MAINTENANCE 4.12 EVERY 1000 OPERATING HOURS OR EVERY 6 MONTH Power house Roof, illust. Z 20708 G Check fastening and condition of power house roof segments (02 - 05). G Check sealing elements (08) between roof segments for cor- rect seat and good condition. G Check sealing elements (11 - 16) between roof segments and roof frame (01) for correct seat and good condition. Reference No.: Qty. (06) 50 (20) 12 * SW = Wrench size 387 Bolt size mm Grade SW * mm Tightening torque Nm M12 10.9 19 108 M36 10.9 55 3100