TM2361 (24JUN08) 9005-10-20 450DLC Excavator Operation and Tests 062608 PN=236 Operational Checkout Procedure Dig Function Drift Check YES: Go to next check. NO: See Load Drifts Down When Control Valve Is In Neutral Position. (Group 9025-15.) 9005 10 20 T6904AG –UN–06DEC88 Fill the bucket with dirt. Position bucket at maximum reach with bucket pivot pin at the same height as boom pivot pin. Retract arm cylinder, then extend about 2 inches Extend bucket cylinder, then retract about 2 inches. Stop engine. Measure amount cylinders extend or retract in 5 minutes. Measure distance from bottom of bucket to ground. Compare measurements to specifications.
450DLC—Specification Boom Cylinder—Drift.............................................................................................. 15 mm 0.6 in. Arm Cylinder—Drift................................................................................................ 20 mm 0.8 in. Bucket Cylinder—Drift............................................................................................ 20 mm 0.8 in. Bottom Of Bucket-To-Ground—Drift.................................................................... 100 mm 3.94 in. LOOK: Is cylinder drift within specification? – – –1/1 Operational Checkout Procedure Dig Function Drift Check T6904AG –UN–06DEC88 Fill the bucket with dirt.
Position bucket at maximum reach with bucket pivot pin at the same height as boom pivot pin. Retract arm cylinder, then extend about 2 inches Extend bucket cylinder, then retract about 2 inches. Stop engine. Measure amount cylinders extend or retract in 5 minutes. Measure distance from bottom of bucket to ground. Compare measurements to specifications. 450DLC—Specification Boom Cylinder—Drift.............................................................................................. 15 mm 0.6 in. Arm Cylinder—Drift................................................................................................ 20 mm 0.8 in.
Bucket Cylinder—Drift............................................................................................ 20 mm 0.8 in. Bottom Of Bucket-To-Ground—Drift.................................................................... 100 mm 3.94 in. LOOK: Is cylinder drift within specification? YES: Go to next check. NO: See Load Drifts Down When Control Valve Is In Neutral Position. (Group 9025-15.) – – –1/1 9005 10 20