AGCO Glencoe CM41, Operator'S Manual

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TORQUE CHART
BOLT TORQUE CHART - COARSE THREAD
Do not replace bolts with a grade other than the grade specified.
GRADE 1 GRADE 2 GRADE 5 GRADE 8 Metric Torque Ft-Lbs for -
Rd Hd Sq
Nk Bolts
No Marks 3 Lines on
Bolt Hd
6 Lines on
Bolt Hd
Size Grade
8.8
Grade
10.9
Grade
12.9
M4 2 2.9 3.6
M5 4 6 7
M6 7 10 11
M7 11 16 20
M8 18 25 29
Bolt Torque Ft-Lbs for -
Size Grade 1 Grade 2 Grade 5 Grade 8 M10 32 47 58
5/16 5 8 13 18 M12 58 83 100
3/8 9 15 23 35 M14 94 133 159
1/2 21 35 55 80 M16 144 196 235
M18 190 269 323
5/8 45 75 110 170
3/4 78 130 200 280 M20 260 366 440
7/8 125 125 320 460 M22 368 520 628
1 190 190 480 680 M24 470 664 794
M27 707 996 1205
M30 967 1357 1630
TIGHTENING STRAIGHT THREAD FITTINGS
The straight thread hydraulic fittings require precise tightening. Over-tightening of the hydraulic fittings will ruin
the sealing surfaces and will require the replacement of the damaged parts.
Do not use any teflon tape or thread sealant on any JIC fittings or in o-ring port cylinders.
Proper initial tightening procedure depends on the mating parts being connected. Proceed as follows:
• An adapter fitting (37 flare) connected to a double flare tube assembly requires that the fitting be
tightened finger tight and wrenched 1/2 turn (for single flare, 1/4 turn), 150-500 in. lbs.
• An adapter fitting (37 flare) connected to a hose requires fitting to be tightened finger tight and
wrenched 1/4 turn, 150-500 in. lbs.
• An o-ring adapter fitting connected to a solid port requires the fitting to be tightened so that the backup
washer contacts the face of the boss after the fitting has been properly positioned.
To re-tighten after initial tightening, as in service work, both tube and hose connections should be tightened
finger tight and wrenched 1/4 turn, 150-500 in. lbs. O-ring fittings should be tightened as for initial assembly.
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