CASE CONSTRUCTION CX37C - Tightening torques

6-MAINTENANCE
Tighteningtorques
Checkthetighteningtorquesevery250h(aftertherst50hduringtherun-inperiod).
Component
Boltsize
Torquesetting
Enginemountingbolt(engine–bracket)
M10x1.25
54.2–81.3N·m(40–60lbft)
Enginemountingbolt(bracket-frame)
M12×1.75
96.3–155.9N·m(71–115lbft)
Radiatormountingboltandnut
M12×1.75
54.2–81.3N·m(40–60lbft)
Engine
Couplingmountingbolt
M12×1.75
86.1–98N·m(63.5–72.3lbft)
Mainpumpmountingbolt
M12×1.75
74.6–112.5N·m(55–83lbft)
Maincontrolvalvemountingbolt
M10x1.5
54.2–81.3N·m(40–60lbft)
Fueltankmountingbolt
M12×1.75
96.3–155.9N·m(71–115lbft)
Hydraulicoiltankmountingbolt
M12×1.75
96.3–155.9N·m(71–115lbft)
Turningjointmountingboltandnut
M10x1.5
54.2–81.3N·m(40–60lbft)
Hydraulic
system
Swingmotormountingbolt
M14x2.0
164.1–221N·m(121–163lbft)
Swingbearinguppermountingbolt
M12×1.75
110.8–150.1N·m(81.7–110.7lbft)
Swingbearinglowermountingbolt
M12×1.75
106.4–145.8N·m(78.5–107.5lbft)
Travelmotormountingbolt
M12×1.75
125.8–145.3N·m(92.8–107.2lbft)
Power
train
system
Sprocketmountingbolt
M12×1.75
108.9–132.5N·m(80.3–97.7lbft)
Carrierrollermountingboltandnut
M12×1.75
108.9–132.5N·m(80.3–97.7lbft)
Under-
carriage
Trackrollermountingbolt
M18×2.0
366.2–444.6N·m(270.1–327.9lbft)
Counterweightmountingbolt
M20x2.5
482.8–653.4N·m(356.1–481.9lbft)
Cabmountingbolt,nut
M12×1.75
127.4N·m(94lbft)
Other
systems
Operator’sseatmountingbolt
M8×1.25
19.7–30.8N·m(14.5–22.7lbft)
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