Integral Arches are recommended for tractors working on "right-of-way" and for tractor yarding where speed and maneuverability are primary considerations. Its function is to give a tractor better yarding performance than can be obtained with the winch alone. The arch permits side lead in winching, and by getting the log ends out of the mud, makes hauling much easier and prevents log damage. MODEL NO. WEIGHT FOR USE WITH TRACTORS SA-20 Straddle Arch 550 CASE 850G; CAT D4; DEERE 450G, 550G, 650G TMA-20 Top Mounted Arch SA-30 Straddle Arch 1,100 CASE 115E; CAT D5, D6; DEERE 750B TMA-30 Top Mounted Arch SA-40 Straddle Arch 1,325 CASE 1450B, CAT D7, D8, D9, DEERE 850B TMA-40 Top Mounted Arch
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