Case CX350B - Swing Unit; Travel Lower Body

Lep SM350B370B1002-2EN Issued 04-2010
1002-15
Foot control valve
Manufacturer................................................................................................................................................... Kawasaki
Operating pressure .......................................................................................................................... 3.92 MPa (569 psi)
Secondary pressure, primary short type .......................................................... 0.64 to 2.45 MPa (92.82 to 355.34 psi)
Operating angle ..................................................................................................................................................... 12.4°
Swing unit
Swing circle; swing bearing type (with internal gears)
Swing hydraulic motor (1) .............................................................. fixed displacement piston motor (with parking brake).
Intake amount .......................................................................................................................................... 180.1 cm
3
/rev
Operating pressure ........................................................................................................................ 30.4 MPa (4409 psi)
Operating flow..................................................................................................................................................290L/min
Mechanical brake torque ...................................................................................................................... 1010.8 Nm min.
Brake off pressure .....................................................................................................................3.1 MPa max. (449 psi)
Relief valve set pressure................................................................................................................ 30.4 MPa (4409 psi)
Reduction gears................................................................................................ planetary gear 2-stage reduction system
Reduction ratio.....................................................................................................................................................27.143
Swing parking brake; mechanical lock (operational lever linkage type)
Travel lower body
Travel hydraulic motor (x2) ......................................................................................Fixed displacement axial piston motor
Displacement ...................................................................................................290.7/170.1 cm
3
(17.73/10.38 cu in)/rev
Operating pressure ........................................................................................................................ 34.3 MPa (4975 psi)
Operating flow......................................................................................................................... 292.5 L/min (77.27 gpm)
Brake torque ...........................................................................47.38 KNm (34945 Ib-ft) min. (including reduction gear)
Relief valve set pressure....................................................................................... 35.8 to 37.8 MPa (5192 to 5482 psi)
Automatic 2-speed switch-over pressure (with parking brake) ...................................................... 26.5 MPa (3843 psi)
Reduction gear....................................................................................................... Planetary gear 2-stage reduction gear
Reduction ratio.....................................................................................................................................................40.467
Travel brake.................................................................................................................................................. Hydraulic lock
Parking brake ................................................................................................... Mechanical lock (travel lever linkage type)
Track shoe
Model ........................................................................................................................Assembly type triple grouser shoe
Number of shoes (per side) ........................................................................................................ 48 for LC (45 for STD)
Shoe width ........................................................................................ 600 mm (23.62 in), (optional 800 mm, (31.49 in))
Grouser height ...................................................................................................................................... 36 mm (1.41 in)
Link pitch............................................................................................................................................. 216 mm (8.50 in)
Roller
Number of upper rollers (per side)................................................................................................................................2
Number of lower rollers (per side) .................................................................................................. 8 for LC (7 for STD)
Track belt tension adjuster ...............................................................................Grease cylinder type (with cushion spring)
Mounting length of spring...................................................................................................................... 779 mm (30.66 in)
Issued 11-2015