Komatsu 15045 Operation & Maintenance Manual page 417

MAINTENANCE
High-Strength Bolt Connections (continued)
Check fastening and condition of hydraulic oil cooler,
illust. Z 21673
Reference No.:
(1)
(2)
* SW = Wrench size
Re-tighten mounting bolts to their correct torque and replace
missing or damaged bolts.
Bolt size
Grade
mm
M30 10.9
M30 10.9
4.12 EVERY 1000 OPERATING HOURS OR EVERY 6 MONTH
SW * Tightening torque
mm Nm
46 1770
46 1770
Qty.
4
4
417