A 639 is originally a twin engine 633 elevating scraper.i've never heard of a 639....great find!
Pj
Now I knew about 639s but never heard of 629s. Those fellas at Cat locked a 623 into a room with a 627 and popped the 629? Cool!I see theres 2 x 629D's for sale in Queensland mid june
My thoughts exactly,what a wasteCat 639D was the biggest elevator scraper that Cat ever built, primarily to compete with the WEabco 333FT & 353FT.
Seems it went the same way as they did as it wasn't in production very long.
Personally I think it's pretty sad to see such a fine & rare machine converted to a water tanker but that's my personal opinion.
Far too often these things are cut up and before you know it they are all gone.