|below: shown carrying 1 end of a rail flatcar bridge to be installed on a nearby stream|
This Caterpillar 235 with a log loader modification is a classic. The Cat 235 was one of the first excavators sold by Caterpillar when they entered the market in 1970's. The photos here are dated in 2008 just days or weeks before this machine was scheduled to go for scrap.
While unlike some, such as the Koehring shown on this site, it was designed as a hydraulic machine from the ground up, and wasn't a modified 'steam shovel'. It is really a contemporary of the American 35A featured on this site. Unlike the previous generation such as the Koehring on this site, the boom is heavy enough that even after 30 years it doesn't show a lot of cracks and fractures. But it's dated in other ways. The single cylinder scissors grapple is less suited to small timber, and the piloted hydraulic controls are crude by today's standards in that like the American 35A, they lack any sense of 'feel', or ability to modulate. Stated bluntly the machine is heavy and clumsy as judged by today's standards. This isn't what earned it a trip to the scrap yard however. It takes a one way trip to the scrap yard because the undercarriage is no longer serviceable and the machine isn't worth the price of a new undercarriage.
The Cat 235 also was popular as an excavator. The photos shown here are of one that was well along in life. One can't help but notice the star patches on the boom just in front of where the boomlift cylinders attach indicating to me that the boom has cracked here and been repaired.
|Cat 235 Excavator|
Notice the the excavator boom has a dog leg (bent down) as compared to the log loader boom that is straight. This compensates for the fact that the excavator boom is designed to work below grade while the log loader works above ground. Other differences include an elevated cab for the log loader so you can see the top of the load, and extra spools for the grapple rotate and open/close functions.