Tips & Tricks
Bearings for drive folding arms
The bearings on the coupling shaft of the folding arms on the 300 and 400 series have proven to be a slight weak point.
Experienced contractors replace these bearings every two to three years as standard to ensure the operational reliability of their harvesting attachments.
The costs for this replacement are very manageable.
Frame boom Champion 4500
On a Champion 4500, the claw coupling for driving the folding arms suddenly broke.
The cause of this was not the coupling itself, but a weld on one of the frame booms had broken.
As a result, the two coupling halves were no longer aligned correctly, which could have led to a machine failure.
It is therefore recommended to weld one or two gusset plates onto this boom to strengthen it.
Scrapers on transfer rotors
The functional reliability of the "Kemper" attachments depends to a large extent on the sharp edges of the "scrapers" on the transfer rotors.
In the older models, these sharp edges could only be maintained by welding them on and then "grinding them to the edge".
In the "Champion 4500" shown below, as with the newer attachments, "scrapers" made of "Hardox" were installed, which can be changed easily.
This significantly reduces the maintenance effort.
However, in order to be able to cut a thread in "Hardox", you need a very high-quality tap!
