6.5 Undercarriage 1) Track frame All welded, stress relieved, precision machined unit, especially designed for rigidity and durability. 2) Side frame Side frame of all-welded construction can be expanded for better stability of the machine during working and retracted for minimizing its transportation dimensions by hydraulic cylinders equipped as standard. 3) Track shoes Shoes are cast, heat-treated steel, flat and tapered surfaces and are connected by heat-treated steel pins. 4) Rollers Life-lubricated lower rollers, upper rollers and drive tumblers. Lower rollers and upper rollers in each side frame, with double rolling surfaces. 6.6 Hydraulic system A semi-closed circuit hydraulic system with double-plunger pump plus 3-gear pump assures both independent and simultaneous operations of all functions. 6.6.1 Main pump (Double-plunger pump) 1) Type Plunger pump 1 Plunger pump 2 Variable displacement Variable displacement Total power control Total power control 2)Setting pressure 320 kgf/cm² 320 kgf/cm² (31.3 MPa) (31.3 Mpa) 3)Oil flow 242 lit./min. 242 lit./min. 4)Applications Travel (L.H.) Travel (R.H.) Boom drum Main/Aux. drum (low) Main/Aux. drum(high) 6.6.2 Gear pump 1) Type Gear pump 1 Gear pump 2 Gear pump 3-4 2) Setting pressure 210kgf/cm² 175kgf/cm² (20.6 MPa) (17.1 MPa) 3)Oil flow 135 lit./min. 88.9 lit/min. 4)Applications Swing Front-end Pilot circuit Expansion attachments Hose reel of crawlers
SPEC-ED6200H/F5-B3162‐AE-14
Due to company policy of continuous development and improvement, the right is reserved to change the specifications without
notice.
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