A high-quality 6mm thick thrust washer (wear pad), made of a durable, low-friction polymer. It is a key component in the rack and pinion slew mechanism. Its function is to take up vertical play between the kingpost and the sideshift carriage, ensuring a smooth and precise slew of the backhoe arm without jerking.
Aftermarket quality product – an intelligent choice combining excellent quality with an attractive price.
| Brand (Machine Type) | Model |
|---|---|
| JCB (Backhoe Loaders) | 3CX, 4CX (models manufactured up to serial number 405988, with rack and pinion slew) |
The list above is for reference. It is crucial to ensure that your machine has the older sideshift type with a rack and pinion slew mechanism.
Replacing kingpost components requires dismantling heavy backhoe arm parts. Always secure the arm from falling using the service lock and certified axle stands. Never rely solely on the machine's hydraulics. Use safety glasses and gloves.
For a complete joint refurbishment, always replace the upper and lower thrust washers together with new bushings and pins. Regular greasing of the kingpost with high-quality HYPTRON grease drastically extends the life of all moving parts.
Thrust washers are sacrificial components designed to wear out to protect the much more expensive cast iron parts of the kingpost and carriage. Ignoring worn pads leads to play, which causes the arm to "rock", jerk during slewing, and accelerates wear on the rack and pinion.
Replace the wear pads if you notice:
Your older machine is still worth its weight in gold.
We have a wide range of parts for machines with the older slew type that will allow you to keep it in full technical condition for years to come. Protect your machine from expensive repairs – order a complete set of GX-AFTER wear pads and bushings and restore the factory rigidity to the joints.
These pads take up the up-and-down play. If you have rotational play (the arm "wobbles" side to side), the kingpost pin bushings (upper and lower) or the slew ram bushings are likely worn. A comprehensive repair requires assessing and replacing all worn components.
2. How do I choose the correct pad thickness?You should use a feeler gauge to measure the vertical gap between the kingpost and the carriage. Select pads of a thickness that minimizes the gap after installation, while still allowing for free, smooth slewing. We offer wear pads in 6mm, 8mm, and 10mm thicknesses.
3. How do I distinguish the "old type" of slew from the new one?The "old type" of slew, used up to approx. 1991 (serial number 405988), is based on two hydraulic rams and a rack and pinion system. Newer machines use a slew ring system (like in large excavators), which has a completely different kingpost and carriage design.
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Working Precision
Eliminates play and "rocking" of the arm.
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Machine Protection
Protects expensive components from wear.
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High Durability
Polymer resistant to abrasion and cracking.
Have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you choose the right part to get your equipment back to work as soon as possible.
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