Zoomlion ZT20J, Руководство по обслуживанию и ремонту

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2-5
e. Some flow control functions may be disabled when the speed knob is positioned to low speed.
2.7 Torque Requirements
Table 2-10 Toque Requirements
Bolt Diameter
Strength Grade and Corresponding Torque
8.8 grade 10.9 grade
M8 24.5Nm/18ftlb 34.5 Nm/25.4ftlb
M10 48.3 Nm/35.6ftlb 68 Nm/50.2ftlb
M12 84.3 Nm/62.2ftlb 118 Nm/87ftlb
M14 135 Nm/99.5ftlb 189 Nm/139.4ftlb
M16 209 Nm/154.2ftlb 294 Nm/217ftlb
M18 288 Nm/212.4ftlb 405 Nm/298.7ftlb
M20 408 Nm/301ftlb 538 Nm/396.8ftlb
M22 555 Nm/409.4ftlb 780 Nm/575.3ftlb
M24 705 Nm/520ftlb 992 Nm/731.7ftlb
M27 1032 Nm/761.2ftlb 1450 Nm/1069.5ftlb
M30 1400 Nm/1032.6ftlb 1970 Nm/1453ftlb
Note: when maintenance is required or the fasteners are loose, follow the torque gauge to determine
the appropriate torque value.
2.8 Lubrication
2.8.1 Hydraulic oil
Table 2-11 Hydraulic oil specification
ISO viscosity grade 32
Pour Point -39
℃
/-38.2
℉
Flash Point 231
℃
/447.8
℉
Motion Viscosity cSt
（
40
℃
/104
℉
）
33.4
VI viscosity index 150