Technical maintenance and repair of running gear

About the Company

Since 2010, Prombudkoliya has been providing technical maintenance and repair of running gear for diesel locomotives, industrial locomotives, and railway equipment. We perform diagnostics, defect inspection, and restoration of bogies, axlebox assemblies, suspension systems, wheelsets, axles, and brake components, ensuring reliable operation of rolling stock and traffic safety.

All work is carried out in accordance with Ukrzaliznytsia technical regulations, DBN standards, and original equipment manufacturer requirements. Every assembly undergoes geometric inspection and testing on specialized test benches.

Purpose of Running Gear Maintenance

The running gear of a diesel locomotive is a critical assembly that absorbs the main dynamic loads during operation. Regular maintenance prevents excessive wear, improves track stability, reduces vibration, and extends the service life of rolling stock. Prombudkoliya performs both scheduled maintenance and major repairs of locomotive running gear.

Main Areas of Service

Diagnostics and Defect Inspection of Bogies

Includes visual inspection, measurement of wear on axles, springs, axlebox housings, checking clearances and geometry. If required, ultrasonic flaw detection and wheelset runout measurements are performed.

Axlebox Assembly Repair

Replacement of bearings, seals, and lubricants; inspection of axle journals and covers. If damage is detected, seating surfaces are restored and clearances are adjusted.

Repair and Adjustment of Suspension Systems

Springs, leaf springs, links, and rubber-metal elements are inspected and replaced as required. Suspension height adjustment and bogie centering are performed to ensure even load distribution.

Wheelset Inspection and Repair

Measurement of wheel diameter, profile, and ovality is carried out. If necessary, wheel reprofiling, balancing, or replacement is performed. Axle fastening and axlebox bearing condition are monitored.

Bogie Frame and Joint Repair

Inspection of welded joints, fasteners, center pivots, and connecting components. If required, geometry restoration and welding are performed followed by non-destructive testing.

Brake System Maintenance

Inspection and repair of brake shoes, cylinders, lever mechanisms, regulators, and air pipelines. Worn components are replaced and brake actuation is adjusted to ensure effective braking.

Service Stages

1. Locomotive acceptance and diagnostics
2. Disassembly and defect inspection of running gear
3. Repair or replacement of worn components
4. Suspension adjustment and bogie centering
5. Geometric inspection and bench testing
6. Reassembly and load testing

Our Capabilities

• Maintenance of all bogie types (TEM2, TEM18, TGM3, ChME3, etc.)
• In-house test benches for axleboxes and wheelsets
• Component restoration using welding overlay and grinding
• Supply of original spare parts and components
• Qualified specialists in mechanics and non-destructive testing
• Guaranteed quality and adjustment accuracy

Company Advantages

• 15 years of experience in diesel locomotive maintenance and repair
• Comprehensive approach — diagnostics, repair, and testing
• Modern equipment and certified test benches
• Certified materials and strict quality control
• Short turnaround times
• Repair warranty of up to 12 months

Completed Work Examples

Running Gear Repair of a TEM18 Diesel Locomotive (Dnipro, 2023)

Bogie defect inspection, replacement of bearings and springs, wheelset reprofiling, and suspension adjustment were performed. Final testing was carried out on a test bench.

Axlebox Maintenance of a ChME3 Locomotive (Poltava Region, 2022)

Bearings and seals were replaced, axial clearances adjusted, and lubrication performed. Work was completed without removing the locomotive from operation.

Major Bogie Overhaul of a TGM6 Locomotive (Zaporizhzhia, 2021)

Disassembly, defect inspection, frame restoration, replacement of suspension components and brake elements. The bogies passed load testing.

Frequently Asked Questions

How often is running gear maintenance required?

Diagnostic inspection is recommended every 6 months, while full maintenance should be performed at least once per year or after 50,000 km of mileage.

Can maintenance be performed without removing the bogies?

Yes, certain operations (inspection and adjustment of axleboxes, brakes, and suspension) can be performed without removing the bogies, directly on the locomotive.

What warranties are provided?

All completed work is covered by a warranty of 6–12 months, depending on the scope of work and operating conditions.

Submit a Request

Need maintenance or repair of diesel locomotive running gear? Submit a request, and Prombudkoliya specialists will perform diagnostics, prepare a cost estimate, and complete the work with guaranteed quality and reliability.