MAINTENANCE 4.12 EVERY 1000 OPERATING HOURS OR EVERY 6 MONTH High-Strength Bolt Connections (continued) Check condition and fastening of swivel joint (A), illust. Z 20865 Reference No.: Qty. (1) 4 (2) 8 * SW = Wrench size 403 Bolt size mm Grade SW * mm Tightening torque Nm M 16 10.9 24 265 M 16 10.9 24 265