IHI 17VX3 - Check the Fixed Bolt Torque

MAINTENANCE
500 HOURS MAINTENANCE AND CHECKS
First perform previous service hour hems
17VX3
500 HOURS
• Check the Fixed Bolt Torque
When loosened bolt or nut is found at daily check, tighten it
with torque specifications table.
1. Special torque specifications
Special tighten is applied for main bolts as illustrated below.
When replacing bolts, apply molybdenum grease to bolts,
nuts, and bearing surface
of nuts.
Then, tighten them with specified torque.
Wrench Size Thread Size
Tighten Torque
Items Tighten point
metrie (mm)
(Nem)
Q)
Travel drive Bar8 M10 55
Q)
Sprocket Bar8 M10 55
G)
Lower roller 19 M12 108
®
Swing bearing 19 M12 108
~
Swing motor Bar10 M12 108
Newton meter (Nem)
is approximately the same as 0.1 kgem
2. General torque specifications
Other than above-mentioned, refer the next table for torques.
Thread Wrench
Tighten torque
Size size
Metric Metric fine
metric (mm)
coarse H.T. H.T. bolt
N·m N·m
M8 13 23 25
M10 17 47
50
M12 19 83 91
M14 22 134 135
M16 24 206 220
M20 30 412 450
M24 36 715 813
4-8-1
High pressure-hose
union nut
Hose Size
Tighten torque
(inch)
Nem
1/4"
25
3/8"
49
1/2"
59
3/4"
118
1"
137
1-1/4"
167