TM2361 (24JUN08) 9005-10-24 450DLC Excavator Operation and Tests 062608 PN=240 Operational Checkout Procedure Bucket Regenerative 1—Engine Speed Dial YES: Go to next check. Valve Operation Check 2—Auto-Idle Switch 3—Power Mode Switch NO: Check bucket regenerative valve. See Turn engine speed dial (1) to H (fast idle) position. Bucket Regenerative Valve Circuit Operation. Turn power mode switch (3) to P (power) mode. (Group 9025-05.) Actuate boom up, arm out and bucket dump functions. TX1000170 –UN–10NOV05 Actuate boom down function, arm in function, and then the bucket curl function. 9005 10 LOOK:
Does the bucket move smoothly through the 24 complete cycle and not hesitate when it goes to the curl position? – – –1/1 Operational Checkout Procedure Bucket Regenerative Valve Operation Check 1—Engine Speed Dial 2—Auto-Idle Switch 3—Power Mode Switch Turn engine speed dial (1) to H (fast idle) position. Turn power mode switch (3) to P (power) mode. Actuate boom up, arm out and bucket dump functions. TX1000170 –UN–10NOV05 Actuate boom down function, arm in function, and then the bucket curl function. LOOK: Does the bucket move smoothly through the complete cycle and not hesitate when it goes to the curl position? YES: Go to next check. NO: Check bucket regenerative valve.
See Bucket Regenerative Valve Circuit Operation. (Group 9025-05.) – – –1/1 9005 10 24 Travel Speed Selection Check 1—Engine Speed Dial 2—Auto-Idle Switch 3—Power Mode Switch 4—Travel Speed Switch Turn engine speed dial (1) to H (fast idle) position. Turn travel speed switch (4) to slow speed (turtle) mode. Actuate travel function to full speed. Turn travel speed switch (4) to fast speed (rabbit) mode. LOOK: Does machine travel speed increase? Actuate a dig function and then return to neutral. LOOK: Does machine travel speed decrease and then increase as dig function is actuated and then released? TX1000744 –UN–29NOV05 Turn travel speed switch (4) to slow speed (turtle) mode. LOOK:
Does machine travel speed decrease? YES: Go to next check. NO: Check travel pressure sensor (B34) and travel speed switch (S11). See Pressure Sensor Test (Group 9015-20.) and see Travel Motor Speed Circuit Operation. (Group 9025-05.) – – –1/1