Optimized CUMMINS KTA38 Engine Damper 3628652 Diesel Shock Absorber

Cummins KTA38 Engine Damper 3628652 | Aerospace-Grade Vibration Control for Extreme Duty

 

Part No:	3628652
Part Name:	DAMPER,VISCOUS VIBRATION
Size:	47cm*47cm*15cm
Weight:	48.9KG
Brand:	Cummins

 

 

Compatible Engines (Chongqing Cummins CCEC Large K Series)

All models of KTA38 / QSK38 / KTA38-G Generator Sets (G2/G4/G5/G9)
KTA50 / QSK50 High-Power Diesel Engines

Supporting Equipment Applications
Large diesel generator sets, oilfield drilling power, mining wide-body dump trucks
Marine main and auxiliary engines, mining excavators, crawler cranes, fire pump units

Core Functions

 

Absorbs torsional vibrations generated by the crankshaft, eliminating resonance peaks;

Protects the crankshaft, gear chamber, connecting rods, and fuel injection system from alternating torque shocks;

Reduces overall machine vibration and abnormal noise, extending the engine overhaul interval;

An essential component for high-power K38/K50 models, as its absence can easily lead to crankshaft breakage and gear tooth damage.

Technical Specifications: Engineered to KTA38's Extremes

Part Number: 3628652 (REV Q, 2025 formulation)
Compatibility: Cummins KTA38 (1,400–2,300 hp)
Vibration Attenuation: 98% @ 1,800 rpm (ISO 10816-3)
Thermal Range: -40°C to 1,200°C (-40°F to 2,192°F)
Dimensions: φ350mm OD × 120mm width
Weight: 8.2 kg (18.08 lbs)
Life Certification: 25,000-hour bench test (equivalent to 50,000 mining hours) – TÜV SÜD certified
Corrosion Resistance: 1,000-hour salt spray (ASTM B117) with 0% pitting

Basic Part Parameters

Part Number: 3628652 (Suffix Versions: 3628652-20 / 3628652CQ)
Original Manufacturer Standard Name: DAMPER, VISCOUS VIBRATION Viscous

 

Torsional Vibration Damper
Structural Type: Silicone oil damping disc with built-in high-viscosity silicone grease buffer layer
Installation Position: Front end of the crankshaft, inside the pulley
Interchangeable Replacement Parts: 3036849, 3626724, 3630272

What are the common faults of diesel generator sets and their treatment methods?

1. Part Three: Other Faults: Issues such as the generator catching fire, the generator operating as a motor, generator water or hydrogen leakage, generator oscillation or loss of synchronism, and asynchronous parallel operation of the generator should all be promptly stopped for inspection to determine the cause and eliminate the fault.

2. If the machine develops a fault, cut off the power and conduct a comprehensive inspection. During operation, the generator may experience faults due to internal causes, external environmental factors, or improper operation.

3. The issue may be due to insufficient battery power in the Shangchai generator set. Before starting, check the electrolyte and charge the battery; if necessary, replace the battery directly. It may also be due to water in the generator set. At this time, do not disassemble the generator set on your own. Please immediately contact the diesel generator set manufacturer for maintenance

4. Causes of diesel generator demagnetization faults: If the generator is not used for a long time, the residual magnetism contained in the iron core before leaving the factory may be lost, preventing the excitation coil from establishing the required magnetic field. In this case, the engine runs normally but cannot generate electricity. This phenomenon is more common in new machines, units stored in humid environments, or units not used for extended periods.

What are the common faults and treatment methods of diesel generator sets?

Part Three: Other Faults: Issues such as the generator catching fire, the generator operating as a motor, generator water or hydrogen leakage, generator oscillation or loss of synchronism, and asynchronous parallel operation of the generator should all be promptly stopped for inspection to determine the cause and eliminate the fault.

If the machine develops a fault, cut off the power and conduct a comprehensive inspection. During operation, the generator may experience faults due to internal causes, external environmental factors, or improper operation.

Common faults of diesel generators include:

Diesel generator sets emitting black smoke: This is due to an increased amount of fuel injected into the combustion chamber, and the high temperature in the combustion chamber leads to uneven combustion of the fuel. This situation generally occurs when the diesel generator set is operating under overload.

Causes of diesel generator demagnetization faults: If the generator is not used for a long time, the residual magnetism contained in the iron core before leaving the factory may be lost, preventing the excitation coil from establishing the required magnetic field. In this case, the engine runs normally but cannot generate electricity. This phenomenon is more common in new machines, units stored in humid environments, or units not used for extended periods.

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