HOSE BK 5417110 - Caterpillar

(4ZJ535),
320 L (3XK1425),
320 N (9WG1055) ExcavatorsDescription of Change: New bolts are now used to mount the swing bearing and gear. The higher quality bolts and higher tightening specification provide increased service life. Adaptable To: The new 112-3926 Bolts are a direct replacement for the former 8T-0362 Bolts used to secure the swing bearing to the upper frame. The new 112-3927 Bolts are a direct replacement for the former 8T-0360 Bolts used to secure the swing bearing to the carbody. Use thirty-four 112-3926 Bolts and thirty-six 112-3927 Bolts. Tighten the new bolts to a torque of 568 59 N m (420 44 lb ft). The changes are in effect with the PIN's listed above.