| Step | Potential Hazard | Control |
|---|---|---|
| Park vehicle safely and assess location | Struck by passing traffic, poor lighting, unstable shoulder, rollaway | Pull as far off road as possible, choose firm and level ground, activate hazard lights, use headlights or work lights, apply parking brake |
| Deploy traffic control devices | Vehicle impact, low visibility, distracted motorists | Set cones or flares behind vehicle, wear high visibility vest, position warnings far enough back to alert drivers |
| Chock wheels and stabilize vehicle | Rollaway, shifting vehicle | Use wheel chocks on opposite side from flat tire, ensure parking brake is set, avoid working on soft or sloped surfaces |
| Loosen lug nuts prior to lifting vehicle | Tool slip, hand injuries, strain | Use correct wrench size, maintain balanced stance, loosen nuts only slightly before lifting |
| Position jack and raise vehicle | Jack failure, vehicle drop, body injury | Use approved jack points, set jack on firm base, never crawl under vehicle, use jack stands if possible |
| Remove lug nuts and wheel | Dropped wheel, pinch points, back strain | Keep body clear of wheel path, lift with legs, roll wheel rather than carrying |
| Inspect replacement tire or spare | Damaged tire, improper fit, roadside debris | Check for damage or low pressure, verify correct wheel size |
| Install wheel and hand tighten lug nuts | Cross threading, dropped wheel, pinch points | Align wheel properly, hand start all nuts to prevent cross threading |
| Lower vehicle and torque lug nuts | Improper torque, tool slip, vehicle movement | Lower vehicle slowly, torque nuts using star pattern, follow manufacturer torque specification |
| Stow tools and remove traffic devices | Trip hazards, struck by traffic | Gather tools and wheel safely, remove cones or flares once clear of traffic, maintain situational awareness |
| Reenter traffic | Collision hazard | Use signals, wait for safe gap in traffic, accelerate smoothly |
High visibility vest or Class 3 roadway garment
Safety glasses
Mechanic gloves
Steel toe boots
Hearing protection when using impact tools
Weather appropriate clothing
Always have a complete, well-stocked first aid kit available.
JSA Category: General Maintenance and Shop Operations
* The steps, hazards, and controls displayed above may be incomplete or not suit your department's needs. All job safety analyses should be a completed with frontline worker input to ensure that each potential hazard is identified and mitigated.
Please read about The Essentials Elements of a Solid Job Safety Anaylsis here.
Thank you to our primary sponsor, Roadwurx, which is a simple asset management platform for small public works and road departments.
| Step | Potential Hazard | Control |
|---|---|---|
| Park vehicle safely and assess location | Struck by passing traffic, poor lighting, unstable shoulder, rollaway | Pull as far off road as possible, choose firm and level ground, activate hazard lights, use headlights or work lights, apply parking brake |
| Deploy traffic control devices | Vehicle impact, low visibility, distracted motorists | Set cones or flares behind vehicle, wear high visibility vest, position warnings far enough back to alert drivers |
| Chock wheels and stabilize vehicle | Rollaway, shifting vehicle | Use wheel chocks on opposite side from flat tire, ensure parking brake is set, avoid working on soft or sloped surfaces |
| Loosen lug nuts prior to lifting vehicle | Tool slip, hand injuries, strain | Use correct wrench size, maintain balanced stance, loosen nuts only slightly before lifting |
| Position jack and raise vehicle | Jack failure, vehicle drop, body injury | Use approved jack points, set jack on firm base, never crawl under vehicle, use jack stands if possible |
| Remove lug nuts and wheel | Dropped wheel, pinch points, back strain | Keep body clear of wheel path, lift with legs, roll wheel rather than carrying |
| Inspect replacement tire or spare | Damaged tire, improper fit, roadside debris | Check for damage or low pressure, verify correct wheel size |
| Install wheel and hand tighten lug nuts | Cross threading, dropped wheel, pinch points | Align wheel properly, hand start all nuts to prevent cross threading |
| Lower vehicle and torque lug nuts | Improper torque, tool slip, vehicle movement | Lower vehicle slowly, torque nuts using star pattern, follow manufacturer torque specification |
| Stow tools and remove traffic devices | Trip hazards, struck by traffic | Gather tools and wheel safely, remove cones or flares once clear of traffic, maintain situational awareness |
| Reenter traffic | Collision hazard | Use signals, wait for safe gap in traffic, accelerate smoothly |
High visibility vest or Class 3 roadway garment
Safety glasses
Mechanic gloves
Steel toe boots
Hearing protection when using impact tools
Weather appropriate clothing