UNDERCARRIAGE / Upper and Lower Roller 3. Tighten valve (1) on the track adjuster. : 24 mm : 147 N m (15 kgf m, 108 lbf ft) 1 2 CAUTION: If track sag should be measured with the machine raised, support the jacked up machine firmly by using the wooden blocks. 4. Jack up the track to be measured. Apply grease via grease fitting (2) and adjust track tension. Track sag specifications (A): ZAXIS450-3, 470H-3: 380 to 430 mm (15 to 17 in) ZAXIS450LC-3, 470LCH-3: 390 to 440 mm (15.4 to 17.3 in) ZAXIS500LC-3, 520LCH-3: 430 to 480 mm (17 to 19 in) W800-03-07-002 NOTE: Before measuring track sag, clean the track frame and tracks and rotate the track by a half turn in reverse direction. IMPORTANT:
Replace the upper roller as an as- sembly. 5. Add engine oil (API CD class SAE 30) through the plug (8) hole on cover (7). ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3: 120 mL (0.03 US gal.)) ZAXIS500LC-3, 520LCH-3: 150 mL (0.04 US gal.) 6. Apply LOCTITE #503 to plug (8). Install plug (8) to cover (7). W800-03-06-001 : 6 mm : 29.5 N m (3 kgf m, 22 lbf ft) W1J1-03-06-001 W3-6-3 7 8