Fishdog
Guest
I have a 1989 1_2 R40 with about 1200 engine hours. I have changed both feeder chains, accelerator rollers, they were wore pretty smooth, last season. Took the rotor out this winter to do the upgrades and the bars definitely needed replacing. At 1900 hours I would look at the concave. Mine is OK now but by the time the rotor bars need replacing i would say the concave would need replacing. I also replace the chain guides on the feeder chain drums when i replaced the chains. One of the old guides had come off and ruined the chains. The chains needed replacing anyway. I also replaced the auger in the bin.