# HANDLING OF MATERIALS
> MSHA accident `220072340004` · 08/20/2007 · Luck Stone Corporation
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Struck by... NEC
- **Occupation:** Pumper
- **Activity:** Machine maintenance
- **Injury source:** COAL & PETROL PRODUCT,NEC
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 3
- **Mine experience:** 4.38 years
## Operator
- **Controller:** Charles S  Luck IV
- **Operator:** Luck Stone Corporation
- **Mine:** [4402964](https://api.ai-analytics.org/mine/4402964)
## Narrative

Troubleshooting the hydraulic adjustment system on the  crusher. Installed a pressure gauge on the pump by attaching the pressure hose to a malleable black iron tee that had the pressure gauge threaded in the other end. Pump was turned on and hydraulic pressure split the tee that was in his hand. The hydraulic fluid, under 4000 psi, cut his thumb and damaged a tendon.

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*