Case CX490D, Operator'S Manual

Page: 229 / 370

6 - MAINTENANCE
Tightening torques
Check the tightening torques every 250 h (after the first 50 h during the run-in period).
NOTICE: At the end of each working day, check all mounting nuts and screws for tightness and tighten if necessary.
Make sure no hardware items are missing. Replace them, if necessary.
Component Screw Wrench Torque setting
Travel reduction gears (*) M24 36 mm 900 – 1051 N·m ( 664 – 775 lb ft )
Drive sprocket (*)
M24 36 mm
900 – 1051 N·m ( 664 – 775 lb ft )
Idler wheel (*)
M16 24 mm
267 – 312 N·m ( 197 – 230 lb ft )
Upper roller (*) M20 30 mm 521 – 608 N·m ( 384 – 448 lb ft )
Lower roller (*) M24 36 mm 902 – 1049 N·m ( 665 – 774 lb ft )
Track Guard (*)
M24 36 mm
902 – 1051 N·m ( 665 – 775 lb ft )
Counterweight M33 50 mm 1862 – 2058 N·m ( 1373 – 1518 lb ft )
Turntable (lower frame) M24 36 mm 952 – 1050 N·m ( 702 – 774 lb ft )
Turntable (swing frame) M24 36 mm 952 – 1050 N·m ( 702 – 774 lb ft )
Swing reduction gear (*)
M24 36 mm
900 – 1050 N·m ( 664 – 774 lb ft )
Engine mount front side (*) M30 46 mm 843.4 – 980.7 N·m ( 622 – 723 lb ft )
Engine mount rear side (*) M27 41 mm 843.4 – 980.7 N·m ( 622 – 723 lb ft )
Front engine mount bracket (*)
M10 17 mm
63.8 – 73.6 N·m ( 47 – 54 lb ft )
Rear engine mount bracket (*) M16 24 mm 245.2 – 274.6 N·m ( 181 – 203 lb ft )
Radiator M16 24 mm 147.2 – 176.6 N·m ( 109 – 130 lb ft )
Hydraulic pump (*) M12 19 mm 88 – 108 N·m ( 65 – 80 lb ft )
Hydraulic pump (*)
M20
Hexagon wrench 367 – 496 N·m ( 271 – 366 lb ft )
Hydraulic tank (*) M16 24 mm 225.6 – 264.8 N·m ( 166 – 195 lb ft )
Fuel tank (*) M16 24 mm 225.6 – 264.8 N·m ( 166 – 195 lb ft )
DEF/A
D
B
LUE
® tank (*)
M16 24 mm
232.4 – 276 N·m ( 171 – 204 lb ft )
Center joint (*) (lower frame)
M12 19 mm
109 – 127 N·m ( 80 – 94 lb ft )
Center joint (*) (swing frame) M16 24 mm 267 – 312 N·m ( 197 – 230 lb ft )
Control valve M20 30 mm 333 – 392 N·m ( 246 – 289 lb ft )
Cab M16 24 mm
149 – 173 N·m ( 110 – 128 lb ft )
NOTE: On the screws with mark (*), use L
OCTITE
® 262™ or its equivalent.
6-35