Classic Machines: The Wabco 229 series scraper slideshow
- 21 July 2021
- Posted by: hastingsio
- Category: Non classé
The Wabco 229 scraper: an overview by Richard Campbell
In a successful attempt to keep up with the competition, Wabco finally incorporated full hydraulic controls into the Model C Tournapull.
Starting way back in 1939 with the original Model C Tournapull, LeTourneau (later LeTourneau-Westinghouse and finally Wabco) had traditionally used cable control systems on its motor scrapers, firstly mechanically controlled via a power control unit (PCU) and at the beginning of the 1950s, with electrically operated winches.
At the time, these control methods were perfectly satisfactory, but technology rarely stands still. When the 1960s rolled around, hydraulic control had matured to a point where it was considered a viable and reliable control system for operating scrapers.
A watershed year was 1962 when Caterpillar introduced a full range of its new “600” series motor scrapers, all of which incorporated hydraulic controls.
Wabco, however, steadfastly resisted the trend and instead went out on a bit of a limb with its C-500 motor scraper (see Contractor, Dec 2014) which was quite innovative, but still cable-controlled and not a commercial success.
In order to maintain market share, something had to be done.
Wabco designers took a standard electric steer Model C Tournapull from the production line and completely re-engineered it to incorporate hydraulic steering.
This also required an all-new vertical hitch and kingpost structure.
The basic “tub” of the tractor unit was still a C Tournapull but everything above it was changed or refined, including for the first time on a Wabco scraper, integral fenders on the tractor unit.
It was then the turn of the scraper to undergo a makeover.
Very quickly, the Wabco engineers realised that the existing Model C scraper was unsuitable for conversion to hydraulic control and so an entirely new design was formulated.
This looked nothing like previous Wabco scraper bowls having an inside supported rear axle and a fully hydraulic apron which drew its influence in no small fashion from that of Caterpillar’s.
The end result was the Wabco C229F motor scraper, Wabco retaining the “C” in the designation for a couple of years as homage to the previous C Tournapull and also for customer recognition as to where the model sat within the product range. The “C” was later dropped from the designation.
Introduced to the contracting world in 1967, the C229F was a worthy successor to the earlier C Tournapull and sales of the new machine were steady.
It was also put into production at Wabco’s Rydalmere, Australia, and Campinas, Brazil facilities the following year.
Weighing 24 tons empty and carrying 15 cubic yards struck, and 21 cubic yards heaped, the Wabco 229 retained the GM 8V-71 powerplant of the former C Tournapull with its output being increased from 290 to 318 flywheel horsepower.
An Allison CLBT4460 powershift transmission was standard and no manual transmission options were offered.
However clean and modern the 229 appeared, there was no mistaking the lineage of the machine. It was pure LeTourneau.
Manufacture of the 229 ceased in Australia at the end of 1971 but continued in Peoria, USA and Brazil.
Following on the success of the 229F, an updated 229G was offered from early 1971.
Cosmetically little different from the 229F, the 229G incorporated integral ROPS mountings and rear scraper fenders (both required by US law) and a muffler on the 8V-71 engine which was now turbocharged and producing 333 horsepower.
It also featured the six-speed Allison CLBT4465 transmission with integral retarder.
Thanks for checking out NZ Contractor magazine’s 229 scraper clip.
These clips are made from images published in conjunction with classic machine reviews at http://www.contractormag.co.nz/category/classic-machines/
Captions and associated images have all been uploaded to Pinterest https://nz.pinterest.com/ContractorMag/
Author Richard Campbell has sourced these images; Richard also blogs at http://www.contrafedupdate.me
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