How to repair a diesel locomotive in 60 days? Welcome to the production depot, where specialists will disassemble and assemble a shunting diesel locomotive in just two months according to the prescribed checklist. So, given: 1 diesel locomotive, 20 specialists and 60 days for repairs. First, preparatory work is carried out - acceptance of the locomotive. Workers describe all units and assemblies, draw up an act of acceptance and transfer for repair. When the documents are ready, the locomotive is placed in the repair position, on jacks. At this stage, the hood, diesel, compressor and auxiliary equipment are dismantled. Traction electric motors, generator and two-machine units leave for the branch. Disassembly, preparation for dismantling of all large units and assemblies takes three days. Next is the turn of the diesel unit. Workers open it and take out the crankshaft. This is the most important part of the engine. The crankshaft awaits repair and grinding. Covers, valves, fuel pumps and diesels are disassembled and inspected. The work crew has a month to repair all the parts and assemblies. The main components of the diesel engine are sent to the in-house non-destructive testing laboratory for testing. Here, they look for defects - cracks, chips and discontinuities. To do this, the lab technicians use ultrasound, magnetic testing and the eddy current method. The wheels are tested on a specially designed stand. Dismantling continues: workers remove all cooling sections to conduct hydraulic tests. After this, they will begin repairing the main fan gearbox. Next, they take out the brake system compressor. Here, the workers will change all the elements of the connecting rod and piston group. The locomotive is disassembled. Assembly begins. All components and assemblies are ready. Large parts have returned to the depot after repair. First, the wheel-motor units are assembled. Then - the diesel. In one part of the workshop, workers assemble the diesel, in another they turn the wheels. Defects are eliminated using a machine of our own design. Thanks to such a machine, one worker can update all the wheels of a locomotive in just one day. Electricians are also joining the work. Their task is to update all the wiring of the locomotive. This is almost 10 kilometers of wires. This work takes about a week. Before the final rheostat tests, the locomotive is run in: the first start, valve adjustment, oil pressure, fuel - everything is checked to ensure that the systems are functioning. Compressors are run in on a special stand that simulates the operation of the locomotive and helps to find faults. 45 days have passed since the start of the work. It is time to begin rheostat tests. The locomotive is connected to a special mobile complex - it simulates the load on the locomotive in 8 modes, and sensors and graphs show whether the locomotive can handle it. After all the systems of the locomotive are installed and tested, it is almost ready for work. The paint shop remains. There, the locomotive is cleaned, primed, painted and the customer's logo is applied. The last step is filling out the paperwork. Engineers prepare maps of measurements of the main units, a rheostat protocol and a repair form. In 60 days, the major repair of the diesel locomotive is completed.