OPERATING THE MACHINE OPERATING BACKHOE 1. Place the bucket teeth on the ground with the bottom of the bucket at a 45 degree angle to the ground. 2. Pull the bucket toward the machine using the arm as the main digging force. 3. When soil sticks to the bucket, remove it by moving the arm and/or bucket rapidly back and forth. 4. When trenching a straight line, position the tracks par- allel to the trench. After digging to the desired depth, move the machine as required to continue the trench. M107-05-037 IMPORTANT: When lowering the boom, avoid sudden stops that may cause shock load damage to the machine. When operating the arm, avoid bottoming the cylinder to prevent cylinder damage.
When digging at an angle, avoid striking the tracks with the bucket teeth. When digging a deep excavation, avoid striking the boom or bucket cylinder hoses against the ground. GRADING OPERATION IMPORTANT: Do not pull or push dirt with the bucket when traveling. Select grading mode when finishing work is required. Position the arm slightly forward of the vertical position with bucket rolled back, as shown. Operate arm roll-in function while slowly raising the boom. Once the arm moves past, the vertical position slowly lower the boom to allow the bucket to maintain a smooth surface. M104-05-017 Grading operation can be more precisely done by operating the boom, arm and bucket simultaneously.
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