UNDERCARRIAGE / Upper And Lower Roller 4. Tighten valve (4) on the track adjuster. : 24 mm 4 : 88 N m (9.0 kgf m, 55 lbf ft) 5 CAUTION: Support the jacked up machine firmly by using wooden blocks. 5. Jack up the track to be adjusted and rotate the track in the reverse direction a little. 6. Apply grease through grease fitting (5) and adjust the track tension. Track sag specifications (A): 340 to 380 mm (13.4 to 15.0 in) W1V7-03-04-006 W800-03-06-001 W3-6-6