Hydraulic Pressure and Pinhole Leaks
29 CFR 1926.600 · 29 CFR 1926.95 · This talk in Spanish
Why it matters
Hydraulic systems run at thousands of PSI, and a pinhole leak shoots a stream fine enough to be invisible and strong enough to inject oil through your skin. The old habit of running a hand along a hose to find a leak is exactly how fluid injection injuries happen, and they cost fingers when treatment is late. Today: finding leaks safely, releasing pressure, and treating any injection as surgery-level urgent.
Hazards
- ⚠ Fluid injection through skin from pinhole leaks
- ⚠ Hot oil burns from burst hoses and fittings
- ⚠ Attachments dropping when hydraulics fail or are serviced wrong
- ⚠ Trapped pressure releasing during repairs
- ⚠ Whipping hoses when fittings let go under pressure
- ⚠ Slip hazards and fire risk from leaked oil
Controls and safe practices
- ✓ NEVER feel for leaks with hands; pass cardboard or wood along the hose to find the stream.
- ✓ Lower or block attachments and release trapped pressure per the manual before opening any fitting.
- ✓ Inspect hoses on the walk-around: abrasion, bubbles, wet fittings, and rub points get reported.
- ✓ Replace, do not tape: damaged hydraulic hose is replaced with rated hose, not wrapped.
- ✓ Gloves and eye protection when working around fittings, plus standing out of line with them.
- ✓ Clean up oil promptly; it is a slip hazard now and a fire hazard near hot work.
- ✓ ANY skin strike by hydraulic fluid is an emergency room visit NOW; say the words high-pressure injection injury.
Crew discussion questions
- Who has hunted a leak by hand? What is the cardboard habit worth?
- Which machines here have hoses at rub points or showing wear?
- How do we release trapped pressure on our equipment, per the manual?
- Does everyone know injection means ER, even for a dot-sized wound?
Applicable OSHA standards
29 CFR 1926.600, 29 CFR 1926.95
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