Operational Checkout Procedure TM2361 (24JUN08) 9005-10-19 450DLC Excavator Operation and Tests 062608 PN=235 Swing Power Check T140540 –UN–17MAY01 TX1000170 –UN–10NOV05 1—Engine Speed Dial 2—Auto-Idle Switch 3—Power Mode Switch Fill the bucket with dirt. Position machine on a hillside with a slope of approximately 25%. If a hill is not available, raise one side of machine approximately 300 mm (1 ft) with the boom and then put a block under the track. Move arm to the fully extended position. Raise boom so arm-to-bucket pivot pin is the same height as boom-to-frame pivot pin. Swing upperstructure clockwise so it is 90 degrees to the slope. Turn engine speed dial (1) to H (fast idle) position.
Turn power mode switch (3) to HP (high power) mode Actuate the swing function to swing uphill. LOOK: Does upperstructure swing uphill? Swing upperstructure 180 degrees counterclockwise and repeat procedure. Turn engine speed dial (1) to H (fast idle) position. Power mode switch (3) in HP (high power) mode. Actuate the swing function to swing uphill. LOOK: Does upperstructure swing uphill? YES: Go to next check. NO: See Swing Motor Crossover Relief Valve Test and Adjustment. (Group 9025-25.) NO: Check swing motor leakage. See Swing Motor Leakage Test. (Group 9025-25.) NO: See Diagnose Swing Circuit Malfunctions. (Group 9025-15.) NO: Check swing spool in control valve.
See Control Valve Remove and Install (Group 3360.) and see Control Valve 5 Spool Disassemble and Assemble. (Group 3360.) – – –1/1 9005 10 19