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Product Details: 113-15-22321 Carrier Only (3 Hole)Product IntroductionThis product is the 113-15-22321 Carrier Only, specifically designed with a 3-hole configuration. It is a critical comp
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This product is the 113-15-22321 Carrier Only, specifically designed with a 3-hole configuration. It is a critical component within the undercarriage system of compatible Komatsu bulldozer models, playing a vital role in supporting and guiding the track chain.
Part Number: 113-15-22321
Component: Carrier (Carrier Roller Body / Top Roller Body)
Hole Configuration: 3 Holes
Compatibility: Komatsu D31p-16, D31p-17, D31p-18, D31a-16
Condition: Carrier Only (Note: Bearings, seals, shafts, etc., may need to be purchased separately or reused if in good condition, depending on supplier offering.)
(Specific dimensions, material composition, and weight available upon request or within detailed product specifications.)
Precise Fit: Engineered to exact specifications for seamless integration with Komatsu D31 series machines.
Durability: Manufactured from high-quality materials designed to withstand the harsh operating conditions of heavy machinery.
Performance: Helps maintain proper track tension and alignment, contributing to smooth machine operation and reduced wear on other undercarriage components.
Reduced Downtime: A reliable carrier minimizes the risk of undercarriage failure, keeping your equipment operational.
Cost-Effective Solution: Replacing only the carrier body can be a cost-effective repair option if other roller components are still in good condition.
This carrier is compatible with the following Komatsu crawler tractor/dozer models:
Komatsu D31p-16
Komatsu D31p-17
Komatsu D31p-18
Komatsu D31a-16
Komatsu D31 series dozers are versatile machines used in a variety of demanding applications:
Construction Sites: Site preparation, leveling, backfilling, and fine grading.
Landscaping: Shaping terrain, clearing land, and preparing ground for planting.
Agriculture: Land leveling, dike building, and preparing fields.
Utility Work: Trenching and backfilling for pipe and cable laying.
In all these scenarios, the undercarriage is constantly subjected to heavy loads, impact, and abrasive materials. The carrier roller supports the weight of the track chain as it moves between the sprocket and idler, preventing excessive sag and maintaining proper tension. A worn or broken carrier can lead to:
Increased wear on track links, pins, and bushings.
Poor track alignment and potential de-tracking.
Reduced machine performance and fuel efficiency.
Costly downtime for repairs.
Case Example (General): Consider a D31 dozer working on a rocky construction site. The undercarriage is constantly stressed. If a carrier roller fails, the track chain can sag excessively, causing increased impact on the remaining rollers and potential damage to the track links as they articulate over obstacles. Replacing the damaged carrier promptly with a high-quality part like the 113-15-22321 helps restore the undercarriage's integrity, ensuring continued operation and preventing cascading failures in other components.
For your Komatsu D31 series undercarriage needs, consider these related components:
Track Chains / Track Links: The main assembly the machine rides on.
Track Rollers (Bottom Rollers): Support the weight of the machine on the track.
Idlers: Located at the front of the track frame, they guide the track and help maintain tension.
Sprockets: The drive wheel at the rear that engages the track links.
Track Adjusters & Recoil Springs: Components for adjusting track tension.
Note: These parts are also compatible with Komatsu D31p-16, D31p-17, D31p-18, and D31a-16 models.
Installing a carrier roller requires careful attention to ensure proper function and longevity. Common issues include:
Incorrect alignment with track chain.
Improper torqueing of mounting bolts leading to loosening or damage.
Failure to clean mounting surfaces.
Not checking surrounding components (e.g., track frame wear).
Damage to seals during installation (if applicable).
Consult Service Manual: Always refer to the Komatsu service manual for specific procedures, torque values, and diagrams.
Cleanliness: Ensure all mounting surfaces on both the carrier and the track frame are thoroughly cleaned before installation.
Proper Torque: Use a calibrated torque wrench and follow the manufacturer's specified torque sequence and values for all bolts.
Check Adjacent Parts: Inspect the track frame and other nearby undercarriage components for wear or damage that could affect the new carrier.
Careful Handling: Handle the carrier carefully to avoid damaging mounting surfaces or seals.
Lubrication: Apply specified lubricants if required by the manual.
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