Index Manuals SANY Crawler Hydraulic Excavator SY195C9, SY205C9, SY215C9, SY225C9. Service Manual (2013)
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Introduction 1.5 Table of Standard Tightening Torques Bolt diameter Bolt grade Wrench size Hex wrench size Hexagonal bolt Hexagonal socket head bolt N·m kgf·m lbf·ft N·m kgf·m lbf·ft M6 10.9 10 4 13.2 1.37 9.74 13.2 1.37 9.74 M8 10.9 13 6 31 3.16 22.87 31 3.16 22.87 M10 10.9 17 8 66 6.73 48.7 66 6.73 48.7 M12 10.9 19 10 113 11.53 83.39 113 11.53 83.39 M14 10.9 22 12 177 18.06 130.6 177 18.06 130.6 M16 10.9 24 14 279 28.47 205.9 279 28.47 205.9 M18 10.9 27 14 382 38.98 281.9 382 38.98 281.9 M20 10.9 30 17 549 56.02 405.16 549 56.02 405.16 M27 10.9 41 19 1320 134.7 974.16 1320 134.7 974.16 M10 12.9 17 6 78 7.96 57.76 78 7.96 57.76 M12 12.9 19 8 137 13.98 101.1 137 13.98 101.1 M16 12.9 24 14 339 34.6 250.18 339 34.6 250.18 M20 12.9 30 17 664 67.75 490 664 67.75 490 Table of tightening torques for bolts and nuts ● Unless speci fi ed otherwise, tighten metric nuts and bolts to the torque below. (When using torque wrench) NOTICE The following items apply to fi ne thread and coarse thread. ● Apply grease (zinc white B dissolved in spindle oil) onto the nuts and bolts to reduce ● Torque tolerance is ±10%. ● Always use bolts of correct length. The tip of bolts with excessive length may contact ● The torque values listed in the table are intended for general application. If different ● Make sure the threads are free of dirt or rusts before installation of nuts and bolts.
1-22 Introduction 1.6 Type of Bolts Tighten nuts and bolts properly to specified Use correct bolts and tighten them properly 1.7 Tightening Sequence When two or more bolts are being tightened, ZX215-1000031 Hex bolt Socket head hex bolt 10.9 12.9 8.8 ZX215-1000032 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 Cross tightening Diagonal tightening Central and diagonal tightening ZX215-1000033
CAUTION ● Always use suitable tools for specific ● Use tools of correct sizes when loosen- |