Textron Jacobsen Super LF 1880 Fairway Mower with ROPS, Service & Repair Instructions

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INTRODUCTION
1A-5
TORQUE VALUES
Torque values are given in the “Torque Specifications
Chart.” Special torque values are called out in illustra-
tions and text throughout this manual.
Torque Specifications - Standard SAE Grade #5 Screws
Torque Specifications - Metric
Size (In) Torque Values Size (In) Torque Values
8-32 27-33 in-lbs (3-4 Nm) 1/2-13 67-83 ft-lbs. (90-113 Nm)
8-36 28-34 in-lbs (3-4 Nm) 1/2-20 81-99 ft-lbs (110-134 Nm)
10-24 39-47 in-lbs (4-5 Nm) 9/16-12 99-121 ft-lbs (134-164 Nm)
10-32 44-54 in-lbs (5-6 Nm) 9/16-18 108-132 ft-lbs (146-179 Nm)
1/4-20 7-9 ft-lbs (9-12 Nm) 5/8-11 135-165 ft-lbs (183-223 Nm)
1/4-28 9-11 ft-lbs (12-15 Nm) 5/8-18 162-198 ft-lbs (220-268 Nm)
5/16-18 15-18 ft-lbs (20-24 Nm) 3/4-10 234-286 ft-lbs (317-388 Nm)
5/16-24 17-21 ft-lbs (23028 Nm) 3/4-16 270-330 ft-lbs (366-447 Nm)
3/8-16 27-33 ft-lbs (37-45 Nm) 7/8-9 360-440 ft-lbs (488-597 Nm)
3/8-24 31-39 ft-lbs (42-53 Nm) 7/8-14 396-484 ft-lbs (537-656 Nm)
7/16-14 45-55 ft-lbs (61-75 Nm) 1-8 522-638 ft-lbs (708-865 Nm)
7/16-20 49-61 ft-lbs (66-83 Nm) 1-12 576-704 ft-lbs (780-954 Nm)
NOTE: These torque values are to be used for all hardware excluding: locknuts, self-tapping screws, thread
forming screws, sheet metal screws, and socket head setscrews.
Diameter —
Coarse thread
Metric Grade
5.6 8.8 10.9 12.9
Nm ft-lbs Nm ft-lbs Nm ft-lbs Nm ft-lbs
M6 4.6 3.3 10.5 7.7 15 11 18 13
M7 7.8 5.6 17.5 12.9 26 18.4 29 21.3
M8 11 8.1 26 19 36 26 43 31
M10 22 16 51 37 72 53 87 64
M12 39 28 89 66 125 92 150 110
M14 62 45 141 103 198 146 240 177
M16 95 70 215 158 305 224 365 269
M18 130 95 295 217 420 309 500 368
M20 184 135 470 309 590 435 710 623