| Current Alerts |
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Sandvik DFP07-CS, DFP30-DT, and LS195 - Added: 11/12/2009
Sandvik issued a Human Safety Bulletin stressing the importance of manually engaging the park/emergency brake before exiting the equipment.
A number of Sandvik machines are equipped with an optional door interlock. The door interlock will automatically engage the park/emergency brake when the door is open while the machine is running however, closing the door will release the brake. This may result in movement of the machine if the operator did not engage the park/emergency brake before exiting the machine
See Human Safety Bulletin
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| Previous Alerts |
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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.
See Alert
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ANSUL Fire Protection Products - Dated: 03/07/2007
ANSUL® recently issued General Bulletin NO. 5208; regarding an important technical update for the Checkfire® SC-N detection and control module. This bulletin was issued due to the SC-N control module activating for undetermined reasons on surface mining equipment. Resulting investigation led ANSUL to determine that the activation was due to RF/EMI (Radio Frequency/Electro Magnetic Interference). A new component board was added to the Checkfire® SC-N detection and control module to decrease susceptibility to outside interference. Any operation experiencing activation with no apparent reason, please contact your ANSUL representative.
See Bulletin
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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.
See Alert
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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.
See Benshaw Inc. Warning Safety Notice
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Brookville Battery Powered Man Trips and Personnel Carriers with Hydraulic Brakes - Dated: 04/2006
Instructions for Properly Maintaining the Braking System
In October of 2005, a non-fatal accident occurred when a personnel carrier lost its brakes, rolled down a grade, and collided with another vehicle. The machine involved in the accident was a battery powered Brookville Model ULPC, 13 Man Ultra Low Personnel Carrier. The personnel carrier’s braking system consisted of an electrical regenerative brake, a hydraulic service brake, and a spring applied parking/emergency brake. The service brake system failed at the time of the accident and the operator was unable to regain control of the machine using the regenerative or the emergency brake. Tests of the service brake system showed intermittent failure of the hand operated hydraulic service brake actuator (master cylinder). The investigation determined that debris found inside the actuator caused seal failure in the actuator.
See Brookville Product Information Bulletin
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Bucyrus 848 Un-A-Hauler AEPB Systems - Posted 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).
Bucyrus has issued a bulletin describing a remedy for the delayed brake activation. As described in the attached bulletin, the remedy consists of replacing the brake solenoid valve with a replacement solenoid valve and a pilot-to-close check valve. Please contact a Bucyrus representative with any questions or for more information.
- See Bulletin
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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.
See More Information
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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.
See User Notice
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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.
See Alert
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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).
The hoses & fittings fire suppression circuit drawing numbers TC1730X21, TC1730X26, and TC1730X27 were revised to comply with Ansul specifications. If you have questions or do not know if the machine's fire suppression system complies with Ansul's specifications, please contact your Fairchild service representative.
- See Bulletin No. 2126
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Important! Safety notice and recall of certain Fluke Digital Clamp Meters - Posted 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.
- See List
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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.
Getman acquired TerraPro equipment line in 2007. The equipment in question was built prior to the acquisition. Getman issued Service Bulletin No. 08-01 to address the sticking pedal issue with the TerraPro Personnel Carriers built prior to April 2007.
The electronic throttle pedal sticking issue was questioned with the TerraPros manufactured by Getman. Service Bulletin No. 08-02 addresses the sticking pedal concern of Getman TerraPros built from April 12, 2007 to present.
See Service Bulletins
-08-01
- 08-02
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Industrial Scientific Corporation - Dated July, 2008
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Inspection of Cached SR-100 Units - Dated: 03/28/2008
This technical safety bulletin was issued by CSE. It concerns changes to SR-100 "Daily Visual and 90-day Inspection Criteria".
See Alert
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Insulation of Cable Reel and Spooling Devices - Dated: 03/17/2008
The Mine Safety and Health Administration (MSHA) has found that an exposed, accessible cable roller(s) located between the sheave wheels and the area housing the cable reel and spooling device on a shuttle car can pose a shock hazard. The potential shock hazard is created when accessible, uninsulated and ungrounded metal roller(s) comes in contact with an exposed trailing cable. Rollers are typically located between the sheave wheel carrier and the cable reel housing/spooling device assembly.
See Alert
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J.H. Fletcher & Co. Information Bulletin No. 111 - Dated December, 2008
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J.H. Fletcher & Co. Information Bulletin No. 110 - Dated December, 2008
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J.H. Fletcher & Co. Information Bulletin No. 109 - Dated July, 2008
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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.
- See Alert
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J.H. Fletcher & Co. Information Bulletin No. 108 - Dated May, 2008
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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.
A Komatsu Electric Drive Dump Truck 830E-AC developed a crack in the fitting that sprayed hydraulic oil on an uncovered piece of exhaust pipe resulting in a fire. Exhaust pipes should be completely protected but openings in the wrap have been detected on other machines. A deflector may be installed around the fitting to divert oil away from engine parts in case of a fitting failure until a fitting replacement can be obtained and installed by Komatsu.
The Parts & Service News lists the dump trucks affected and explains how to replace the fitting with an improved fitting. Komatsu distributors are in the process of informing customers about replacement of the steering bleeddown manifold fitting.
See Komatsu Parts & Service News
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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.
See Bulletin
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Manitowoc Crane Care - Dated July 25, 2008
The crane division of manufacturer Manitowoc Co. Inc. has told operators of one of its models to shut the cranes down because of problems the company says could affect their structural integrity. The service bulletin, dated July 25, said there were problems with the width of chords that make up part of the lattice-like structure of the arms on Manitowoc's model 16000 series of cranes. It listed the serial numbers of 18 cranes, but did not say where they were in use.
See Alert
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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.
See Letter
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MSA Dyna-Lock® Self-Retracting Lanyard 20ft. Models - Dated September 4, 2008
MSA recently received a report that the attachment handle on a 20 ft. Dyna-Lock Self-Retracting Lanyard (SRL) became loose and separated from the unit. Although the user was not injured, their inspection of the unit revealed that the ends of the two screws securing the handle were not swaged (flattened) as intended...
See Alert
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North Safety Products
- Dated 01/17/2007
North Safety has identified certain conditions where Saf-T-Lok Sleeves or Rail may not perform properly during a fall.
Under these conditions, a climber may fall farther than intended, resulting in serious injuries or death.
See Alert
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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.
See Alert
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Park/Emergency Brakes on Battery Powered Machines
- Dated: 04/18/2008
On March 11, 2008, Sandvik issued a Safety Bulletin, Park/Emergency Brake Retrofit Kit and Test Procedure for Battery Powered Machines. The safety bulletin was issued due to a MICO park/emergency brake found in a dry condition in an Eimco Coal Hauler. The park/emergency brake was designed to be used wet with hydraulic oil as the coolant. The safety bulletin affects all 508CS, 518CS, and 580CS battery powered machines and all MICO park brakes supplied under part number 3210166 by EIMCO, EJC or Sandvik (MICO model number 13-547-420). The safety bulletin can be accessed below. Please contact your local Sandvik representative for the field retrofit kit and/or more information and questions.
See Alert
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Volvo Equipment Alerts
- L50D, L60E, L70E, L90E, L110E, L120E, L150E, L180E, L220E, L330E Obstruction of Air at Inlet Side of Air Cleaner Cap - See Alert - Dated: 12/2003
Volvo CE has requested the removal of this bulletin due to closure of the update and/or that it has been posted of over a one year time frame.
- Brake Disc, Changed Minimum Thickness - Dated: 11/2005
Changed specification in the Service Manual for minimum thickness of "Brake disc, service brake (tractor– and load unit)".
Volvo CE has requested the removal of this bulletin due to closure of the update and/or that it has been posted of over a one year time frame.
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