MSHA Part 56

Equipment defects — remove from service immediately

Every Shift

Brake Examination Frequency

MSHA Part 56.14132 — no exceptions for haul trucks

$1,800+

Avg MSHA Citation Cost

Per violation — plus production downtime and legal exposure

15 min

Pre-Shift Inspection Time

Structured walk-around with CMMS sign-off, every shift

Phase 01 — Brake System

Brake System Examination — MSHA Part 56.14132

The brake system is the single most safety-critical system on a quarry haul truck and the most frequently cited MSHA deficiency. Service brakes, secondary brakes, and the parking brake must each be independently verified every shift. A haul truck descending a 15% grade at 40 km/h with a 100-tonne load has approximately 180 metres of stopping distance under full service brake application — any degradation in braking performance on a quarry ramp is a fatality risk with zero margin.

Brake System Components — Pre-Shift Verification Points

Service Brakes

Full pedal application — firm resistance

No pull left or right under braking

Brake warning light — not illuminated

SEC

Secondary / Emergency

Secondary brake hold on grade — verified

Retarder function operational if equipped

No brake fault codes in cab display

Parking Brake

Hold on flat and inclined surface

Indicator lamp functional in cab

Release mechanism operates freely

HYD

Hydraulic / Air System

Reservoir level within operating range

No visible leaks under truck at rest

Air pressure builds to rated PSI within spec time

Brake System Checklist MSHA 56.14132

Test service brakes at walking speed before entering haul road Drive the truck at walking speed (5 km/h) in the yard and apply full service brake. Pedal should be firm with no sponginess. Truck must stop in a straight line with no pulling. Any soft pedal, excessive travel, or pulling requires the truck to be tagged out before entering the haul road. Record: Pass/Fail, Pedal feel description, Stopping behaviour

Verify secondary/emergency brake holds truck stationary on haul road grade Position the truck on the steepest available grade. Apply only the secondary brake and release service brakes. Truck must remain stationary. For trucks equipped with retarder, verify retarder engages under deceleration during light movement. Record: Grade tested (%), Hold confirmed (Yes/No)

Check brake fluid/air reservoir level and inspect for leaks under truck Inspect under the truck at all four wheel positions for brake fluid or air line leaks. Check hydraulic reservoir level against the marked MIN/MAX on the sight glass. For air brake trucks, allow system to build to full pressure and record time from first start — must meet OEM specification. Record: Reservoir level, Leaks found (Yes/No), Air build time (sec)

Confirm no brake warning lamps active in cab before departure With engine running and system at full pressure, verify the instrument panel shows no brake fault or low-pressure warning lamps. Active warning lamps must be investigated before the truck moves under its own power onto the haul road. Record: Warning lamps status, Any fault codes present

Phase 02 — Tires and Running Gear

Tire and Running Gear Inspection

Quarry haul truck tires represent a per-unit cost of $15,000–$40,000 and are the most common cause of unplanned downtime. On rock surfaces with quarry fines and oversize material, sidewall damage, bead seating failures, and heat buildup from under-inflation are daily risks. A blown haul truck tire on a loaded ramp descent causes instant loss of directional control — making pre-shift tire inspection an MSHA-supported critical safety task regardless of whether a specific regulation names it explicitly.

Pressure Check

Cold inflation pressure — all positions

Maximum deviation: 5% from spec

Record PSI at each wheel position

Required Every Shift

Visual Inspection

Sidewall cuts, bulges, or cord exposure

Tread depth and chunking on drive axle

Bead seating — no gap at rim flange

Required Every Shift

Wheel Hardware

Lug nut condition — no missing or loose

Rim condition — no cracks at bolt holes

Hub seal leaks — no oil at wheel face

Defect = Tag Out

Heat Assessment

IR temperature if re-starting after run

Above 80°C tread surface — do not move

Identify heat source before returning to service

Defect = Tag Out

Tire and Running Gear Checklist MSHA 56.14100

Check cold inflation pressure at all wheel positions against OEM specification Using a calibrated truck tire pressure gauge, check each wheel position before the truck has moved (cold reading). Record actual PSI and compare to the OEM-specified inflation pressure for the load rating. Any tire below 5% of specified pressure must be inflated before the shift starts. Record: PSI at each position (front L/R, rear L/R inner/outer)

Inspect all tire sidewalls and treads for cuts, bulges, or cord exposure Walk the full circumference of each tire, inspecting the sidewall and tread face under adequate lighting. Cord exposure of any length, sidewall bulging, or cuts deeper than the groove depth are immediate tag-out conditions under MSHA 56.14100. Note: even small cuts in quarry conditions grow rapidly from rock pinch and flexing. Record: Any defects found with position and description

Check all lug nuts for presence and visual tightness on all wheel positions Walk each wheel and visually verify all lug nuts are present and show no sign of backing off (paint marks misaligned, rust tracking, or visible gap at face). Missing lug nuts are an immediate defect. On dual rear wheels, check inner wheel lug nuts using an inspection mirror if outer wheel obstructs access. Record: All positions checked, Any missing or suspect nuts

Phase 03 — Lights, Signals, and Safety Devices

Lighting, Signals, Backup Alarm, and Safety Device Verification

MSHA Part 56.14130 requires that all lights and signals be functional. In a cement quarry operating night shifts, dust-obscured conditions, and narrow haul roads where multi-tonne trucks pass within metres of each other, a single failed reverse alarm or inoperative headlight is a collision risk. The backup alarm is the most frequently cited lighting and signals deficiency in quarry inspections — and one of the easiest to verify in under two minutes during pre-shift.

Device	Test Method	MSHA Requirement	Defect Action
Backup Alarm	Engage reverse — audible at 20m	56.14132 — required on all equipment	Immediate tag-out
Headlights	High and low beam function check	56.14130 — lights required in low visibility	Immediate tag-out for night ops
Brake Lights	Observe from rear during pedal press	56.14130 — operational signals required	Repair before shift
Turn Signals	All four corners — visual check	56.14130 — directional signals required	Repair before shift
Strobe / Beacon	Power on — rotation or flash confirmed	Plant SOP — required in quarry operations	Repair before shift
Horn	Single press — audible at proximity	56.14130 — warning device required	Repair before shift

Lights, Signals, and Safety Device Checklist MSHA 56.14130

Test backup alarm — audibility at 20 metres from rear of truck Engage reverse gear with a second person standing 20 metres behind the truck. Backup alarm must be clearly audible above normal quarry ambient noise levels. A faulty backup alarm is the most frequent MSHA citation on haul trucks and is an immediate tag-out condition. Record: Alarm audible at 20m (Yes/No), Condition notes

Check all external lights — headlights (high/low), brake lights, turn signals, beacon Walk the truck exterior while a second operator cycles headlights (high and low), brake lights, and all four turn signals from the cab. Check the roof beacon or strobe for rotation/flash. Inoperable lights on trucks used in night operations or low-visibility dust conditions are tag-out conditions. Record: Each light position status, Any failed units

Verify horn, seat belt, and ROPS/FOPS cab structure for visible damage Sound the horn once to confirm functionality. Inspect seat belt for fraying, buckle function, and retractor operation. Visually inspect the ROPS/FOPS cab structure for any cracks, deformation, or weld failures at roll bar joints — any structural damage is an immediate tag-out requiring engineering assessment before returning to service. Record: Horn (Pass/Fail), Seat belt condition, ROPS visual (Pass/Fail)

Phase 04 — Engine, Fluids, and Operator Cab

Engine Compartment, Fluid Levels, and Cab Inspection

Engine and fluid deficiencies on a quarry haul truck cause the majority of unplanned mid-shift breakdowns — which in quarry operations means a loaded truck stranded on a haul road grade with production queued behind it. A 10-minute engine compartment check at shift start prevents the 4-hour recovery and tow that a connecting rod failure or catastrophic coolant loss produces on a grade.

Engine, Fluids, and Cab Checklist MSHA 56.14100

Check engine oil, coolant, hydraulic fluid, and transmission fluid levels With engine off and truck on level ground, check all fluid levels. Engine oil dipstick must read between MIN and MAX. Coolant reservoir must be at the marked cold fill line. Hydraulic fluid level must be within the sight glass operating band. Any fluid below minimum is a defect — do not start the shift until corrected. Record: All fluid levels (OK/Low/Critical)

Inspect engine bay for fluid leaks, damaged hoses, and loose electrical connections Open the engine hood and visually inspect all hose connections for seepage, all high-pressure hydraulic lines for chafing or spray marks, and electrical harnesses for bare wires or connector corrosion. Any active leak at start is a defect. Note: hydraulic spray from a failed high-pressure hose creates immediate fire risk in the engine bay. Record: Leak type and location if found, Hose and electrical condition

Inspect fire suppression system charge indicator and nozzle condition if fitted Check the fire suppression system pressure gauge (if fitted) for correct charge pressure in the green band. Visually inspect discharge nozzles in the engine bay for blockage or damage. A discharged or partially discharged fire suppression system on a quarry haul truck must be reported and recharged before the shift. Record: System charge status, Nozzle condition

Check cab warning lights, gauges, and display systems on engine start Start the engine and observe all warning lamp self-test cycle. After self-test, no warning lamps should remain illuminated during idle. Record active fault codes from the diagnostic display if equipped. Gauges for oil pressure, coolant temperature, and alternator charge must show normal operating values within 2 minutes of start. Record: Active warning lamps after start-up, Fault codes if present

Every MSHA pre-shift inspection completed without a signed CMMS record is an undocumented inspection — legally equivalent to no inspection at all. Oxmaint captures operator sign-off, defect photos, and truck asset ID on every pre-shift, giving you the inspection audit trail that MSHA inspectors look for and that protects your operators.

Reference Table

Quarry Haul Truck Pre-Shift — Inspection Parameters and MSHA Requirements

Inspection Item	Method	Frequency	Defect Action	MSHA Reg
Service Brakes	Physical test at walking speed	Every shift	Immediate tag-out	56.14132
Secondary/Emergency Brake	Hold on grade — verified	Every shift	Immediate tag-out	56.14132
Parking Brake	Hold on flat and grade	Every shift	Immediate tag-out	56.14132
Tire Pressure — All Positions	Calibrated gauge	Every shift	Inflate before departure	56.14100
Tire Sidewall / Tread	Visual walk-around	Every shift	Cord exposure = tag-out	56.14100
Backup Alarm	Engage reverse — 20m audibility	Every shift	Immediate tag-out	56.14132
Headlights / Brake Lights	Visual — all positions	Every shift	Tag-out for night/dust ops	56.14130
Engine Fluid Levels	Dipstick / sight glass	Every shift	Top up before departure	56.14100
Fire Suppression Charge	Gauge — green band	Every shift	Recharge before shift	56.14100
ROPS/FOPS Structural Condition	Visual inspection	Every shift	Immediate engineering review	56.14130

FAQs

Frequently Asked Questions — MSHA Haul Truck Pre-Shift Inspection

What does MSHA Part 56.14132 require for haul truck brake examinations?

MSHA Part 56.14132 requires that self-propelled mobile equipment used in surface mining operations be examined at the start of each shift by a competent person. Brakes must be tested to confirm they function correctly. Any equipment found to have defective brakes must be removed from service immediately and not returned until repaired. Track brake exam records in Oxmaint.

What happens if a haul truck is operated with a defective backup alarm in a quarry?

Operating a haul truck with a non-functioning backup alarm is an MSHA violation under Part 56.14132. An MSHA inspector finding this deficiency can issue a citation with penalties up to $15,625 for significant and substantial violations, and can order the equipment removed from service immediately. The citation also creates employer liability if a subsequent incident occurs. Book a demo to see how Oxmaint prevents missed pre-shift checks.

How should defects found during a haul truck pre-shift inspection be documented?

Every defect must be recorded in writing against the truck asset ID, with the shift time, operator name, defect description, and disposition (repaired, tagged out, or supervisor notified). CMMS-based records with photo attachments provide the most defensible documentation format for MSHA inspections and are retrievable immediately during an inspector visit.

Who is responsible for completing the MSHA pre-shift inspection on a quarry haul truck?

The operator assigned to the truck for that shift is responsible for completing the pre-shift inspection before the truck enters the haul road. The supervisor is responsible for ensuring the inspection was completed and documented. Both can receive citations if inspections are not performed and a deficiency is later found by an MSHA inspector during a workplace examination.

How does a CMMS improve MSHA pre-shift compliance at cement quarries?

A CMMS like Oxmaint creates a mandatory digital workflow where operators cannot mark a shift as started without completing and signing the pre-shift checklist. Every inspection is time-stamped, tied to the operator ID and truck asset, and immediately visible to supervisors. During MSHA inspections, the complete inspection history is retrievable in seconds. Sign Up Free to build this system in Oxmaint.

Put the MSHA Pre-Shift Checklist on Every Operator's Phone. Capture Every Defect. Build the Audit Trail That Protects Your Operation.

Oxmaint turns your paper MSHA pre-shift form into a mobile-first digital workflow — operator sign-off, defect photos, brake test confirmation, and tag-out flagging, all linked to the truck VIN and shift timestamp. Stop managing MSHA compliance with paper forms. Start with a system that proves compliance before an inspector asks for it.