Operational Checkout Procedure TM2361 (24JUN08) 9005-10-27 450DLC Excavator Operation and Tests 062608 PN=243 Cycle Times Check 450DLC CAUTION: Prevent possible injury from unexpected machine movement. Clear all persons from the area before operating machine. NOTE: Warm hydraulic oil to operating temperature for this check. 1—Engine Speed Dial 2—Auto-Idle Switch 3—Power Mode Switch Turn engine speed dial (1) to H (fast idle) position. Turn auto-idle switch (2) to A/I OFF. TX1000170 –UN–10NOV05 T6477AQ –UN–19OCT88 T7884AE –UN–10NOV92 Boom Arm, Bucket, Swing Move machine to position shown for each test. Record cycle time for each function.
Specification Boom Raise (Cylinder Extend)—Cycle Time (Seconds).................................................................................................... 3.3—3.9 Boom Lower (Cylinder Retract)—Cycle Time (Seconds).................................................................................................... 2.2—2.8 Arm In (Cylinder Extend)—Cycle Time (Seconds)............................................................................................................. 4.2—4.8 Arm Out (Cylinder Retract)—Cycle Time (Seconds).............................................................................................................
2.8—3.4 Bucket Load (Cylinder Extend)—Cycle Time (Seconds).................................................................................................... 3.2—3.8 Bucket Dump (Cylinder Retract)—Cycle Time (Seconds).................................................................................................... 2.6—3.2 Swing Left or Right, 3 Revolutions From a Running Start—Cycle Time (Seconds)........................................................18.5—21.5 Drive 20 m (65 ft) From A Running Start (Check In Forward And Reverse With Travel Speed Switch In FAST Position)—Cycle Time (Seconds)....................................................................
11.0—15.0 Drive 20 m (65 ft) From A Running Start (Check In Forward And Reverse With Travel Speed Switch In SLOW Position)—Cycle Time (Seconds).................................................................... 18.0—22.0 Track Raised For 3 Revolutions From A Running Start (Check In Forward And Reverse With Travel Mode Switch In FAST Position)—Cycle Time (Seconds).......................................................... 20.0—24.0 Track Raised For 3 Revolutions From A Running Start (Check In Forward And Reverse With Travel Mode Switch In SLOW Position)—Cycle Time (Seconds)........................................................ 32.0—36.0 LOOK: Does machine perform within specifications? YES:
Go to next check. NO: See Diagnose Hydraulic System Malfunctions. (Group 9025-15.) – – –1/1 9005 10 27