|GEAR RATIO:||#6 = 61:1|
|FITS MODEL:||D31/D37/ D39-21/21A, KomSat I/II|
Background : The W3C is regarded as one of the BEST winches available in the 30,000 lb weight class. All the small dozers made by the the major manufactures like Komatsu, Deere, CAT, CASE, and Dresser were equipped with PTO drives standard before the mid 2000's. The big change in the industry around 2005 was that most of the manufactures next generation dozers were no longer equipped with a PTO shaft option. This change in the industry would foreshadow the end of W3C production without any production dozers able to accept the PTO drive configuration. This was a sad change for many operators because the engine HP transfer to the winch via PTO is hard to match. The replacement winches for current production tractors are Hydraulic drive models where the winch drum is driven from a hydraulic motor powered from the tractor hydraulic system. Unless the tractor is specially designed with a very high flow and high performance aux hydraulic system the winch performance of a hydraulic winch will never match the PTO drive winches like the Allied W3C. For Applications like Logging or Skidding, the PTO drive winch will pull more weight at a faster line speed than almost all the Hydraulic winches on the market. Since the PTO drive winch has it's own small hydraulic pump internally and doesn't share hydraulic fluid with the tractor, the Allied W3C doesn't have to worry about overheating the hydraulic system either. Relative to the cost of the dozer these small PTO winches can be costly, but those in the industry know that they offer much better performance than most of the new winches that are still 2 or 3 times the cost of a Rebuilt Allied W3C
This Winch : This Allied W3C was build for a Komatsu D39-21 crawler. The winch arrived in good condition, but missing the install group operator hand controls and mounting brackets. When a winch sits for a while the brake often fuses together. Withe over 30 years of experience, we can confidently say customers will get a better value if we put together a complete install package and testing before installing on your tractor. The W3C must be split in half to do any work on it, so the best time to make sure it's running correctly is BEFORE installation on your dozer. There will be a lead time to get the specific mounting brackets to match your serial number tractor for installation. Please contact us with your serial number and we can put together a complete winch quote for you.
Conclusion : It has proven history of durability, long production history, high line pulls, simple design, and good product support for most of the components. It's been on the market a long time with several updates over the years to improve a couple weak points. There are hydraulic winches that offer better control for inching operation and variable line speed, but the W3C has been proven over decades to be a fantastic winch in the logging and recovery application. PTO winches like the W3C almost always out pull a hydraulic winch because the power available to the winch VIA the tractor PTO shaft is much greater than the power available VIA the the dozer ripper valve or tractor hydraulic pump. If you want a proven and durable winch that won't let you down the W6F is a fantastic choice.