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9-118 2. Remove the upper cap screw, washer, and lock nut securing each limiter strap to the front arm. AG300 3. Remove the cap screws and washers securing the outer idler wheels; then slide the idler wheels from the shaft. AG322D 4. Remove the two cap screws and lock nuts securing the front arm to the slide rail brackets. AG304 5. Remove the front arm and account for the axles. INSPECTING NOTE: Whenever a part is worn excessively, cracked, or damaged in any way, replacement is 1. Inspect all front arm weldments for cracks or unusual bends. 2. Inspect all tubing (square and round) for cracks or unusual bends. 3. Inspect the bushings and axles for wear or dam- age. 4. Inspect the track bumpers (upper and lower). If worn, drill out the rivets securing the bumpers to the arm and replace with new bumpers. ASSEMBLING 1. Apply a light coat of grease to the axles and bush- ing areas. Position the front arm into the mounting brackets (upper holes) and secure with two cap screws and lock nuts. Position the lock nuts to the inside of the brackets. Tighten to 4.2 kg-m (30 ft-lb). AG305 AG304 2. Wrap the limiter straps around the front arm and align the holes. Secure each strap with a cap screw, washers (one on each side of the strap), and lock nut. Tighten to 1.1 kg-m (8 ft-lb). |