Smoke machine (leak detector) not cleaned of residual smoke fluid
If not cleaned regularly, it can lead to:
- Insufficient smoke output
- Clogged tubing
- Unstable pump pressure
Many technicians mistakenly think the machine is broken, when in fact it simply hasn’t been cleaned.
Recommendation: Empty residual fluid and clean the tubing after each use.
Battery tester probes oxidized or making poor contact
This can result in:
• Unstable voltage readings
• Incorrect battery health assessments
Recommendation: Wipe the probes weekly and check the spring clamp tension.
Lack of lubrication on lift rails
This can lead to:
- Jerky or uneven lifting
- Increased operating noise
- In severe cases, unstable lifting movement
This is a major safety hazard that many shops tend to overlook.
Torque wrench not calibrated regularly
Torque deviation can lead to serious consequences:
• Over-tightening → thread damage
• Under-tightening → risk of wheel detachment
Recommendation: Send for calibration every six months.
Oscilloscope or multimeter test leads damaged but still in use
This can directly cause:
• Incorrect voltage readings
• Misdiagnosis of sensor or ECU issues
Recommendation: Immediately replace test leads if the insulation is damaged.
Tire pressure gauge not calibrated, causing large measurement errors
An error of 0.2–0.3 bar can affect:
- Tire wear
- Increased fuel consumption
- Reduced high-speed stability
Recommendation: Calibrate the gauge quarterly.
Pneumatic tools (air wrenches, air drills) not lubricated
Lack of lubrication can cause:
- • Wear of internal vanes
- • Reduced torque
- • Significantly shortened service life
Recommendation: Add a few drops of pneumatic oil before each use.
Dust accumulation on headlights testing equipment lenses and sensors
Dust can cause:
• Inaccurate test results
• Improper headlight alignment
Many repair shops never clean their testing equipment.
Recommendation: Clean the lenses and sensors once a week.
