Caterpillar 323D Excavator Drawbar

Caterpillar 323D Excavator Drawbar

This Caterpillar 323D excavator boom tip (part number 234-3746) is a critical hinge bushing assembly installed at the front end of the dipper stick, connecting the bucket. It features an oil-impregnated bronze bushing designed to withstand impact loads and shear forces during excavation operations. The component reduces friction and wear between the pin and the dipper stick hole, controls hinge clearance, prevents excessive play, noise, and oscillation, thereby protecting both the dipper stick hole and the pin, extending service life, and ensuring operational stability and precision.
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Description
Caterpillar 323D Excavator Drawbar
 


Part Number: 234-3746
Compatible Machine Model: Caterpillar 323D Excavator
Structural Form: Integral steel sleeve + Built-in copper-based self-lubricating bushing
Main Material: High-strength alloy steel (quenched and tempered heat treatment)
Bushing Material: Porous oil-containing copper alloy
Surface Treatment: Precision machining of inner and outer holes + Anti-rust treatment
Assembly Method: Interference fit, precisely matching the original vehicle hole positions

Product features

 

 

High-strength impact resistance: The main body is treated with alloy steel quenching and tempering, which is resistant to compression and deformation. It can withstand high-frequency impacts under heavy-load conditions and is unlikely to crack.
Self-lubricating and wear-resistant: The built-in oil-containing copper bushing has its own lubrication holes, reducing dry friction. Compared to ordinary steel bushings, its service life is increased by several times and the replacement frequency is reduced.
Installation without modification: The hole positions are fully matched with the original vehicle. It can be installed by press-fitting without the need for secondary processing of the bucket hole, without damaging the original structure.
Elimination of gap noise: High-precision processing ensures reasonable mating clearance. After installation, it can effectively solve the problems of bucket shaking and abnormal noise during operation, restoring the stability of the equipment.
Maintenance is convenient and worry-free: The bushing has its own oil storage structure. Daily maintenance can be done by adding grease, reducing the maintenance workload and extending the service life of the pin shaft and bucket hole.

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FAQ                     

 

 

Q1: Is the installation of this marl head complicated?
A1: The installation is simple. It can be easily installed in place by using a press machine without needing to change the bucket hole position. A maintenance technician can complete the replacement in just a few hours and it won't affect the subsequent use.


Q2: Will the bucket still shake after the replacement?
A2: As long as the bucket shaft hole is not severely deformed, after replacing the new marl head and the corresponding pin shaft, the gap will return to normal, and the shaking and abnormal noise can be basically eliminated.


Q3: How long can it be used normally?
A3: With proper maintenance, it can generally be used for 1-3 years in normal conditions; in heavy-duty mining conditions, the lifespan will be shorter, but it is much more durable than ordinary steel sleeves.

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