Equipment Hazard Alerts Archives
These files represent older Equipment Hazard Alerts that were posted on MSHA's web site. We are providing these as they still contain useful information for you to use.
|Alert for Cap Lamps that Use Lead-Acid Batteries - Dated: 04/17/2008
Users of cap lamps powered by lead-acid batteries need to be aware of a potential possibility of explosions involving the batteries.
|Automatic Emergency Parking Brakes (AEPB) on Long Airdox 400 and 600 Series Scoops|
- Dated: 06/04/2008
A scoop was recently cited for non-compliance of 30CFR 75.523-3(b)(2). If the machine's hand pump was used to release the AEPB when the scoop was off, when the scoop was re-energized, the AEPB would not reset until one of the hydraulic functions was operated. The AEPB was restored to normal operation when a hydraulic function was operated.
|Benshaw RS Series Reduced Voltage Motor Starters - Dated July 28, 2009
Benshaw issued a warning safety notice to inform users of the Benshaw RS solid state reduced voltage starters with SCR bypass contactors of a potential safety hazard. To eliminate this potential hazard, Benshaw will supply at no charge a relay interlock kit to be installed in the control logic for the motor starter. Please refer to the attached bulletin for affected starters and contact information.
|Brookville Battery Powered Man Trips and Personnel Carriers with Hydraulic Brakes - Dated: 04/2006
Instructions for Properly Maintaining the Braking System
|Bucyrus 848 Un-A-Hauler AEPB Systems - Dated June 2, 2009
The automatic emergency-parking brakes on some Bucyrus 848 Un-A-Haulers may take 4 to 5 seconds to activate after the panic bar is hit. When this type of equipment is field tested, the brake must engage within one second after hitting the panic bar. As a precaution, the 848 Un-A-Haulers should be field tested to determine if the brakes activate immediately (within one second) when the panic bar is hit as required by 30 CFR 75.523-3(b)(1).
|Caterpillar Incorporated Off-Highway Truck and Tractor Field Service Notification - Dated: 01/2006
MSHA has been notified by Caterpillar of a potential corrosion issue related to certain Caterpillar off-highway trucks and tractors. Specifically, engine exhaust may contribute to frame corrosion of the cab support structure. Caterpillar has launched an inspection program with provisions for repair, if required, that will affect a number of trucks and tractors in use at coal and metal and nonmetal mines throughout the United States. Please contact your local Caterpillar dealer immediately to schedule a service appointment. For specific information, please use the link provided below.
|CSE SR-MP Expectations Training Unit - Dated July 7, 2009
CSE is issuing this User Notice in response to a recent incident in which SR-MP training units were not used and handled in accordance with the Instruction Manual. Preliminary investigation indicates that units were used longer than the 5 minutes specified in the the Instruction Manual and that these overused units or their associated mouthpieces were then co-mingled with new units.
|Failure to Detect Loss of Brake Accumulator Pressure - Dated: 09/2007
Recently in Australia, a loader traveling downhill lost its brakes after the engine stalled, causing the operator to lose control. The loader rolled over onto the operator who was crushed between the cab and the ground. It was found that the brake accumulator pressure was too low to provide effective braking, and several of the parking brake components were missing.
|Fire Suppression System on Fairchild Scoops - Dated April 21, 2009
Fairchild International issued a Product Information Bulletin concerning the fire suppression system on Fairchild battery powered scoops. The fire suppression system may not be installed according to manufacturer recommendations (Ansul).
|Industrial Scientific Announces Product Recall of|
GasBadge® Plus Single-Gas Monitors - Dated 2/7/2012
Industrial Scientific Corporation has determined that the GasBadge® Plus single-gas instrument may not properly indicate a low battery condition resulting in a failure to alarm or instrument shut down. As a result, for safety reasons, Industrial Scientific is issuing a recall of all current GasBadge Plus instruments (v2.2 and earlier; manufactured prior to February 2012). MSHA Approval No. 18-A050012-0.
|Important! Safety notice and recall of certain Fluke Digital Clamp Meters - Dated June 8, 2009
In cooperation with the U.S. Consumer Product Safety Commission, Fluke is voluntarily recalling certain 333, 334, 335, 336 and 337 Digital Clamp Meters that were manufactured between January 29, 2008 and February 27, 2009. The models and serial numbers affected are listed in the table available below.
|Getman TerraPro Accelerator Pedal - Dated January, 2009
An accident occurred with a diesel powered TerraPro Personnel Carrier. The driver of the TerraPro Personnel Carrier reported that he lost control of the machine after the throttle became stuck with the engine at maximum RPM. When the throttle pedal was in the fully depressed position, it could become stuck and result in the operator loosing control of the engine rpm.
|JLG Product Owner - Upper Lift Cylinder Pin Retainer Inspection|
JLG Model 2630ES, 2646ES, and 3246ES Scissor Lifts - Dated March, 2009
This letter is being issued to highlight the need to perform the required daily pre-start inspections, as described in the Operators and Safety Manual, on Models 2630ES, 2646ES, and 3246ES scissor lifts manufactured by JLG Industries, Inc. ("JLG"). Reports from the field have indicated that the upper lift cylinder pin retainer hardware could loosen over time, and if overlooked dUring the daily walk-around inspections, could potentially disengage the pin keeper.
|Komatsu Electric Drive Dump Trucks - Dated July 6, 2009
Komatsu issued Parts & Service News (Reference No. AA08089B and AA09095) on July 1, 2009, concerning a steering bleeddown manifold fitting. The 45° hydraulic piping elbow /flare fitting may experience a failure due to stress. A visual examination of the fitting should reveal any cracks and/or oil leaks.
|Large Electrical Equipment at Surface Mines May Have Auxiliary Power Sources - Dated: 11/2006
COAL MINE FATALITY - An electrician, with 21 years of experience, was fatally injured while troubleshooting a dragline trailing cable at a surface coal mine. The electrician was working at an electrical junction box that supplied power to the dragline when he contacted two energized phase conductors. Incoming power to the junction box had been visually disconnected and locked out by the electrician. An onboard diesel powered generator was started and back fed 480 volts through on-board transformers connected to the dragline's trailing cable and energized the phase conductors to 23,000 volts.
|Miller® BackBiterTM Shock-Absorbing Lanyard - Model No. 8798B - Dated July 29, 2009
MSHA recently became aware of a backbiter rivet shearing, causing the keeper on the snap hook to detach from the unit. This resulted in the loss of dual-action functionality of the snap hook. Sperian Fall Protection, Inc., which represents the Miller brands, issued a letter to their customers instructing them to conduct a daily inspection (by the user) and a periodic inspection by a company-appointed competent person according to the manufacturer's instructions.
|Original Equipment Manufacturer (OEM) Load-locking Valves - Dated October, 2008
Loading and continuous-mining machines, since 1981, are required by MSHA to be equipped with load-locking valves in the boom and head lift cylinders. The load locking system installed must be maintained in proper working order.
|Sandvik DFP07-CS, DFP30-DT, and LS195 - Dated: 11/12/2009
Sandvik issued a Human Safety Bulletin stressing the importance of manually engaging the park/emergency brake before exiting the equipment.