LeeBoy 8616B, Operation, Service And Parts Manual, Page: 35 / 287

Metric Fasteners
Table 2-18. Torque Specifications for Metric Fasteners
NOMINAL SIZE
AND PITCH
CLASS 8.8 [GRADE 5 EQUIVALENT] CLASS 10.9 [GRADE 8 EQUIVALENT]
TORQUE (ft lb) TORQUE N•m TORQUE (ft lb) TORQUE N•m
Dry Lubed Dry Lubed Dry Lubed Dry Lubed
M4 x 0.7 2 2 3 2 3 2 4 3
M5 x 0.8 5 3 7 4 7 5 9 7
M6 x 1 8 6 11 8 11 8 15 11
M8 x 1.25 19 14 26 19 27 20 37 27
M10 x 1.5 37 28 50 38 53 40 72 54
M12 x 1.75 65 49 88 66 93 70 126 95
M14 x 2 104 78 141 106 148 111 201 150
M16 x 2 161 121 218 164 230 173 312 235
M18 x 2.5 222 167 301 226 318 239 431 324
M20 x 2.5 314 236 426 320 449 337 609 457
M22 x 2.5 428 321 580 435 613 460 831 624
M24 x 3 543 407 736 552 777 582 1053 789
M27 x 3 796 597 1079 809 1139 854 1544 1158
M30 x 3.5 1079 809 1463 1097 1544 1158 2093 1570
Hydraulic Fittings
Tightening Flare-Type Tube Fittings
1. Check the flare and flare seat for defects that might
cause leakage.
2. Align tube with fitting before tightening.
3. Lubricate connection.
4. Hand tighten swivel nut until snug.
5. To prevent twisting the tube(s), use two wrenches.
Place one wrench on the connector body and
tighten the swivel nut with the second to the torque
shown in
Table 2-11 .
NOTE: The torque values shown are based upon
lubricated connections.
Table 2-19. Torque Specifications for Steel Flare
Type Tube Fittings
TUBE SIZE
OUTER
DIAMETER
NUT SIZE
ACROSS
FLATS
TORQUE VALUE
(IN) (IN) (LB FT) (N•m)
3/16 7/16 8 11
1/4 9/16 12 16
5/16 5/8 16 22
3/8 11/16 23 31
1/2 7/8 38 52
5/8 1 54 73
3/4 1 1/4 75 102
7/8 1 3/8 83 113
2
LeeBoy 8616B Conveyor Paver
2-11
Information and Specifications