Truck maintenance

Serviceability Caterpillar designed the 797 to reduce service time thus ensuring maximtun availability. Routine maintenance points, such as fluid fill and check points, are close to ground level. Easily accessed connectors allow technicians to download data and to calibrate machine functions, thus extending maintenance intervals which further increases availability. The 797 is also designed to make major components accessible, which effectively reduces removal, installation, and in-truck maintenance time for all drivetrain components. 

The working chart used during the investigation would contain much more information and detail than this simplified chart. Events and conditions would address the truck maintenance program, the qualifications and conditions of the drivers and crane operator, and obviously more detail about the models, makes, and conditions of the trucks and crane, detaUs about the load (weights and rigging, for example), and more background information about the yard and the operations. 

Truck maintenance work usually requires a parts washer which may involve either a heated or ambient temperature solvent, hot tank, or a spray washer. In the solvent tank washer, solvent (usually mineral spirits, petroleum distillates, and naphtha) is recirculated from solvent tank. Spent solvent is usually replaced monthly. Carburetor cleaning compounds contain dichloromethane. Tanker cleaning often involves a solvent spray. 

Fine-Tuning Three-Piece Truck Maintenance. Railway Age 196, no. 3... 

Lifesaving Tips for Truck Maintenance. Construction Equipment 92,... 

Vagenas, N., U. Kumar, and E. Rormkvist. Analysis of Truck Maintenance Characteristics in a Swedish Open Pit Mine. International Journal of Surface Mining, Reclamation and Environment 8, no. 2 (1994) 65-71. 

Schwind, Gene F. Batteries and Chargers—Key to Lift Truck Maintenance. Material Handling Engineering. July 1996, pp. 57-58. 

Maintenance on gas trucks is also higher than with electric vehicles. About 5 percent annually of the initial cost applies to internal-combustion equipment, and about 2 percent annually to electric. A special feature on electric trucks with solid-state controls is the use of modules or circuit boards, which can be replaced as units and rebuilt at the factoiy. Typical maintenance costs for trucks operating five 8-h shifts per week are in the order of 3.15 per hour for gas vehicles and 1.78 per hour for electric ones. Under these conditions, energy costs are typically 9.3 cents per hour for gas trucks and 5.1 cents per hour for the electric units. 

Access for initial construction and maintenance is a necessary part of planning. Space should be provided for repair and replacement equipment such as cranes and forked trucks, and specialized items such as snow removal equipment, as well as access ways around doors and underground hatches. 

Maintenance considerations associated with each building, process area and equipment. Consider (a) access for cranes and trucks (b) work space for local repairs (c) operating conditions of adjacent parts of process to allow local repairs. 

Equation 4-371 assumes that for each operation a volume of cuttings is put into the reserve pit plus a mud volume equivalent to the circulation system. The additional volumes are attributed to mud dilution and maintenance. An additional contingency is added through 3 ft of freeboard. The reserve pit should be located in an area where capacity may be increased in an emergency or additional fluid trucked away. 

You will need to ensure that all plant and equpment (eg lift trucks, vehicles, gas appliances, machinery guarding, ladders, electrical equipment, lifting equipment, air receivers, ventilation plant) that requires maintenance (eg pre-shift checks, servicing, thorough examinations) is identified and that the maintenance is done. 

Mineral Oil Hydraulic Fluids. Populations with potentially high exposures to mineral oil hydraulic fluids include all occupations that maintain hydraulic equipment including automobile, truck, and tractor mechanics, mechanics employed by heavy industry and mining operations to repair and maintain hydraulic equipment, and other maintenance workers involved with the repair and maintenance of hydraulic systems. The number of workers with potentially high exposures to mineral oil hydraulic fluids is expected to be very large. 

Department regulations require trash collection trucks to have transmission maintenance every 13,000 miles. Truck B-17 last had main tenance on its transmission at 12,398 miles. The mileage gauge now reads 22,003. How many more miles can the truck be driven before it must be brought in for transmission maintenance ... 

Hydrogen gas may accumulate in rooms or areas where multiple batteries are routinely recharged or maintained, such as electric fork-lift truck charg-ing/maintenance stations and storage battery banks for Uninterruptible Power Supplies (UPS). Adequate continuous ventilation (natural or active) should be provided (CCA, 1992 NFPA 50A, 1999 NFPA 506, 1999). 

The local fire department arrivedjust after the explosion at 11 22 A.M. With the limited water supply on two of the fire trucks and the utilization of another fire truck to pump water directly from a nearby cooling water tower basin, the firemen were able to slow the fire spread. By 11 30 A.M., the Maintenance Department was able to transfer the set of batteries from the impaired diesel fire pump to the other diesel fire pump. On completion of this task, this diesel fire pump was started. The automatic deluge sprinkler protection was severely damaged by the fire/explosions and had to be valved into the off position. Three fixed monitors were turned onto lull flow and directed at the fire. Also, the firemen and fire brigade used two hose streams olF nearby fire hydrants for fire fighting purposes. At 11 58 A.M., the fire was under control. Final fire extinguishment was accomplished by 12 10 p.m. 

In 1992, researchers developed an engineering and costing design for a fixed unit that operated at a rate of 2 tons per hour. Costs were estimated to be 149 (Canadian) per metric ton of soil treated. This estimate was based on the following assumptions the unit used medium naphtha as a solvent operations were 24 hours per day, for 260 days per year utilization factor of the facility was 83% capital costs were 2,548 million (Canadian) and capital amortized over 10 years at 10%, two payments per year. The estimate stipulated that the recovered oil was of suitable quality to be sold to offset process costs. It was estimated that the largest component of process costs would be labor ( 56 per ton of waste treated). Other cost components listed were capitalization costs ( 38 per ton), utilities ( 29 per ton), insurance ( 9 per ton), trucking and maintenance (each 5 per ton), equipment rental and site excavation and restoration (each 3 per ton), and waste disposal was estimated to cost 1 per ton (D17896F, p. 8). 

Indirect cost. Indirect cost includes a large list of varied supporting equipment, utilities, and land for the modular major equipment cost method proposed herein. These items are commonly called offsites, which include cost of such items as roadways, land, buildings, warehouses, spare parts, maintenance shops, and electric power and water utilities. In addition to offsites, the indirect cost also includes the field-erection equipment, such as erection cranes, temporary construction buildings, welding supplies, and trucks. All of these items are necessities for the major equipment modules. 

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